* Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx> wrote: > On Mon, 17 Nov 2008, Ingo Molnar wrote: > > > Christoph, as per the recent analysis of Mike: > > > > http://fixunix.com/kernel/556867-regression-benchmark-throughput-loss-a622cf6-f7160c7-pull.html > > > > all scheduler components of this regression have been eliminated. > > > > In fact his numbers show that scheduler speedups since 2.6.22 have > > offset and hidden most other sources of tbench regression. (i.e. the > > scheduler portion got 5% faster, hence it was able to offset a > > slowdown of 5% in other areas of the kernel that tbench triggers) > > Ok will rerun the tests tomorrow. Just got back from SC08 need some > time to catch up. > > Looks like a lot of work was done on this issue. Thanks! You might also want to try net-next: [remote "net-next"] url = git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6.git fetch = +refs/heads/*:refs/remotes/net-next/* Some good stuff is in there too, impacting this workload. Ingo -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html