From mboxrd@z Thu Jan 1 00:00:00 1970 From: compudj@krystal.dyndns.org (Mathieu Desnoyers) Date: Tue, 3 Feb 2009 14:18:47 -0500 Subject: [ltt-dev] LTTng 0.91 optimizes data copy primitives Message-ID: <20090203191847.GA27522@Krystal> Hi, I just released LTTng 0.91 in which I've had a 20% performance increase when tracing in flight recorder mode when compiling a kernel by creating an inlined optimized (memcpy-less for 1, 2, 4, and 8 bytes) fast path for the low-level data copy primitive. Here is the commit : http://git.kernel.org/?p=linux/kernel/git/compudj/linux-2.6-lttng.git;a=commit;h=5bb4bb6814709fd35bcefcd460da3c66b0f639fb Mathieu -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68