Messages in this thread | | | Date | Wed, 19 Nov 2008 13:43:12 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 |
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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!
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