On Tue, Jan 29, 2013 at 02:53:53PM -0600, Bruno Wolff III wrote: > I have just done some updates while running 3.8.0-0.rc5.git0.1.fc19. > A couple of these machines were booted with slub_debug=- . They all > seemed a bit slower (based on my watching the updates and not real > benchmarks) than with Yeah, I had some noticable lag with 3.8.0-0.rc5.git1.1.fc19, which has identical debug options set to the kernel you mentioned. (Rawhide didn't go out yesterday, so I waited to turn more on). When I booted with slub_debug=- the lag was less, but still noticable. Seems CONFIG_PROVE_RCU might be a heavy hitter. We'll see going forward. I plan on enabling atomic sleep debugging today. Please keep up the testing and reporting everyone. It's much appreciated. josh _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel