On Sat, 2011-09-10 at 12:06 -0500, Mike Chambers wrote: > On Sat, 2011-09-10 at 12:42 +0200, Michael Schwendt wrote: > > On Fri, 9 Sep 2011 15:46:21 -0400, DJ (Dave) wrote: > > > > > you can turn off some of the heavier weight debugging by booting > > > the 3.0 kernels with "slub_debug=-" > > > (In the 2.6.40 builds, this is only on in the -debug flavor) > > > > > > Debugging options are going to be turned off for the next builds > > > in time for the beta. > > > > Based on first impressions, this option makes a difference. At least > > for the "xterm -e mc" resize test, under the assumption that I've not > > made a typo when adding this in GRUB2 command-line. > > > > Together with the workaround from clutter bug 720605, Claws Mail also > > no longer suffers from missing subject lines in its Folder Summary View. > > > > Additionally, I've yet to see the "vertical scrollbar repeat effect" > > where a single mouse-click moves up/down more than 1 page as if the > > button is stuck. > > So, is the kernel you tested with debugging off, one built from Fedora > or a custom one? Which version, > kernel-3.1.0-0.rc5.git0.0.fc16.x86_64.rpm? I think Michael was testing the "slub_debug=-" parameter. In the bug report, I noted that I recompiled rc5 with debugging disabled and it does indeed clear up all the performance problems. Seems like the debugging overhead got a lot heavier between 3.0 and 3.1, so you really see the sluggishness in 3.1 kernels. See https://bugzilla.redhat.com/show_bug.cgi?id=735268 for the numbers. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora http://www.happyassassin.net -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
