Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: Clear performance regression on reaim7 in 2.6.15-git6 | From | OGAWA Hirofumi <> | Date | Sun, 16 Apr 2006 07:56:34 +0900 |
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Andrew Morton <akpm@osdl.org> writes:
> "Martin J. Bligh" <mbligh@google.com> wrote: >> >> drilling down into the results directories can get you the command line, >> looks like "reaim -f workfile.short -s 1 -e 10 -i 2" to me. Buggered if >> I can recall what that did though. >> >> (http://test.kernel.org/abat/20229/004.reaim.test/results/cmdline) >> >> I *think* it's only ia32 NUMA boxes, at least as far as I can see from >> a quick poke around. Which would make me guess at scheduler code. Gitweb >> would be nice to use, but it doesn't tag the -git snapshots, AFAICS, >> which is a real shame. Nor does the git snapshot include the git tag, >> as far as I know. Grrrr. I guess I'll download the snapshots and diff >> them, and try to pull out the sched changes by hand. Much suckage. > > The diffstat for 2.6.15-git5 -> 2.6.15-git6 is at > http://www.zip.com.au/~akpm/linux/patches/stuff/2 - only a single line > changed in sched.c: > > diff -uNr 2.6.15-git5/kernel/sched.c 2.6.15-git6/kernel/sched.c > --- 2.6.15-git5/kernel/sched.c 2006-04-15 14:10:43.000000000 -0700 > +++ 2.6.15-git6/kernel/sched.c 2006-04-15 14:10:52.000000000 -0700 > @@ -4386,6 +4386,7 @@ > } while_each_thread(g, p); > > read_unlock(&tasklist_lock); > + mutex_debug_show_all_locks(); > } > > /** > > The below patches went from -mm into mainline on that day. It'll be pretty > simple to bisection search these once we have a testcase.
config DEBUG_MUTEXES bool "Mutex debugging, deadlock detection" default y depends on DEBUG_KERNEL help This allows mutex semantics violations and mutex related deadlocks (lockups) to be detected and reported automatically.
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By default, it's y, so it seems likely. -- OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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