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Message-ID: <484024EF.7080304@redhat.com> Date: Fri, 30 May 2008 11:01:51 -0500 From: Eric Sandeen <sandeen@...hat.com> To: Valerie Clement <valerie.clement@...l.net> CC: ext4 development <linux-ext4@...r.kernel.org>, Mingming Cao <cmm@...ibm.com>, "Jose R. Santos" <jrs@...ibm.com> Subject: Re: Test results for ext4 Valerie Clement wrote: > Hi all, > > Since a couple of weeks, I did batches of tests to have some performance > numbers for the new ext4 features like uninit_groups, flex_bg or > journal_checksum on a 5TB filesystem. > I tried to test allmost all combinations of mkfs and mount options, but > I put only a subset of them in the result tables, the most significant > for me. > > I had started to do these tests on a kernel 2.6.26-rc1, but I'd got several > hangs and crashes occuring randomly outside ext4, sometimes in the slab > code or in the scsi driver eg., and which were not reproductible. > Since 2.6.26-rc2, no crash or hang occur with ext4 on my system. > > The first results and the test description are available here: > http://www.bullopensource.org/ext4/20080530/ffsb-write-2.6.26-rc2.html > http://www.bullopensource.org/ext4/20080530/ffsb-readwrite-2.6.26-rc2.html To be fair in your comparisons with xfs, you should probably either turn barriers off for xfs, or on for ext[34], just FWIW. -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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