On Sat, May 12, 2012 at 11:04 PM, Jim Meyering <jim@xxxxxxxxxxxx> wrote: > Josh Boyer wrote: > >> On Mon, May 7, 2012 at 8:43 AM, Jim Meyering <jim@xxxxxxxxxxxx> wrote: >>> Today I noticed that some tests from coreutils' test suite >>> were taking far longer than they used to on rawhide. >>> For example, run this command in an empty directory: >>> >>> seq 200000|env time xargs touch >>> >>> it takes < 5s on F17 3.3.4-1.fc17.x86_64 ext4/sdb8/SSD, yet >>> it takes 47s on rawhide 3.4.0-0.rc5.git5.1.fc18.x86_64 ext4/vda1/SSD >>> >>> 10x performance hit... ouch. >>> >>> Does anyone know why? >> >> Rawhide has all the kernel debug options turned on. It isn't >> worthwhile doing a comparison when those are enabled. You could try >> again with the first -rc6 build that shows up, as that will have the >> options disabled. > > Hi Josh, > > I've just rerun the test with 3.4.0-0.rc6.git1.1.fc18.x86_64, This one has debug options enabled; 3.4.0-0.rc6.git0.1 is the one without debug options. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
