On Mon, Sep 08, 2008 at 10:02:30AM -0400, Chris Mason wrote: > On Mon, 2008-09-08 at 15:54 +0200, Andi Kleen wrote: > > > The idea is to try to spin for a bit to avoid scheduling away, which is > > > especially important for the high levels. Most holders of the mutex > > > let it go very quickly. > > > > Ok but that surely should be implemented in the general mutex code then > > or at least in a standard adaptive mutex wrapper? > > That depends, am I the only one crazy enough to think its a good idea?
Adaptive mutexes are classic, a lot of other OS have it. Gregory et.al. also saw big improvements in the RT kernel (they posted a patchkit a few times) But a lot of people don't like them for some reason. Anyways hiding them in a fs is probably wrong. -Andi -- [EMAIL PROTECTED] -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
