Perpetual benchmark thread... - Page 7

RickC · 2004-11-13, 19:36

Dell Dimension 8400
Prescott P4 530 3Ghz with HT enabled
800Mhz FSB
1GB DDR2 533Mhz SDRAM
Memory timings 4-4-4-11

Intel(R) Pentium(R) 4 CPU 3.00GHz
CPU speed: 2992.62 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: unknown
L2 cache size: 1024 KB
L1 cache line size: unknown
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 13.496 ms.
Best time for 448K FFT length: 16.435 ms.
Best time for 512K FFT length: 18.520 ms.
Best time for 640K FFT length: 22.103 ms.
Best time for 768K FFT length: 26.495 ms.
Best time for 896K FFT length: 32.001 ms.
Best time for 1024K FFT length: 35.678 ms.
Best time for 1280K FFT length: 47.433 ms.
Best time for 1536K FFT length: 56.837 ms.
Best time for 1792K FFT length: 68.142 ms.
Best time for 2048K FFT length: 75.934 ms.

Xyzzy · 2004-11-17, 01:04

Dell Dimension 3000
2.8GHz Prescott with 1MB L2 cache
2x256MB dual channel PC3200 @ PC2700 (533MHz FSB) CAS 2.5-3-3-7
No HT, PAT enabled
Onboard integrated graphics (I added a PCI video card but the times were the same!)

Intel(R) Pentium(R) 4 CPU 2.80GHz
CPU speed: 2792.91 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: unknown
L2 cache size: 1024 KB
L1 cache line size: unknown
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 14.153 ms.
Best time for 448K FFT length: 17.207 ms.
Best time for 512K FFT length: 19.421 ms.
Best time for 640K FFT length: 22.937 ms.
Best time for 768K FFT length: 27.816 ms.
Best time for 896K FFT length: 33.254 ms.
Best time for 1024K FFT length: 37.036 ms.
Best time for 1280K FFT length: 49.127 ms.
Best time for 1536K FFT length: 59.320 ms.
Best time for 1792K FFT length: 70.765 ms.
Best time for 2048K FFT length: 79.966 ms.
Best time for 2560K FFT length: 101.899 ms.
Best time for 3072K FFT length: 127.414 ms.
Best time for 3584K FFT length: 151.838 ms.
Best time for 4096K FFT length: 169.765 ms.

Pconfig · 2004-12-05, 09:51

Precott 550 CPU on LGA775
1024mb DDR2 ram
225*17 = 3825 MHz

Intel(R) Pentium(R) 4 CPU 3.40GHz
CPU speed: 3825.20 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: unknown
L2 cache size: 1024 KB
L1 cache line size: unknown
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 10.609 ms.
Best time for 448K FFT length: 12.911 ms.
Best time for 512K FFT length: 14.638 ms.
Best time for 640K FFT length: 17.431 ms.
Best time for 768K FFT length: 20.925 ms.
Best time for 896K FFT length: 25.299 ms.
Best time for 1024K FFT length: 28.172 ms.
Best time for 1280K FFT length: 37.391 ms.
Best time for 1536K FFT length: 44.654 ms.
Best time for 1792K FFT length: 53.613 ms.
Best time for 2048K FFT length: 59.840 ms.

call_apple · 2004-12-08, 23:18

Cpu One
======================================================
Old:
AMD Athlon(TM) MP 2200+
CPU speed: 1800.15 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.3, RdtscTiming=1
Best time for 384K FFT length: 41.519 ms.
Best time for 448K FFT length: 47.322 ms.
Best time for 512K FFT length: 52.143 ms.
Best time for 640K FFT length: 66.722 ms.
Best time for 768K FFT length: 81.191 ms.
Best time for 896K FFT length: 94.903 ms.
Best time for 1024K FFT length: 109.538 ms.
Best time for 1280K FFT length: 143.869 ms.
Best time for 1536K FFT length: 173.316 ms.
Best time for 1792K FFT length: 207.672 ms.
Best time for 2048K FFT length: 233.781 ms.

New:
AMD Athlon(TM) MP 2200+
CPU speed: 1800.17 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 39.208 ms.
Best time for 640K FFT length: 52.837 ms.
Best time for 768K FFT length: 64.023 ms.
Best time for 896K FFT length: 77.936 ms.
Best time for 1024K FFT length: 86.933 ms.
Best time for 1280K FFT length: 121.610 ms.
Best time for 1536K FFT length: 144.434 ms.
Best time for 1792K FFT length: 173.274 ms.
Best time for 2048K FFT length: 195.461 ms.

Cpu Two
==========================================================

Old:
AMD Athlon(TM) MP 2200+
CPU speed: 1800.17 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 42.440 ms.
Best time for 448K FFT length: 49.725 ms.
Best time for 512K FFT length: 55.982 ms.
Best time for 640K FFT length: 69.025 ms.
Best time for 768K FFT length: 86.266 ms.
Best time for 896K FFT length: 102.657 ms.
Best time for 1024K FFT length: 118.855 ms.
Best time for 1280K FFT length: 161.338 ms.
Best time for 1536K FFT length: 187.211 ms.
Best time for 1792K FFT length: 234.243 ms.
Best time for 2048K FFT length: 272.827 ms.

New:

AMD Athlon(TM) MP 2200+
CPU speed: 1799.98 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 37.970 ms.
Best time for 640K FFT length: 51.516 ms.
Best time for 768K FFT length: 65.473 ms.
Best time for 896K FFT length: 76.852 ms.
Best time for 1024K FFT length: 84.473 ms.
Best time for 1280K FFT length: 121.307 ms.
Best time for 1536K FFT length: 148.918 ms.
Best time for 1792K FFT length: 170.046 ms.
Best time for 2048K FFT length: 196.279 ms.

Arthanis · 2004-12-13, 22:44

AMD Athlon(tm) XP 2800+
CPU speed: 2104.25 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 32.000 ms.
Best time for 448K FFT length: 37.268 ms.
Best time for 512K FFT length: 39.828 ms.
Best time for 640K FFT length: 52.321 ms.
Best time for 768K FFT length: 62.694 ms.
Best time for 896K FFT length: 74.428 ms.
Best time for 1024K FFT length: 83.805 ms.
Best time for 1280K FFT length: 112.444 ms.
Best time for 1536K FFT length: 130.893 ms.
Best time for 1792K FFT length: 162.407 ms.
Best time for 2048K FFT length: 175.045 ms.
[Sat Dec 11 19:57:26 2004]

Sorry for ask, isnt mine too low for a Athlon XP barton 2800 +? I f it is, what can I do to improve it?

db597 · 2004-12-14, 02:31

Results for P4 560 LGA775 cpu overclocked to 3.5GHz (using dual channel DDR2 533MHz memory). CPU is the Prescott D0 stepping. Operating system used is Linux Fedora Core 3 on the v2.6.9 SMP kernel.

The cpu is totally stable, and I can even overclock to 3.6+GHz. But when running Prime95, the temperature soon nears 80 degrees.... something I'm not too comfortable with. Once over the 3.5GHz mark, temperature increases exponentially. I've capped the overclock to 3.5GHz - temp is just a tad under 70 degrees using stock cooling.

-----------------------------------------

Intel(R) Pentium(R) 4 CPU 3.20GHz
CPU speed: 3498.11 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: unknown
L2 cache size: 1024 KB
L1 cache line size: unknown
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.5, RdtscTiming=1
Best time for 384K FFT length: 11.793 ms.
Best time for 448K FFT length: 14.393 ms.
Best time for 512K FFT length: 16.170 ms.
Best time for 640K FFT length: 19.264 ms.
Best time for 768K FFT length: 23.014 ms.
Best time for 896K FFT length: 27.900 ms.
Best time for 1024K FFT length: 31.025 ms.
Best time for 1280K FFT length: 41.291 ms.
Best time for 1536K FFT length: 49.396 ms.
Best time for 1792K FFT length: 59.506 ms.
Best time for 2048K FFT length: 66.311 ms.
Best time for 2560K FFT length: 86.558 ms.
Best time for 3072K FFT length: 106.501 ms.
Best time for 3584K FFT length: 127.698 ms.
Best time for 4096K FFT length: 141.639 ms.

db597 · 2004-12-14, 02:43

Quote:

Originally Posted by Arthanis

Sorry for ask, isnt mine too low for a Athlon XP barton 2800 +? I f it is, what can I do to improve it?

Go download the new 24.6 version of Prime95 (you are using v23.8). It should give you almost a 20% speed up! :)

Arthanis · 2004-12-14, 08:51

Oh, thank you, I will try that

Arthanis · 2004-12-14, 09:00

Wherer do I find it? It isnt in theDownload section...

ET_ · 2004-12-14, 09:17

http://www.mersenne.org/gimps/p95v246.zip

Luigi

E_tron · 2004-12-16, 00:14

Whoa, there's a new version? That helps Athlons?!!! I stopped checking like a year ago.

Uncwilly · 2004-12-16, 00:20

Quote:

Originally Posted by E_tron

Whoa, there's a new version? That helps Athlons?!!! I stopped checking like a year ago.

It is a beta. "No yet ready for prime time" so to speak. A few problems have been found. At least 1 fixed. Another is being checked on. A tweak is need to keep it from slowing down the P-III's. And we need to turn in a few DC's to check on it.

Uncwilly · 2004-12-19, 05:59

For the fun of it I ran benches on the same machine with v22.1 (what I started with on this machine) in my normal config and v24.6 in safe mode.

First the old V22.1

Code:

AMD Athlon(tm) processor
CPU speed: 1128.29 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 24
L2 TLBS: 256
Prime95 version 22.10, RdtscTiming=1
Best time for 256K FFT length: 50.613 ms.
Best time for 320K FFT length: 64.620 ms.
Best time for 384K FFT length: 82.011 ms.
Best time for 448K FFT length: 92.731 ms.
Best time for 512K FFT length: 102.519 ms.
Best time for 640K FFT length: 129.162 ms.
Best time for 768K FFT length: 158.742 ms.
Best time for 896K FFT length: 183.559 ms.
Best time for 1024K FFT length: 211.919 ms.
Best time for 1280K FFT length: 279.228 ms.
Best time for 1536K FFT length: 335.572 ms.
Best time for 1792K FFT length: 402.351 ms.

Now the new V24.6 in safe mode

Code:

AMD Athlon(tm) processor
CPU speed: 1128.92 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 24
L2 TLBS: 256
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 58.654 ms.
Best time for 640K FFT length: 81.064 ms.
Best time for 768K FFT length: 99.040 ms.
Best time for 896K FFT length: 121.605 ms.
Best time for 1024K FFT length: 135.980 ms.
Best time for 1280K FFT length: 177.290 ms.
Best time for 1536K FFT length: 209.383 ms.
Best time for 1792K FFT length: 254.494 ms.
Best time for 2048K FFT length: 282.304 ms.

Comparison

Code:

FFT	V22.1	V24.6 sm	% change
 512	102.5	 58.6		43
 640	129.2	 81.1		37
 768	158.7	 99.0		38
 896	183.6	121.6		34
1024	211.9	136.0		36
1280	279.2	177.3		36
1536	335.6	209.4		38
1792	402.4	254.5		37
			Avg.	37

Danath · 2004-12-25, 16:02

Celeron (Northwood) 2.4GHz @ 2.8GHz, chipset i865G (video-on-board), DDR 400MHz @ 311MHz

Intel(R) Celeron(R) CPU 2.40GHz
CPU speed: 2806.21 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 128 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.7, RdtscTiming=1
Best time for 384K FFT length: 19.329 ms.
Best time for 448K FFT length: 24.803 ms.
Best time for 512K FFT length: 32.872 ms.
Best time for 640K FFT length: 33.125 ms.
Best time for 768K FFT length: 40.236 ms.
Best time for 896K FFT length: 48.984 ms.
Best time for 1024K FFT length: 55.322 ms.
Best time for 1280K FFT length: 80.108 ms.
Best time for 1536K FFT length: 99.579 ms.
Best time for 1792K FFT length: 137.465 ms.
Best time for 2048K FFT length: 162.117 ms.

Intel(R) Celeron(R) CPU 2.40GHz
CPU speed: 2806.18 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 128 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 31.994 ms.
Best time for 640K FFT length: 31.768 ms.
Best time for 768K FFT length: 41.484 ms.
Best time for 896K FFT length: 46.763 ms.
Best time for 1024K FFT length: 52.918 ms.
Best time for 1280K FFT length: 80.034 ms.
Best time for 1536K FFT length: 101.632 ms.
Best time for 1792K FFT length: 134.529 ms.
Best time for 2048K FFT length: 161.108 ms.

kaeptn_kork · 2004-12-28, 16:16

Asus P4P800, RAM 192 MHz 2-2-2-5 DC

Intel(R) Pentium(R) 4 CPU 3.00GHz
CPU speed: 3600.77 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 9.890 ms.
Best time for 448K FFT length: 11.761 ms.
Best time for 512K FFT length: 13.348 ms.
Best time for 640K FFT length: 16.041 ms.
Best time for 768K FFT length: 19.508 ms.
Best time for 896K FFT length: 23.160 ms.
Best time for 1024K FFT length: 25.942 ms.
Best time for 1280K FFT length: 34.017 ms.
Best time for 1536K FFT length: 41.864 ms.
Best time for 1792K FFT length: 49.859 ms.
Best time for 2048K FFT length: 56.399 ms.

new version slightly slower on my machine:

Intel(R) Pentium(R) 4 CPU 3.00GHz
CPU speed: 3600.85 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 13.409 ms.
Best time for 640K FFT length: 16.000 ms.
Best time for 768K FFT length: 19.889 ms.
Best time for 896K FFT length: 23.393 ms.
Best time for 1024K FFT length: 26.156 ms.
Best time for 1280K FFT length: 34.041 ms.
Best time for 1536K FFT length: 42.975 ms.
Best time for 1792K FFT length: 50.143 ms.
Best time for 2048K FFT length: 56.739 ms.

patrik · 2005-02-19, 17:30

Following the discussion in this thread (about running one or two instances of Prime95) I did some benchmarks. The interesting ones are from my new 3.2 GHz Prescott. I also downclocked an overclocked Northwood 3.0 GHz to about 3.2 GHz for easy comparison.

The very interensting result is that for a hyperthreaded Prescott you get an overall performance gain by running two instances of Prime95, even when doing two Lucas-Lehmer tests. Furthermore, the benchmark then almost matches the Northwood.

The benchmarks below are the best times for three or four benchmarks.

1. Benchmark while DoubleCheck=13201703,64,1 running in the background.

Intel(R) Pentium(R) 4 CPU 3.20GHz
CPU speed: 3206.73 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 16 KB
L2 cache size: 1024 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.9, RdtscTiming=1
Best time for 384K FFT length: 22.869 ms.
Best time for 448K FFT length: 27.621 ms.
Best time for 512K FFT length: 30.467 ms.
Best time for 640K FFT length: 37.389 ms.
Best time for 768K FFT length: 45.457 ms.
Best time for 896K FFT length: 54.429 ms.
Best time for 1024K FFT length: 60.250 ms.
Best time for 1280K FFT length: 79.546 ms.
Best time for 1536K FFT length: 97.146 ms.
Best time for 1792K FFT length: 117.733 ms.
Best time for 2048K FFT length: 131.689 ms.
Best time for 2560K FFT length: 166.244 ms.
Best time for 3072K FFT length: 204.503 ms.
Best time for 3584K FFT length: 247.794 ms.
Best time for 4096K FFT length: 278.716 ms.

2. Benchmark while Test=27013621,67,1 running in the background.

Intel(R) Pentium(R) 4 CPU 3.20GHz
CPU speed: 3207.83 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 16 KB
L2 cache size: 1024 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.9, RdtscTiming=1
Best time for 384K FFT length: 22.850 ms.
Best time for 448K FFT length: 27.544 ms.
Best time for 512K FFT length: 30.459 ms.
Best time for 640K FFT length: 37.607 ms.
Best time for 768K FFT length: 45.587 ms.
Best time for 896K FFT length: 54.744 ms.
Best time for 1024K FFT length: 60.321 ms.
Best time for 1280K FFT length: 80.209 ms.
Best time for 1536K FFT length: 98.357 ms.
Best time for 1792K FFT length: 118.863 ms.
Best time for 2048K FFT length: 133.361 ms.
Best time for 2560K FFT length: 168.011 ms.
Best time for 3072K FFT length: 208.208 ms.
Best time for 3584K FFT length: 253.071 ms.
Best time for 4096K FFT length: 285.369 ms.

3. Benchmark when only one mprime client running.

Intel(R) Pentium(R) 4 CPU 3.20GHz
CPU speed: 3207.83 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 16 KB
L2 cache size: 1024 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.9, RdtscTiming=1
Best time for 384K FFT length: 12.799 ms.
Best time for 448K FFT length: 15.582 ms.
Best time for 512K FFT length: 17.519 ms.
Best time for 640K FFT length: 20.947 ms.
Best time for 768K FFT length: 25.195 ms.
Best time for 896K FFT length: 30.331 ms.
Best time for 1024K FFT length: 33.974 ms.
Best time for 1280K FFT length: 45.011 ms.
Best time for 1536K FFT length: 54.056 ms.
Best time for 1792K FFT length: 65.079 ms.
Best time for 2048K FFT length: 72.909 ms.
Best time for 2560K FFT length: 93.961 ms.
Best time for 3072K FFT length: 115.239 ms.
Best time for 3584K FFT length: 138.523 ms.
Best time for 4096K FFT length: 153.291 ms.

4. Reference Northwood benchmark (no speed improvement was made from v23.5 to v23.9 AFAIK)

Intel(R) Pentium(R) 4 CPU 3.00GHz
CPU speed: 3208.66 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.5, RdtscTiming=1
Best time for 384K FFT length: 11.321 ms.
Best time for 448K FFT length: 13.444 ms.
Best time for 512K FFT length: 15.293 ms.
Best time for 640K FFT length: 18.250 ms.
Best time for 768K FFT length: 22.253 ms.
Best time for 896K FFT length: 26.336 ms.
Best time for 1024K FFT length: 29.525 ms.
Best time for 1280K FFT length: 38.728 ms.
Best time for 1536K FFT length: 47.640 ms.
Best time for 1792K FFT length: 56.561 ms.
Best time for 2048K FFT length: 64.160 ms.
Best time for 2560K FFT length: 81.034 ms.
Best time for 3072K FFT length: 101.501 ms.
Best time for 3584K FFT length: 123.872 ms.
Best time for 4096K FFT length: 138.102 ms.

Hardware:
Pentium 4 3.20E GHz (Prescott core) 800 MHz system bus
ASUS P4P800S-X
Kingston KVR400X64C25/256 (single channel 400 MHz DDR)

Pentium 4 3.0 GHz (Northwood core) 800 MHz system bus
ASUS P4P800-E Deluxe
2xKingston KVR400X64C25/256 (dual channel 400 MHz DDR)
overclocked to 3.2 GHz (FSB214)

Edit: OS: Linux kernel 2.4.20-8smp, Red Hat Linux release 9 (Shrike)

ET_ · 2005-02-20, 12:25

Quote:

Originally Posted by patrik

Following the discussion in this thread (about running one or two instances of Prime95) I did some benchmarks. The interesting ones are from my new 3.2 GHz Prescott. I also downclocked an overclocked Northwood 3.0 GHz to about 3.2 GHz for easy comparison.

Did you try a comparison during factoring?

I've a 3.2 GHz Prescott where I run Prime95 and LLR.
I noticed a sudden slow of LLR as soon as I switched from double-check to factoring in Prime95.

The switching was motivated by another thread, where it was said that hyperthreading was useful if factoring and ll-testing were done together.

Luigi

geoff · 2005-02-20, 14:19

Quote:

Originally Posted by patrik

1. Benchmark while DoubleCheck=13201703,64,1 running in the background.

If you run two instances of mprime doing different tasks or even doing the same task using different FFT sizes, then one will take more of the total processor time than the other, so I don't think it will be possible to get an accurate benchmark this way. On one machine the mprime running the benchmark task might be faster just because the LL testing task is running slower.

Danath · 2005-02-20, 16:46

So it would be the best to run two regular LL tests simultaneously for some time (rather than one LL test and a benchmark), and then watch the average timings for this period of time (you need to set the "time between screen outputs" to some value, say 10-30 minutes).

Prime95 · 2005-02-20, 21:14

Quote:

Originally Posted by Danath

So it would be the best to run two regular LL tests simultaneously for some time (rather than one LL test and a benchmark).

I agree. The benchmark is not good because it returns the BEST time, where as a second LL test returns an AVERAGE time.

The danger with looking at the best time is that it can be easily skewed. If the OS swaps out the first LL test to run a thread that does some non-FPU work, then all of a sudden the benchmark gets a speed boost that will not be indicative of your average throughput in an LL test.

patrik · 2005-02-20, 21:33

Quote:

Originally Posted by ET_

Did you try a comparison during factoring?

I've a 3.2 GHz Prescott where I run Prime95 and LLR.
I noticed a sudden slow of LLR as soon as I switched from double-check to factoring in Prime95.

The switching was motivated by another thread, where it was said that hyperthreading was useful if factoring and ll-testing were done together.

Luigi

No, not for the Prescott, but I run 1 factoring + 1 LL-test on my two HT-capable Northwoods. It has been known for some time to give higher throughput than running them on separate computers.

The interesting point is that for Prescott two LL tests also give higher throughput. That is not the case for my Northwoods. My guess is that this applies to all Northwoods and Prescotts. Since most GIMPSters buy Northwoods we have believed that running two LL tests in parallel was always a bad thing. Just like I did until yesterday.

My timings seem to be roughly accurate for the 768K FFT length my LL-tests are running at for the moment. Then I get 0.026 s and 0.046 s iteration times for one or two clients running. (That's why I decided to do some benchmarks.) But one or two FFT levels might of course still be a bit off.

TauCeti · 2005-04-01, 06:05

Mainboard ECS-nForce4-A939, DDR-400:

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 1809.08 MHz
CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.11, RdtscTiming=1
Best time for 512K FFT length: 29.930 ms.
Best time for 640K FFT length: 37.258 ms.
Best time for 768K FFT length: 45.091 ms.
Best time for 896K FFT length: 54.571 ms.
Best time for 1024K FFT length: 60.653 ms.
Best time for 1280K FFT length: 80.412 ms.
Best time for 1536K FFT length: 98.028 ms.
Best time for 1792K FFT length: 118.198 ms.
Best time for 2048K FFT length: 131.602 ms.
[Fri Apr 01 07:57:33 2005]

Results from 23.5 Version:

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 1809.25 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 23.5, RdtscTiming=1
Best time for 384K FFT length: 23.853 ms.
Best time for 448K FFT length: 28.699 ms.
Best time for 512K FFT length: 32.122 ms.
Best time for 640K FFT length: 40.456 ms.
Best time for 768K FFT length: 49.149 ms.
Best time for 896K FFT length: 59.255 ms.
Best time for 1024K FFT length: 66.528 ms.
Best time for 1280K FFT length: 88.512 ms.
Best time for 1536K FFT length: 106.524 ms.
Best time for 1792K FFT length: 128.484 ms.
Best time for 2048K FFT length: 144.814 ms.

Jeff Gilchrist · 2005-04-01, 17:52

TauCeti, how does 24.6 compare as well in speed?

TauCeti · 2005-04-01, 18:29

I do only TF on my A64, so i never used 24.6 before. If you need more/other benchmarks, just drop a line...

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 1809.32 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 23.796 ms.
Best time for 448K FFT length: 28.631 ms.
Best time for 512K FFT length: 31.960 ms.
Best time for 640K FFT length: 40.412 ms.
Best time for 768K FFT length: 48.982 ms.
Best time for 896K FFT length: 58.961 ms.
Best time for 1024K FFT length: 66.275 ms.
Best time for 1280K FFT length: 88.329 ms.
Best time for 1536K FFT length: 105.977 ms.
Best time for 1792K FFT length: 128.341 ms.
Best time for 2048K FFT length: 144.325 ms.

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 1809.32 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 32.344 ms.
Best time for 640K FFT length: 40.449 ms.
Best time for 768K FFT length: 49.196 ms.
Best time for 896K FFT length: 59.287 ms.
Best time for 1024K FFT length: 66.484 ms.
Best time for 1280K FFT length: 88.567 ms.
Best time for 1536K FFT length: 106.343 ms.
Best time for 1792K FFT length: 128.518 ms.
Best time for 2048K FFT length: 144.893 ms.
[Fri Apr 01 20:05:29 2005]

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 1809.14 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 33.003 ms.
Best time for 640K FFT length: 44.065 ms.
Best time for 768K FFT length: 53.294 ms.
Best time for 896K FFT length: 64.741 ms.
Best time for 1024K FFT length: 72.098 ms.
Best time for 1280K FFT length: 94.982 ms.
Best time for 1536K FFT length: 113.497 ms.
Best time for 1792K FFT length: 136.471 ms.
Best time for 2048K FFT length: 151.474 ms.

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 1808.97 MHz
CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.11, RdtscTiming=1
Best time for 512K FFT length: 29.906 ms.
Best time for 640K FFT length: 37.193 ms.
Best time for 768K FFT length: 45.105 ms.
Best time for 896K FFT length: 54.600 ms.
Best time for 1024K FFT length: 60.659 ms.
Best time for 1280K FFT length: 80.405 ms.
Best time for 1536K FFT length: 98.117 ms.
Best time for 1792K FFT length: 118.071 ms.
Best time for 2048K FFT length: 131.648 ms.

Dresdenboy · 2005-04-04, 20:13

I have an A64 3000+ (2Ghz, 512kB L2, single channel RAM) with C0 stepping (unfortunately not the new E0-Stepping - several percent faster than 130nm steppings thanks to the core improvements).

Now the numbers:

Prime95 version 23.8

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 2002.45 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 23.8, RdtscTiming=1
Best time for 384K FFT length: 23.219 ms.
Best time for 448K FFT length: 27.941 ms.
Best time for 512K FFT length: 31.232 ms.
Best time for 640K FFT length: 39.588 ms.
Best time for 768K FFT length: 48.090 ms.
Best time for 896K FFT length: 58.028 ms.
Best time for 1024K FFT length: 65.605 ms.
Best time for 1280K FFT length: 87.466 ms.
Best time for 1536K FFT length: 104.623 ms.
Best time for 1792K FFT length: 127.425 ms.
Best time for 2048K FFT length: 143.992 ms.

Prime95 version 24.6:

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 2002.55 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.6, RdtscTiming=1
Best time for 512K FFT length: 31.568 ms.
Best time for 640K FFT length: 39.566 ms.
Best time for 768K FFT length: 48.178 ms.
Best time for 896K FFT length: 58.333 ms.
Best time for 1024K FFT length: 65.933 ms.
Best time for 1280K FFT length: 87.748 ms.
Best time for 1536K FFT length: 105.167 ms.
Best time for 1792K FFT length: 127.511 ms.
Best time for 2048K FFT length: 144.549 ms.

Prime95 version 24.11 (32 bit):

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 2002.89 MHz
CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.11, RdtscTiming=1
Best time for 512K FFT length: 28.314 ms.
Best time for 640K FFT length: 33.947 ms.
Best time for 768K FFT length: 40.932 ms.
Best time for 896K FFT length: 49.756 ms.
Best time for 1024K FFT length: 55.855 ms.
Best time for 1280K FFT length: 73.371 ms.
Best time for 1536K FFT length: 90.066 ms.
Best time for 1792K FFT length: 108.263 ms.
Best time for 2048K FFT length: 121.138 ms.
Best time for 58 bit trial factors: 6.010 ms.
Best time for 59 bit trial factors: 6.032 ms.
Best time for 60 bit trial factors: 6.003 ms.
Best time for 61 bit trial factors: 6.029 ms.
Best time for 62 bit trial factors: 10.961 ms.
Best time for 63 bit trial factors: 10.963 ms.
Best time for 64 bit trial factors: 13.932 ms.
Best time for 65 bit trial factors: 13.836 ms.
Best time for 66 bit trial factors: 13.849 ms.
Best time for 67 bit trial factors: 13.831 ms.

Prime95 version 24.11 (32 bit - no prefetching):

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 2002.59 MHz
CPU features: RDTSC, CMOV, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.11, RdtscTiming=1
Best time for 512K FFT length: 28.202 ms.
Best time for 640K FFT length: 33.791 ms.
Best time for 768K FFT length: 40.883 ms.
Best time for 896K FFT length: 49.690 ms.
Best time for 1024K FFT length: 55.278 ms.
Best time for 1280K FFT length: 73.254 ms.
Best time for 1536K FFT length: 89.828 ms.
Best time for 1792K FFT length: 107.797 ms.
Best time for 2048K FFT length: 120.921 ms.
Best time for 58 bit trial factors: 6.025 ms.
Best time for 59 bit trial factors: 6.031 ms.
Best time for 60 bit trial factors: 6.022 ms.
Best time for 61 bit trial factors: 6.034 ms.
Best time for 62 bit trial factors: 10.988 ms.
Best time for 63 bit trial factors: 11.008 ms.
Best time for 64 bit trial factors: 13.936 ms.
Best time for 65 bit trial factors: 13.850 ms.
Best time for 66 bit trial factors: 13.884 ms.
Best time for 67 bit trial factors: 13.805 ms.

Prime95 version 24.11 (64 bit):

AMD Athlon(tm) 64 Processor 3000+
CPU speed: 2002.99 MHz
CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 512
Prime95 version 24.11, RdtscTiming=1
Best time for 512K FFT length: 28.344 ms.
Best time for 640K FFT length: 34.008 ms.
Best time for 768K FFT length: 41.064 ms.
Best time for 896K FFT length: 49.705 ms.
Best time for 1024K FFT length: 55.251 ms.
Best time for 1280K FFT length: 73.524 ms.
Best time for 1536K FFT length: 90.159 ms.
Best time for 1792K FFT length: 108.715 ms.
Best time for 2048K FFT length: 121.390 ms.
Best time for 58 bit trial factors: 3.786 ms.
Best time for 59 bit trial factors: 3.782 ms.
Best time for 60 bit trial factors: 4.032 ms.
Best time for 61 bit trial factors: 4.140 ms.
Best time for 62 bit trial factors: 4.843 ms.
Best time for 63 bit trial factors: 5.643 ms.
Best time for 64 bit trial factors: 6.816 ms.
Best time for 65 bit trial factors: 8.007 ms.
Best time for 66 bit trial factors: 7.951 ms.
Best time for 67 bit trial factors: 7.934 ms.

2004-11-13, 19:36	#151
RickC Mar 2003 45₁₀ Posts	Prescott Benchmark Dell Dimension 8400 Prescott P4 530 3Ghz with HT enabled 800Mhz FSB 1GB DDR2 533Mhz SDRAM Memory timings 4-4-4-11 Intel(R) Pentium(R) 4 CPU 3.00GHz CPU speed: 2992.62 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: unknown L2 cache size: 1024 KB L1 cache line size: unknown L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 13.496 ms. Best time for 448K FFT length: 16.435 ms. Best time for 512K FFT length: 18.520 ms. Best time for 640K FFT length: 22.103 ms. Best time for 768K FFT length: 26.495 ms. Best time for 896K FFT length: 32.001 ms. Best time for 1024K FFT length: 35.678 ms. Best time for 1280K FFT length: 47.433 ms. Best time for 1536K FFT length: 56.837 ms. Best time for 1792K FFT length: 68.142 ms. Best time for 2048K FFT length: 75.934 ms.

2004-12-08, 23:18	#154
call_apple Nov 2002 Ashburn, Va. 3·7 Posts	Cpu One ====================================================== Old: AMD Athlon(TM) MP 2200+ CPU speed: 1800.15 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 256 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 256 Prime95 version 23.3, RdtscTiming=1 Best time for 384K FFT length: 41.519 ms. Best time for 448K FFT length: 47.322 ms. Best time for 512K FFT length: 52.143 ms. Best time for 640K FFT length: 66.722 ms. Best time for 768K FFT length: 81.191 ms. Best time for 896K FFT length: 94.903 ms. Best time for 1024K FFT length: 109.538 ms. Best time for 1280K FFT length: 143.869 ms. Best time for 1536K FFT length: 173.316 ms. Best time for 1792K FFT length: 207.672 ms. Best time for 2048K FFT length: 233.781 ms. New: AMD Athlon(TM) MP 2200+ CPU speed: 1800.17 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 256 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 256 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 39.208 ms. Best time for 640K FFT length: 52.837 ms. Best time for 768K FFT length: 64.023 ms. Best time for 896K FFT length: 77.936 ms. Best time for 1024K FFT length: 86.933 ms. Best time for 1280K FFT length: 121.610 ms. Best time for 1536K FFT length: 144.434 ms. Best time for 1792K FFT length: 173.274 ms. Best time for 2048K FFT length: 195.461 ms. Cpu Two ========================================================== Old: AMD Athlon(TM) MP 2200+ CPU speed: 1800.17 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 256 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 256 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 42.440 ms. Best time for 448K FFT length: 49.725 ms. Best time for 512K FFT length: 55.982 ms. Best time for 640K FFT length: 69.025 ms. Best time for 768K FFT length: 86.266 ms. Best time for 896K FFT length: 102.657 ms. Best time for 1024K FFT length: 118.855 ms. Best time for 1280K FFT length: 161.338 ms. Best time for 1536K FFT length: 187.211 ms. Best time for 1792K FFT length: 234.243 ms. Best time for 2048K FFT length: 272.827 ms. New: AMD Athlon(TM) MP 2200+ CPU speed: 1799.98 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 256 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 256 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 37.970 ms. Best time for 640K FFT length: 51.516 ms. Best time for 768K FFT length: 65.473 ms. Best time for 896K FFT length: 76.852 ms. Best time for 1024K FFT length: 84.473 ms. Best time for 1280K FFT length: 121.307 ms. Best time for 1536K FFT length: 148.918 ms. Best time for 1792K FFT length: 170.046 ms. Best time for 2048K FFT length: 196.279 ms. Last fiddled with by call_apple on 2004-12-08 at 23:25

2004-12-14, 02:31	#156
db597 Jan 2003 7×29 Posts	P4 560 LGA775 Results for P4 560 LGA775 cpu overclocked to 3.5GHz (using dual channel DDR2 533MHz memory). CPU is the Prescott D0 stepping. Operating system used is Linux Fedora Core 3 on the v2.6.9 SMP kernel. The cpu is totally stable, and I can even overclock to 3.6+GHz. But when running Prime95, the temperature soon nears 80 degrees.... something I'm not too comfortable with. Once over the 3.5GHz mark, temperature increases exponentially. I've capped the overclock to 3.5GHz - temp is just a tad under 70 degrees using stock cooling. ----------------------------------------- Intel(R) Pentium(R) 4 CPU 3.20GHz CPU speed: 3498.11 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: unknown L2 cache size: 1024 KB L1 cache line size: unknown L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.5, RdtscTiming=1 Best time for 384K FFT length: 11.793 ms. Best time for 448K FFT length: 14.393 ms. Best time for 512K FFT length: 16.170 ms. Best time for 640K FFT length: 19.264 ms. Best time for 768K FFT length: 23.014 ms. Best time for 896K FFT length: 27.900 ms. Best time for 1024K FFT length: 31.025 ms. Best time for 1280K FFT length: 41.291 ms. Best time for 1536K FFT length: 49.396 ms. Best time for 1792K FFT length: 59.506 ms. Best time for 2048K FFT length: 66.311 ms. Best time for 2560K FFT length: 86.558 ms. Best time for 3072K FFT length: 106.501 ms. Best time for 3584K FFT length: 127.698 ms. Best time for 4096K FFT length: 141.639 ms. Last fiddled with by db597 on 2004-12-14 at 02:39

2005-02-19, 17:30	#166
patrik "Patrik Johansson" Aug 2002 Uppsala, Sweden 5²·17 Posts	Prescotts almost matching Northwoods? Following the discussion in this thread (about running one or two instances of Prime95) I did some benchmarks. The interesting ones are from my new 3.2 GHz Prescott. I also downclocked an overclocked Northwood 3.0 GHz to about 3.2 GHz for easy comparison. The very interensting result is that for a hyperthreaded Prescott you get an overall performance gain by running two instances of Prime95, even when doing two Lucas-Lehmer tests. Furthermore, the benchmark then almost matches the Northwood. The benchmarks below are the best times for three or four benchmarks. 1. Benchmark while DoubleCheck=13201703,64,1 running in the background. Intel(R) Pentium(R) 4 CPU 3.20GHz CPU speed: 3206.73 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 16 KB L2 cache size: 1024 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.9, RdtscTiming=1 Best time for 384K FFT length: 22.869 ms. Best time for 448K FFT length: 27.621 ms. Best time for 512K FFT length: 30.467 ms. Best time for 640K FFT length: 37.389 ms. Best time for 768K FFT length: 45.457 ms. Best time for 896K FFT length: 54.429 ms. Best time for 1024K FFT length: 60.250 ms. Best time for 1280K FFT length: 79.546 ms. Best time for 1536K FFT length: 97.146 ms. Best time for 1792K FFT length: 117.733 ms. Best time for 2048K FFT length: 131.689 ms. Best time for 2560K FFT length: 166.244 ms. Best time for 3072K FFT length: 204.503 ms. Best time for 3584K FFT length: 247.794 ms. Best time for 4096K FFT length: 278.716 ms. 2. Benchmark while Test=27013621,67,1 running in the background. Intel(R) Pentium(R) 4 CPU 3.20GHz CPU speed: 3207.83 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 16 KB L2 cache size: 1024 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.9, RdtscTiming=1 Best time for 384K FFT length: 22.850 ms. Best time for 448K FFT length: 27.544 ms. Best time for 512K FFT length: 30.459 ms. Best time for 640K FFT length: 37.607 ms. Best time for 768K FFT length: 45.587 ms. Best time for 896K FFT length: 54.744 ms. Best time for 1024K FFT length: 60.321 ms. Best time for 1280K FFT length: 80.209 ms. Best time for 1536K FFT length: 98.357 ms. Best time for 1792K FFT length: 118.863 ms. Best time for 2048K FFT length: 133.361 ms. Best time for 2560K FFT length: 168.011 ms. Best time for 3072K FFT length: 208.208 ms. Best time for 3584K FFT length: 253.071 ms. Best time for 4096K FFT length: 285.369 ms. 3. Benchmark when only one mprime client running. Intel(R) Pentium(R) 4 CPU 3.20GHz CPU speed: 3207.83 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 16 KB L2 cache size: 1024 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.9, RdtscTiming=1 Best time for 384K FFT length: 12.799 ms. Best time for 448K FFT length: 15.582 ms. Best time for 512K FFT length: 17.519 ms. Best time for 640K FFT length: 20.947 ms. Best time for 768K FFT length: 25.195 ms. Best time for 896K FFT length: 30.331 ms. Best time for 1024K FFT length: 33.974 ms. Best time for 1280K FFT length: 45.011 ms. Best time for 1536K FFT length: 54.056 ms. Best time for 1792K FFT length: 65.079 ms. Best time for 2048K FFT length: 72.909 ms. Best time for 2560K FFT length: 93.961 ms. Best time for 3072K FFT length: 115.239 ms. Best time for 3584K FFT length: 138.523 ms. Best time for 4096K FFT length: 153.291 ms. 4. Reference Northwood benchmark (no speed improvement was made from v23.5 to v23.9 AFAIK) Intel(R) Pentium(R) 4 CPU 3.00GHz CPU speed: 3208.66 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.5, RdtscTiming=1 Best time for 384K FFT length: 11.321 ms. Best time for 448K FFT length: 13.444 ms. Best time for 512K FFT length: 15.293 ms. Best time for 640K FFT length: 18.250 ms. Best time for 768K FFT length: 22.253 ms. Best time for 896K FFT length: 26.336 ms. Best time for 1024K FFT length: 29.525 ms. Best time for 1280K FFT length: 38.728 ms. Best time for 1536K FFT length: 47.640 ms. Best time for 1792K FFT length: 56.561 ms. Best time for 2048K FFT length: 64.160 ms. Best time for 2560K FFT length: 81.034 ms. Best time for 3072K FFT length: 101.501 ms. Best time for 3584K FFT length: 123.872 ms. Best time for 4096K FFT length: 138.102 ms. Hardware: Pentium 4 3.20E GHz (Prescott core) 800 MHz system bus ASUS P4P800S-X Kingston KVR400X64C25/256 (single channel 400 MHz DDR) Pentium 4 3.0 GHz (Northwood core) 800 MHz system bus ASUS P4P800-E Deluxe 2xKingston KVR400X64C25/256 (dual channel 400 MHz DDR) overclocked to 3.2 GHz (FSB214) Edit: OS: Linux kernel 2.4.20-8smp, Red Hat Linux release 9 (Shrike) Last fiddled with by patrik on 2005-02-19 at 17:33

2005-04-01, 06:05	#172
TauCeti Mar 2003 Braunschweig, Germany 342₈ Posts	New Beta 24.11 with Athlon64 (W32/32 bit) Mainboard ECS-nForce4-A939, DDR-400: AMD Athlon(tm) 64 Processor 3000+ CPU speed: 1809.08 MHz CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.11, RdtscTiming=1 Best time for 512K FFT length: 29.930 ms. Best time for 640K FFT length: 37.258 ms. Best time for 768K FFT length: 45.091 ms. Best time for 896K FFT length: 54.571 ms. Best time for 1024K FFT length: 60.653 ms. Best time for 1280K FFT length: 80.412 ms. Best time for 1536K FFT length: 98.028 ms. Best time for 1792K FFT length: 118.198 ms. Best time for 2048K FFT length: 131.602 ms. [Fri Apr 01 07:57:33 2005] Results from 23.5 Version: AMD Athlon(tm) 64 Processor 3000+ CPU speed: 1809.25 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 23.5, RdtscTiming=1 Best time for 384K FFT length: 23.853 ms. Best time for 448K FFT length: 28.699 ms. Best time for 512K FFT length: 32.122 ms. Best time for 640K FFT length: 40.456 ms. Best time for 768K FFT length: 49.149 ms. Best time for 896K FFT length: 59.255 ms. Best time for 1024K FFT length: 66.528 ms. Best time for 1280K FFT length: 88.512 ms. Best time for 1536K FFT length: 106.524 ms. Best time for 1792K FFT length: 128.484 ms. Best time for 2048K FFT length: 144.814 ms.

2004-11-17, 01:04	#152
Xyzzy "Mike" Aug 2002 20065₈ Posts	Dell Dimension 3000 2.8GHz Prescott with 1MB L2 cache 2x256MB dual channel PC3200 @ PC2700 (533MHz FSB) CAS 2.5-3-3-7 No HT, PAT enabled Onboard integrated graphics (I added a PCI video card but the times were the same!) Intel(R) Pentium(R) 4 CPU 2.80GHz CPU speed: 2792.91 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: unknown L2 cache size: 1024 KB L1 cache line size: unknown L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 14.153 ms. Best time for 448K FFT length: 17.207 ms. Best time for 512K FFT length: 19.421 ms. Best time for 640K FFT length: 22.937 ms. Best time for 768K FFT length: 27.816 ms. Best time for 896K FFT length: 33.254 ms. Best time for 1024K FFT length: 37.036 ms. Best time for 1280K FFT length: 49.127 ms. Best time for 1536K FFT length: 59.320 ms. Best time for 1792K FFT length: 70.765 ms. Best time for 2048K FFT length: 79.966 ms. Best time for 2560K FFT length: 101.899 ms. Best time for 3072K FFT length: 127.414 ms. Best time for 3584K FFT length: 151.838 ms. Best time for 4096K FFT length: 169.765 ms.

2004-12-05, 09:51	#153
Pconfig Jun 2004 5×11 Posts	Precott 550 CPU on LGA775 1024mb DDR2 ram 225*17 = 3825 MHz Intel(R) Pentium(R) 4 CPU 3.40GHz CPU speed: 3825.20 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: unknown L2 cache size: 1024 KB L1 cache line size: unknown L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 10.609 ms. Best time for 448K FFT length: 12.911 ms. Best time for 512K FFT length: 14.638 ms. Best time for 640K FFT length: 17.431 ms. Best time for 768K FFT length: 20.925 ms. Best time for 896K FFT length: 25.299 ms. Best time for 1024K FFT length: 28.172 ms. Best time for 1280K FFT length: 37.391 ms. Best time for 1536K FFT length: 44.654 ms. Best time for 1792K FFT length: 53.613 ms. Best time for 2048K FFT length: 59.840 ms.

2004-12-13, 22:44	#155
Arthanis Dec 2004 2²·3 Posts	AMD Athlon(tm) XP 2800+ CPU speed: 2104.25 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 256 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 32.000 ms. Best time for 448K FFT length: 37.268 ms. Best time for 512K FFT length: 39.828 ms. Best time for 640K FFT length: 52.321 ms. Best time for 768K FFT length: 62.694 ms. Best time for 896K FFT length: 74.428 ms. Best time for 1024K FFT length: 83.805 ms. Best time for 1280K FFT length: 112.444 ms. Best time for 1536K FFT length: 130.893 ms. Best time for 1792K FFT length: 162.407 ms. Best time for 2048K FFT length: 175.045 ms. [Sat Dec 11 19:57:26 2004] Sorry for ask, isnt mine too low for a Athlon XP barton 2800 +? I f it is, what can I do to improve it?

2004-12-14, 08:51	#158
Arthanis Dec 2004 1100₂ Posts	Oh, thank you, I will try that

2004-12-14, 09:00	#159
Arthanis Dec 2004 2²×3 Posts	Wherer do I find it? It isnt in theDownload section...

2004-12-14, 09:17	#160
ET_ Banned "Luigi" Aug 2002 Team Italia 61·79 Posts	http://www.mersenne.org/gimps/p95v246.zip Luigi

2004-12-16, 00:14	#161
E_tron Sep 2002 Austin, TX 3×11×17 Posts	Whoa, there's a new version? That helps Athlons?!!! I stopped checking like a year ago.

2004-12-25, 16:02	#164
Danath May 2003 Republic of Moldova 2³·5 Posts	Celeron (Northwood) 2.4GHz @ 2.8GHz, chipset i865G (video-on-board), DDR 400MHz @ 311MHz Intel(R) Celeron(R) CPU 2.40GHz CPU speed: 2806.21 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 128 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.7, RdtscTiming=1 Best time for 384K FFT length: 19.329 ms. Best time for 448K FFT length: 24.803 ms. Best time for 512K FFT length: 32.872 ms. Best time for 640K FFT length: 33.125 ms. Best time for 768K FFT length: 40.236 ms. Best time for 896K FFT length: 48.984 ms. Best time for 1024K FFT length: 55.322 ms. Best time for 1280K FFT length: 80.108 ms. Best time for 1536K FFT length: 99.579 ms. Best time for 1792K FFT length: 137.465 ms. Best time for 2048K FFT length: 162.117 ms. Intel(R) Celeron(R) CPU 2.40GHz CPU speed: 2806.18 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 128 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 31.994 ms. Best time for 640K FFT length: 31.768 ms. Best time for 768K FFT length: 41.484 ms. Best time for 896K FFT length: 46.763 ms. Best time for 1024K FFT length: 52.918 ms. Best time for 1280K FFT length: 80.034 ms. Best time for 1536K FFT length: 101.632 ms. Best time for 1792K FFT length: 134.529 ms. Best time for 2048K FFT length: 161.108 ms.

2004-12-28, 16:16	#165
kaeptn_kork Sep 2002 2³·3 Posts	Asus P4P800, RAM 192 MHz 2-2-2-5 DC Intel(R) Pentium(R) 4 CPU 3.00GHz CPU speed: 3600.77 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 9.890 ms. Best time for 448K FFT length: 11.761 ms. Best time for 512K FFT length: 13.348 ms. Best time for 640K FFT length: 16.041 ms. Best time for 768K FFT length: 19.508 ms. Best time for 896K FFT length: 23.160 ms. Best time for 1024K FFT length: 25.942 ms. Best time for 1280K FFT length: 34.017 ms. Best time for 1536K FFT length: 41.864 ms. Best time for 1792K FFT length: 49.859 ms. Best time for 2048K FFT length: 56.399 ms. new version slightly slower on my machine: Intel(R) Pentium(R) 4 CPU 3.00GHz CPU speed: 3600.85 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 13.409 ms. Best time for 640K FFT length: 16.000 ms. Best time for 768K FFT length: 19.889 ms. Best time for 896K FFT length: 23.393 ms. Best time for 1024K FFT length: 26.156 ms. Best time for 1280K FFT length: 34.041 ms. Best time for 1536K FFT length: 42.975 ms. Best time for 1792K FFT length: 50.143 ms. Best time for 2048K FFT length: 56.739 ms.

2005-02-20, 16:46	#169
Danath May 2003 Republic of Moldova 2³·5 Posts	So it would be the best to run two regular LL tests simultaneously for some time (rather than one LL test and a benchmark), and then watch the average timings for this period of time (you need to set the "time between screen outputs" to some value, say 10-30 minutes).

2005-04-01, 17:52	#173
Jeff Gilchrist Jun 2003 Ottawa, Canada 3·17·23 Posts	TauCeti, how does 24.6 compare as well in speed?

2005-04-01, 18:29	#174
TauCeti Mar 2003 Braunschweig, Germany 342₈ Posts	23.8 / 24.6 / 24.11 on my A64-3000+ Winnie / DDR400 I do only TF on my A64, so i never used 24.6 before. If you need more/other benchmarks, just drop a line... AMD Athlon(tm) 64 Processor 3000+ CPU speed: 1809.32 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 23.796 ms. Best time for 448K FFT length: 28.631 ms. Best time for 512K FFT length: 31.960 ms. Best time for 640K FFT length: 40.412 ms. Best time for 768K FFT length: 48.982 ms. Best time for 896K FFT length: 58.961 ms. Best time for 1024K FFT length: 66.275 ms. Best time for 1280K FFT length: 88.329 ms. Best time for 1536K FFT length: 105.977 ms. Best time for 1792K FFT length: 128.341 ms. Best time for 2048K FFT length: 144.325 ms. AMD Athlon(tm) 64 Processor 3000+ CPU speed: 1809.32 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 32.344 ms. Best time for 640K FFT length: 40.449 ms. Best time for 768K FFT length: 49.196 ms. Best time for 896K FFT length: 59.287 ms. Best time for 1024K FFT length: 66.484 ms. Best time for 1280K FFT length: 88.567 ms. Best time for 1536K FFT length: 106.343 ms. Best time for 1792K FFT length: 128.518 ms. Best time for 2048K FFT length: 144.893 ms. [Fri Apr 01 20:05:29 2005] AMD Athlon(tm) 64 Processor 3000+ CPU speed: 1809.14 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 33.003 ms. Best time for 640K FFT length: 44.065 ms. Best time for 768K FFT length: 53.294 ms. Best time for 896K FFT length: 64.741 ms. Best time for 1024K FFT length: 72.098 ms. Best time for 1280K FFT length: 94.982 ms. Best time for 1536K FFT length: 113.497 ms. Best time for 1792K FFT length: 136.471 ms. Best time for 2048K FFT length: 151.474 ms. AMD Athlon(tm) 64 Processor 3000+ CPU speed: 1808.97 MHz CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.11, RdtscTiming=1 Best time for 512K FFT length: 29.906 ms. Best time for 640K FFT length: 37.193 ms. Best time for 768K FFT length: 45.105 ms. Best time for 896K FFT length: 54.600 ms. Best time for 1024K FFT length: 60.659 ms. Best time for 1280K FFT length: 80.405 ms. Best time for 1536K FFT length: 98.117 ms. Best time for 1792K FFT length: 118.071 ms. Best time for 2048K FFT length: 131.648 ms.

2005-04-04, 20:13	#175
Dresdenboy Apr 2003 Berlin, Germany 169₁₆ Posts	23.8 / 24.6 / 24.11 (32/64bit) on my A64-3000+ (orig. Sledgehammer core)/DDR400CL2.5 I have an A64 3000+ (2Ghz, 512kB L2, single channel RAM) with C0 stepping (unfortunately not the new E0-Stepping - several percent faster than 130nm steppings thanks to the core improvements). Now the numbers: Prime95 version 23.8 AMD Athlon(tm) 64 Processor 3000+ CPU speed: 2002.45 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 23.8, RdtscTiming=1 Best time for 384K FFT length: 23.219 ms. Best time for 448K FFT length: 27.941 ms. Best time for 512K FFT length: 31.232 ms. Best time for 640K FFT length: 39.588 ms. Best time for 768K FFT length: 48.090 ms. Best time for 896K FFT length: 58.028 ms. Best time for 1024K FFT length: 65.605 ms. Best time for 1280K FFT length: 87.466 ms. Best time for 1536K FFT length: 104.623 ms. Best time for 1792K FFT length: 127.425 ms. Best time for 2048K FFT length: 143.992 ms. Prime95 version 24.6: AMD Athlon(tm) 64 Processor 3000+ CPU speed: 2002.55 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.6, RdtscTiming=1 Best time for 512K FFT length: 31.568 ms. Best time for 640K FFT length: 39.566 ms. Best time for 768K FFT length: 48.178 ms. Best time for 896K FFT length: 58.333 ms. Best time for 1024K FFT length: 65.933 ms. Best time for 1280K FFT length: 87.748 ms. Best time for 1536K FFT length: 105.167 ms. Best time for 1792K FFT length: 127.511 ms. Best time for 2048K FFT length: 144.549 ms. Prime95 version 24.11 (32 bit): AMD Athlon(tm) 64 Processor 3000+ CPU speed: 2002.89 MHz CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.11, RdtscTiming=1 Best time for 512K FFT length: 28.314 ms. Best time for 640K FFT length: 33.947 ms. Best time for 768K FFT length: 40.932 ms. Best time for 896K FFT length: 49.756 ms. Best time for 1024K FFT length: 55.855 ms. Best time for 1280K FFT length: 73.371 ms. Best time for 1536K FFT length: 90.066 ms. Best time for 1792K FFT length: 108.263 ms. Best time for 2048K FFT length: 121.138 ms. Best time for 58 bit trial factors: 6.010 ms. Best time for 59 bit trial factors: 6.032 ms. Best time for 60 bit trial factors: 6.003 ms. Best time for 61 bit trial factors: 6.029 ms. Best time for 62 bit trial factors: 10.961 ms. Best time for 63 bit trial factors: 10.963 ms. Best time for 64 bit trial factors: 13.932 ms. Best time for 65 bit trial factors: 13.836 ms. Best time for 66 bit trial factors: 13.849 ms. Best time for 67 bit trial factors: 13.831 ms. Prime95 version 24.11 (32 bit - no prefetching): AMD Athlon(tm) 64 Processor 3000+ CPU speed: 2002.59 MHz CPU features: RDTSC, CMOV, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.11, RdtscTiming=1 Best time for 512K FFT length: 28.202 ms. Best time for 640K FFT length: 33.791 ms. Best time for 768K FFT length: 40.883 ms. Best time for 896K FFT length: 49.690 ms. Best time for 1024K FFT length: 55.278 ms. Best time for 1280K FFT length: 73.254 ms. Best time for 1536K FFT length: 89.828 ms. Best time for 1792K FFT length: 107.797 ms. Best time for 2048K FFT length: 120.921 ms. Best time for 58 bit trial factors: 6.025 ms. Best time for 59 bit trial factors: 6.031 ms. Best time for 60 bit trial factors: 6.022 ms. Best time for 61 bit trial factors: 6.034 ms. Best time for 62 bit trial factors: 10.988 ms. Best time for 63 bit trial factors: 11.008 ms. Best time for 64 bit trial factors: 13.936 ms. Best time for 65 bit trial factors: 13.850 ms. Best time for 66 bit trial factors: 13.884 ms. Best time for 67 bit trial factors: 13.805 ms. Prime95 version 24.11 (64 bit): AMD Athlon(tm) 64 Processor 3000+ CPU speed: 2002.99 MHz CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 512 Prime95 version 24.11, RdtscTiming=1 Best time for 512K FFT length: 28.344 ms. Best time for 640K FFT length: 34.008 ms. Best time for 768K FFT length: 41.064 ms. Best time for 896K FFT length: 49.705 ms. Best time for 1024K FFT length: 55.251 ms. Best time for 1280K FFT length: 73.524 ms. Best time for 1536K FFT length: 90.159 ms. Best time for 1792K FFT length: 108.715 ms. Best time for 2048K FFT length: 121.390 ms. Best time for 58 bit trial factors: 3.786 ms. Best time for 59 bit trial factors: 3.782 ms. Best time for 60 bit trial factors: 4.032 ms. Best time for 61 bit trial factors: 4.140 ms. Best time for 62 bit trial factors: 4.843 ms. Best time for 63 bit trial factors: 5.643 ms. Best time for 64 bit trial factors: 6.816 ms. Best time for 65 bit trial factors: 8.007 ms. Best time for 66 bit trial factors: 7.951 ms. Best time for 67 bit trial factors: 7.934 ms. Last fiddled with by Dresdenboy on 2005-04-04 at 20:22

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