Thread: High CPU usage
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Old 2020-03-18, 23:45   #3
phillipsjk
 
Nov 2019

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If you have a multi-core CPU you can tell the software to only use less that all of them. This may make your productivity software more responsive.


The effect may be larger on CPUs without a unified cache. I got a big web-browsing speed up by telling mprime to stay away from one of my 4 L2 caches (by using only 6 of 8 cores, and using processor affinity).


Edit: Normally, prime95 is supposed to jump out of the way when you want to use the CPU. In practice, the cache gets evicted, limiting you to memory bandwidth and latency.

Last fiddled with by phillipsjk on 2020-03-18 at 23:49
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