On Thu, Jun 15, 2000 at 01:23:56AM +0100, stalking mode mentioned:
> > Just wondering whether anyone has real experience of running
> > Linux on a 4- or 8- way Xeon system. Any gotchas? Does
> > performance scale well with CPUs?
>> No experience.
> From reading stuff in the past it appears as though the 2.2
> kernel does not scale well past 2 cpus (even 2?). This is one of
> the areas that 2.4 should improve on.
Nah, it seems to work well on 4 CPUs, and "acceptable" on 6. On 6, you
are only getting about 60% of the CPU in extra performance. On 2.4, the
network code is completely scaleible, as is the low-level disk code. There
are small issues with the filesystem, and "misc" drivers, but it should
scale acceptably on a 16-way system, for average load. Again, if you have
a user-mode application that uses loads of CPU, and isn't I/O bound, even
freeBSD scales sufficently for your needs.
Kate
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