lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sat, 31 May 2008 14:35:13 -0500
From:	Eric Sandeen <>
To:	Valerie Clement <>
CC:	ext4 development <>,
	Mingming Cao <>,
	"Jose R. Santos" <>
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:

One other question on the tests; am I reading correctly that ext3 used
"data=writeback" but ext4 used the default data=ordered mode?

To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists