From: Christoph Nelles <evilazrael@evilazrael.de>
To: dm-devel@redhat.com
Subject: DM-Cache Writeback & Direct IO?
Date: Wed, 08 Jul 2015 11:03:42 +0200 [thread overview]
Message-ID: <559CE76E.6020504@evilazrael.de> (raw)
Hi,
Can the dm-cache writeback cache buffer direct IO or goes direct IO
always immediately to the origin device?
I am currently performing tests and see that random direct write IO
never hits the cache, even after overwriting the same region over and over.
Kind Regards
Christoph Nelles
next reply other threads:[~2015-07-08 9:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 9:03 Christoph Nelles [this message]
2015-07-08 14:48 ` DM-Cache Writeback & Direct IO? Joe Thornber
2015-07-09 16:51 ` Christoph Nelles
2015-07-21 13:51 ` Christoph Nelles
[not found] <9E0DEE10BA62134F89BB5A513CA84BC3A1A6B5CA@MAILSERVER01.trt9a.local>
[not found] ` <CAEZ+n-j_9QGWi7pdZY71VAmF-tnuRWb_8neWBd3iKMTm-yQU1A@mail.gmail.com>
2015-07-08 17:55 ` Leonardo Santos
2015-07-09 15:51 ` Christoph Nelles
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