[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Bug-gnubg] How many threads can gnubg (reliably) handle?
From: |
Michael Petch |
Subject: |
Re: [Bug-gnubg] How many threads can gnubg (reliably) handle? |
Date: |
Thu, 10 Sep 2009 17:41:32 -0600 |
User-agent: |
Microsoft-Entourage/12.20.0.090605 |
On 10/09/09 4:33 PM, "Ingo Macherius" <address@hidden> wrote:
> My benchmarks with 4 cores showed that the cache brings about 10% improvement
This is interesting. I ran some benchmarks (In my Message to phillipe) for a
cache of 21mb that was testing the variation on threads above number of
cores.
I just ran the same 10 trials (8 threads on 8 cores, 0 cache, Linux Priority
-19)
And got this results :
8 thread, 0mb cache, 10 trials : 44.83 (seconds) mean, Std Dev of .18
8 thread, 21mb cache, 10 trials : 28.05 (seconds) mean, Std Dev of .12
Cache make a big difference in this case. A speed improvement of about 60%.
I don't consider 60% insignificant and is well beyond 10% you were getting.
I find that curious.
Re: [Bug-gnubg] How many threads can gnubg (reliably) handle?, Jonathan Kinsey, 2009/09/11
Re: [Bug-gnubg] How many threads can gnubg (reliably) handle?, Jonathan Kinsey, 2009/09/12