Messages in this thread | | | Date | Mon, 13 Apr 2009 19:41:04 +0200 | From | Ingo Molnar <> | Subject | Re: mmotm 2009-04-10-02-21 uploaded - forkbombed by work_for_cpu |
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* Andrew Morton <akpm@linux-foundation.org> wrote:
> > I think Andrew has a stack of fixes queued up, one of which > > should solve this problem too - which Mike tested - as the > > commit from Andrew has caused another regression as well. > > > > There's no sha1 - the patch is in this thread on lkml: > > > > sysbench(oltp)+mysql 10% regression with 2.6.30-rc1 > > > > | From: Andrew Morton <akpm@linux-foundation.org> > > | > > | Atttempting to rid us of the problematic work_on_cpu(). Just use > > | smp_call_fuction_single() here. > > | > > | This repairs a 10% sysbench(oltp)+mysql regression which Mike > > | reported, > > > > Yup. It's presently in Len's hands. And Rusty's. > > Vladis, perhaps you can verify?
I have not tested it but it looks good and the use of a much more atomic primitive can only improve the situation - so unless there's something suspicious about it i'd suggest for Linus to pick this up from email, before -rc2.
Acked-by: Ingo Molnar <mingo@elte.hu>
Ingo
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