Messages in this thread | | | Date | Thu, 18 Feb 2010 10:29:07 +0100 | From | Andi Kleen <> | Subject | Re: [PATCH] x86 rwsem optimization extreme |
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On Wed, Feb 17, 2010 at 10:24:58PM -1000, Zachary Amsden wrote: >> >> Zachary Amsden<zamsden@redhat.com> writes >>> Incidentally, the cost of putting all the rwsem code inline, using the >>> straightforward approach, for git-tip, using defconfig on x86_64 is >>> 3565 bytes / 20971778 bytes total, or 0.0168%, using gcc 4.4.3. >>> >> The nice advantage of putting lock code inline is that it gets >> accounted to the caller in all profilers. >> >> -Andi >> >> > > Unfortunately, only for the uncontended case. The hot case still ends up > in a call to the lock text section.
I removed those some time ago because it breaks unwinding. Did that get undone?
-Andi -- ak@linux.intel.com -- Speaking for myself only.
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