Messages in this thread |  | | | Date | Wed, 16 Jun 2004 13:05:33 +1000 | | From | Nick Piggin <> | | Subject | Re: [PATCH] Performance regression in 2.6.7-rc3 |
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Herbert Xu wrote: > Martin J. Bligh <mbligh@aracnet.com> wrote: > >>How the hell can that have any effect on non-threaded workloads? Perhaps >>some part of kernel compile *is* multi-threaded. It does seem to get > > > make(1) with vfork(2) perhaps?
I think balance on clone probably needs to be turned off by default presently.
It slows down a simple thread creation test by a factor of 7(!) here, and has quite a few not too difficult to imagine performance problems.
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