mersenneforum.org why is http://www.mersenne.org/ so slow
 Register FAQ Search Today's Posts Mark Forums Read

 2012-04-14, 18:47 #1 Unregistered   2·232 Posts why is http://www.mersenne.org/ so slow I burn a lot of CPU cycles for GIMPS, but I am disgusted with the speed of the http://www.mersenne.org/ pages. Unfair standard when you want speed from our computers!
2012-04-14, 20:27   #2
xilman
Bamboozled!

"𒉺𒌌𒇷𒆷𒀭"
May 2003
Down not across

2×3×29×67 Posts

Quote:
 Originally Posted by Unregistered I burn a lot of CPU cycles for GIMPS, but I am disgusted with the speed of the http://www.mersenne.org/ pages. Unfair standard when you want speed from our computers!
Almost always works well for me. Sometimes slow, mostly not.

 2012-04-14, 21:04 #3 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2×11×457 Posts No, the OP does have a point - especially in the first minutes of every hour (and we know why). Every once in a while, one can even get the coveted "pnErrorResult=3 pnErrorDetail=Database unavailable ==END==" result, frame it and put it on the wall to adore.
 2012-04-14, 21:18 #4 Dubslow Basketry That Evening!     "Bunslow the Bold" Jun 2011 40
2012-04-14, 21:24   #5
chalsall
If I May

"Chris Halsall"
Sep 2002

2·72·113 Posts

Quote:
 Originally Posted by Batalov No, the OP does have a point - especially in the first minutes of every hour (and we know why). Every once in a while, one can even get the coveted "pnErrorResult=3 pnErrorDetail=Database unavailable ==END==" result, frame it and put it on the wall to adore.
But the OP has a point which should be considered...

Why does PrimeNet sometimes give the "Database unavailable" error message later in the hour, when it's not busy doing summary queries? Or, take a really long time to answer simple queries? Like, for example, it is doing right now.

Resource starvation anyone?

Since PrimeNet is running on WinBlows, wouldn't it make sense to automate a daily reboot?

2012-04-14, 21:34   #6
chalsall
If I May

"Chris Halsall"
Sep 2002

255028 Posts

Quote:
 Originally Posted by Dubslow If you're willing to fund moving the server to more powerful hardware, and/or moving it to some sort of LAMP setup, we'd love to see it .
And let us please identify the elephant in the room...

After GIMPS won $100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened. 2012-04-14, 21:38 #7 Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 11100001101012 Posts Quote:  Originally Posted by chalsall And let us please identify the elephant in the room... After GIMPS won$100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened.
...But like I said, we're a volunteer effort; more to the point, just about everyone here either has a day job and little spare time, or is not capable of re-creating the server in the LAMP environment. (I fall into the second category )
Quote:
 Originally Posted by chalsall Like, for example, it is doing right now.
I just found out what you meant :/

I gave it 30 seconds and hadn't even gotten HTTP headers back as a response.

Last fiddled with by Dubslow on 2012-04-14 at 21:41

2012-04-14, 23:49   #8
petrw1
1976 Toyota Corona years forever!

"Wayne"
Nov 2006

52×211 Posts

Quote:
 Originally Posted by chalsall Why does PrimeNet sometimes give the "Database unavailable" error message later in the hour, when it's not busy doing summary queries?
I had assumed (admittedly without a shred of proof - though it did afford me some comfort believing it) that these were the time our bigger users were doing large results/updates/reservations

2012-04-14, 23:52   #9
petrw1
1976 Toyota Corona years forever!

"Wayne"
Nov 2006

149B16 Posts

Quote:
 Originally Posted by chalsall And let us please identify the elephant in the room... After GIMPS won $100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened. There were a couple posts from George a good year ago on this topic. I vaguely remember it had something to do with George and Scott still trying to come to terms. 2012-04-15, 10:00 #10 ET_ Banned "Luigi" Aug 2002 Team Italia 3·1,619 Posts Quote:  Originally Posted by chalsall And let us please identify the elephant in the room... After GIMPS won$100,000, there was a promise that Mersenne.org would be upgraded to a modern hardware / software platform. To the best of my knowledge, this hasn't happened.
Last year some of us contributed a small money donation to GIMPS, but AFAIK, they are still at 3% of the projected goal.

Luigi

2012-04-15, 15:10   #11

"Richard B. Woods"
Aug 2002
Wisconsin USA

22×3×641 Posts

Quote:
 Originally Posted by chalsall But the OP has a point which should be considered... Why does PrimeNet sometimes give the "Database unavailable" error message later in the hour, when it's not busy doing summary queries? Or, take a really long time to answer simple queries? Like, for example, it is doing right now.
I, too, started noticing a few days ago that responses from mersenne.org were slow even when not in the first 7-8 minutes of each hour.

 Similar Threads Thread Thread Starter Forum Replies Last Post joblack Information & Answers 28 2010-03-24 22:13 Unregistered Information & Answers 3 2009-01-07 14:28 petrw1 PrimeNet 0 2007-09-07 20:28 petrw1 PrimeNet 2 2007-03-21 12:28 nngs PrimeNet 4 2007-01-29 06:59

All times are UTC. The time now is 23:05.

Wed Feb 1 23:05:03 UTC 2023 up 167 days, 20:33, 0 users, load averages: 1.03, 0.98, 1.01