[Bug 460014] New: phoronix sqlite test slowness
https://bugzilla.novell.com/show_bug.cgi?id=460014 Summary: phoronix sqlite test slowness Product: openSUSE 11.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: dmueller@novell.com QAContact: qa@suse.de Found By: --- http://www.phoronix.com/scan.php?page=article&item=intel_atom_four&num=1 describes a particular slowness with opensuse that I can reproduce on a standard laptop as well. my timings are: kernel-default-2.6.27.8-1.1 / ext3: 1348s kernel-default-2.6.27.8-1.1 / ext3 barrier=0: 437s kernel-vanilla-2.6.27.8-1.1 / ext3: 139s -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User dmueller@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c1 --- Comment #1 from Dirk Mueller <dmueller@novell.com> 2008-12-17 17:35:16 MST --- just download the phoronix-test-suite tarball, extract and run: "./phoronix-test-suite benchmark sqlite" We might want to package it and run it as part of some regression testing.. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User aj@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c2 Andreas Jaeger <aj@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aj@novell.com AssignedTo|bnc-team-screening@forge.provo.novell.com |kernel-maintainers@forge.provo.novell.com Severity|Normal |Major --- Comment #2 from Andreas Jaeger <aj@novell.com> 2008-12-17 23:21:32 MST --- This is a regression against the upstream kernel. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 Jeff Mahoney <jeffm@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|kernel-maintainers@forge.provo.novell.com |jack@novell.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User jack@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c3 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Priority|P5 - None |P3 - Medium --- Comment #3 from Jan Kara <jack@novell.com> 2009-01-07 03:48:06 MST --- Looking into the problem (along with other performance problems we observe with Berkeley DB on SLES11). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User jack@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c4 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO Info Provider| |dmueller@novell.com --- Comment #4 from Jan Kara <jack@novell.com> 2009-01-07 07:48:05 MST --- Hmm, what kind of machine do you have (CPU, memory, disk, filesystem)? I've tried both on my test machine (i586) and desktop (x86_84) and I see no difference between barrier=0 and vanilla results. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User dmueller@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c5 Dirk Mueller <dmueller@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED Info Provider|dmueller@novell.com | --- Comment #5 from Dirk Mueller <dmueller@novell.com> 2009-01-07 08:48:03 MST --- intel core2duo (p8400), 3gb ram, 500GB disk (70MB/s linear performance), ext3, x86_64. I can try replicating them further. which kernel should I try? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User jack@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c6 --- Comment #6 from Jan Kara <jack@novell.com> 2009-01-07 09:52:28 MST --- I was testing KOTD (default vs vanilla) from SL11.1 branch so maybe if you could recheck with that one. Thanks. I also didn't see any difference on lapbox.suse.cz which is some 2 CPU x86_64 Intel machine with 2GB ram, linear disk throughput ~30MB/s and that seems fairly comparable to what you write. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User jack@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c7 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO Info Provider| |dmueller@novell.com --- Comment #7 from Jan Kara <jack@novell.com> 2009-01-12 04:09:14 MST --- Dirk, could you try replicating the results as you suggested in Comment #5? Also please boot the kernel with cgroup_disable=memory. Cgroups is one of the differences between -default config -vanilla config and they have significant impact on performance in some benchmarks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User jack@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c8 --- Comment #8 from Jan Kara <jack@novell.com> 2009-01-21 08:30:53 MST --- And one other suggestion - could you set cpufreq governor to "performance" for benchmarking? Thanks. BTW: Any ETA when you could get to running the test (or I can run it myself if you give me access to the machine)? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User dmueller@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c11 --- Comment #11 from Dirk Mueller <dmueller@novell.com> 2009-02-13 08:46:38 MST --- timing with sle11 rc4 (2.6.27.15) kernel-default: 1045s timing with sle11 rc4 (2.6.27.15) kernel-vanilla: 113s barrier=0 doesn't make a difference (same timing) most likely because it doesn't seem to be parsed (it still says barrier=1 in /proc/mounts) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User dmueller@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c12 Dirk Mueller <dmueller@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED Info Provider|dmueller@novell.com | --- Comment #12 from Dirk Mueller <dmueller@novell.com> 2009-02-13 08:51:13 MST --- booting -default with barrier=0 gives 113s, so no slowdown compared to -vanilla anymore. that means the drastic slowdown is meanwhile only caused by the different barrier default. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=460014 User jack@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=460014#c14 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |INVALID --- Comment #14 from Jan Kara <jack@novell.com> 2009-02-17 01:52:51 MST --- Thanks for testing! Great to hear that you see the same results as me :). It's a bit strange that remounting without barriers doesn't work for you. I can remount my root filesystem like "mount -o remount,barrier=0 /" just fine (and /proc/mounts is changed accordingly). Anyway, I'm closing the bug (as INVALID since in the end this is expected behavior). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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