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    SubjectRe: 2.6.9-rc1-mm1
    On Friday 27 of August 2004 23:54, Rick Lindsley wrote:
    > > Rafael, what baseline release are you comparing to? I should be able
    > > to provide some tools to measure the effect on updatedb directly for
    > > both 2.6.9-rc1 and your baseline (so long as it's 2.6-based)
    >, for example. I'd like to compate it with the 2.6.9-rc1-mm1,
    > which contains the Nick's scheduler (2.6.9-rc1 has the same scheduler as
    >, AFAIK).
    > Okay. A schedstats patch for is available at
    > or
    > You can also pick up the program "latency.c" at
    > With these two things in hand, you should be able to measure the latency
    > on of a particular process.
    > A patch is not necessary for 2.6.9-rc1-mm1 (schedstats is already in there)
    > but you will need to config the kernel to use it. Then retrieve a slightly
    > different latency.c:
    > since 2.6.9-rc1-mm1 output format is different (as you noted, it's a
    > different scheduler.) Then you should be able to see if the latency of
    > a particular process (updatedb, for instance) changes.

    Thanks a lot Rick, I'll give it a try tomorrow.


    For a successful technology, reality must take precedence over public
    relations, for nature cannot be fooled.
    -- Richard P. Feynman
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