RE: syscall exit path optimization

David Mosberger
2005-01-27T23:50:42Z

>>>>> On Thu, 27 Jan 2005 15:44:42 -0800, "Chen, Kenneth W" <kenneth.w.chen@intel.com> said:

Ken> David Mosberger wrote on Wednesday, January 26, 2005 1:31 PM
>> Couldn't you restore r8/r10 after .work_pending is done in if
>> pLvSys is TRUE? That way, .work_processed would simply preserve
>> (save _and_ restore) r8/r10.

Ken> Thank you for reviewing and the suggestion. Here is the
Ken> updated patch, net saving for 6 cycles compares to 4 with
Ken> earlier version.

Tidy _and_ faster---not bad at all for a net change of one extra line!

Good work.

--david