http://bugzilla.novell.com/show_bug.cgi?id=631296 http://bugzilla.novell.com/show_bug.cgi?id=631296#c0 Summary: xfs very slow compared to ext3 Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: x86-64 OS/Version: openSUSE 11.2 Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: martin@oneiros.de QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=383015) --> (http://bugzilla.novell.com/attachment.cgi?id=383015) archive with test set User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.2.8) Gecko/20100723 SUSE/3.6.8-1.3 Firefox/3.6.8 I have a workload which on a fs with ext3 takes 2 seconds, while on a fs with xfs it takes 62 seconds. The test unjars some jars with ant twice; the second run of unjar is much slower on xfs then on ext3. How do I get xfs to be as fast as ext3? Reproducible: Always Steps to Reproduce: 1. Install ant and java, create an ext3 and an xfs fs (e.g. with yast), I tested with a size of 1GB 2. unpack the attached tar.gz on each fs 3. for every fs: cd test && sync && ant clean && ant && ant Actual Results: xfs: Total time: 1 minute 2 seconds ext3: Total time: 2 seconds Expected Results: The times should be the same on both partitions. I tried to tune the xfs fs and mount, but got no improvements. I testet with meta-data=/dev/mapper/system-xfs isize=256 agcount=8, agsize=32768 blks = sectsz=512 attr=2 data = bsize=4096 blocks=262144, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 and mounted with /dev/mapper/system-xfs on /space/tmp/mnt/xfs type xfs (rw,allocsize=1MB,attr2,barrier,noikeep,largeio,logbufs=8,logbsize=64k) -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.