Messages in this thread | | | Date | Tue, 20 Sep 2005 07:12:48 -0700 (PDT) | From | Danial Thom <> | Subject | Re: Quick update on latest Linux kernel performance |
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--- "Chen, Kenneth W" <kenneth.w.chen@intel.com> wrote:
> New performance result are posted on > http://kernel-perf.sourceforge.net > with latest data collected on kernel > 2.6.13-git9. > > Kernel-build bench are fairly stable over the > last 14 kernel versions > or so. It was consistently 3-5% better on > x86_64 over baseline 2.6.9 > kernel. It showed a lot smaller gain on ia64 > though. > > Java business benchmark showed very little > change in performance on all > kernel versions. > > Volanomark took some heavy performance hit > during 2.6.12-rc* period, but > come back in 2.6.13 on x86_64 configuration. > Though latest 2.6.13-git9 > showed a little bit perf. regression. > > Netperf is showing wildly result, especially > the 1-byte request/response > component. Overall, UDP portion Of the netperf > are showing nice improvement > over baseline 2.6.9 kernel. > > Industry standard transaction processing > database workload still suffering > 13% performance regression with 2.6.13. (data > will be posted in a separate mail) > > Take a look at the performance data. Comments > and suggestions are always > welcome and please post them to LKML.
Does it still drop packets when only running at 15% utilization?
Did you run data streams through the box while doing these tests? There's a difference between gaining performance in a benchmark and just shifting performance from one activity to another. If the latter is the case, then there's been no progress at all. I keep seeing all these great benchmark results, and linux keeps dropping more and more packets as the versions increase. Its become practically unusable as a specialized networking appliance.
Danial
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