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Re: Why is it so damn slow ?
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From: |
Richard Braun |
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Subject: |
Re: Why is it so damn slow ? |
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Date: |
Sun, 2 Dec 2012 11:27:23 +0100 |
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User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Sun, Dec 02, 2012 at 11:15:08AM +0100, Richard Braun wrote:
> the port to pthreads), I noticed that much of the time spent by the CPU
> is actually wasted for two major reasons.
I didn't emphasize enough that, contrary to "popular" belief, the main
bottleneck is _CPU_ time (well, the suboptimal VM cache implies more I/O
of course, but there can't be more performance than what we have on
virtual machines with optimal host page cache).
--
Richard Braun