Re: 2.2.5 optimizations for web benchmarks?

Greg Lindahl (lindahl@cs.virginia.edu)
Thu, 29 Apr 1999 19:58:31 -0400 (EDT)

> > If I recall correctly, the Sybase folks described this as a major win
> > across many OSes. On the other hand, Apache in particular may not
> > access enough memory to make a huge difference.
>
> Remember, this is TLB flushes, not cache flushes, we're talking about.

Yes. If Apache isn't accessing that much memory, it doesn't take that
many TLB reloads no matter how often it is flushed. It's only when
you're repeatedly accessing many TLB entries that it's critical to not
flush.

i.e. high pressure on TLB, more damage from a flush.

-- g

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