On Tue, Aug 08, 2000 at 09:51:49AM -0700, Zack Brown wrote:
> Someone asked me how Linux had improved from 2.2 to 2.4 in terms of the
> number of CPUs it could handle at the maximum, and the number it was best
> suited for. I grepped through the archives and the sources, but no luck.
As always, it will depend on the exact workload. For example if you have
a set of processes which do nothing but apply and remove posix locks to
files, I can assure you it's one CPU only. On the other hand, if you're
doing webserving, I think http://www.spec.org/osg/web99/results/res2000q2/
tells its own story about Linux's scalability. Oooh!
I hadn't noticed before but Dell posted a new one for Q3:
http://www.spec.org/osg/web99/results/res2000q3/web99-20000710-00057.asc
which manages to score almost double the next highest (non-TUX) score.
Management overview of Linux scalability at webserving:
CPU Score Scaling
1 1270 100%
2 2200 86.6%
4 4200 82.7%
8 6387 62.9%
Management overview of NT scalability at webserving:
CPU Score Scaling
1 732 100%
4 1598 54.6%
so it can be argued that Linux scales to 8 CPUs better than NT scales
to 4 CPUs. Have a look at the site yourself for all the `this is a
benchmark it is only a benchmark, share prices may go down as well as
up, may contain nuts' disclaimers, but the benchmarks were conducted on
identical hardware, as far as I can see.
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This archive was generated by hypermail 2b29 : Tue Aug 15 2000 - 21:00:18 EST