Messages in this thread | | | Date | Wed, 16 Apr 2008 01:29:21 +0800 | From | "rae l" <> | Subject | Re: iowait stability regressed from kernel 2.6.22 under heavy load of multi-thread aio writing/reading |
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On Tue, Apr 15, 2008 at 9:37 PM, Jeff Moyer <jmoyer@redhat.com> wrote: > > "rae l" <crquan@gmail.com> writes: [...] > > Why doesn't bisecting work? Can you provide your test code so others > can verify your findings? just small C programs that use multi pthread aio_write, will be pasted soon,
> > > by the way, a question is how to guarantee a kernel not regress under > > heavy multi-thread aio writing load? ltp project seems not give the > > answer: > > Well, providing your test code would be a step closer to achieving this > guarantee. If it is scriptable, then there is a chance we could > integrate it into the aio-dio regression test suite: > > http://git.kernel.org/?p=linux/kernel/git/zab/aio-dio-regress.git;a=summary this aio-dio-regress.git seems to use linux native aio system-call interface(shipped with libaio) only? but the POSIX aio (shipped with librt) implemented with pthread and pwrite system-call tests can also be added, the librt is the most cases when refered to aio.
However, the test code will come soon.
-- Denis
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