From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Thu, 27 Jan 2005 23:50:42 +0000 Subject: RE: syscall exit path optimization Message-Id: <16889.32338.355622.505299@napali.hpl.hp.com> List-Id: References: <200501262102.j0QL2Qg28166@unix-os.sc.intel.com> In-Reply-To: <200501262102.j0QL2Qg28166@unix-os.sc.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Thu, 27 Jan 2005 15:44:42 -0800, "Chen, Kenneth W" 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