linux-ext4 - [Bug 20902] High IO wait when writing to ext4

lists.openwall.net		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]

Message-Id: <201011240314.oAO3E8wS005828@demeter1.kernel.org>
Date:	Wed, 24 Nov 2010 03:14:08 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 20902] High IO wait when writing to ext4

https://bugzilla.kernel.org/show_bug.cgi?id=20902





--- Comment #16 from Justin Maggard <jmaggard10@...il.com>  2010-11-24 03:14:05 ---
Created an attachment (id=38002)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=38002)
blktrace showing initial write slowness

Here's mine.  My test case is mount, sleep 5, then do 10 x 128MB writes using
dd to the just-mounted filesystem.  The first 128MB write took over 20 seconds.
 Unfortunately I don't have access any more to the box where it took 150
seconds.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
--
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