From: Roman Mamedov <rm@romanrm.net>
To: d tbsky <tbskyd@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: disk initialize priority
Date: Thu, 13 Apr 2017 14:37:36 +0500 [thread overview]
Message-ID: <20170413143736.5ac148d0@natsu> (raw)
In-Reply-To: <CAC6SzHJAM-AbCiK7rqhgk4CJcyZ4C-yW0kt_rr3hgk+F-WMCiQ@mail.gmail.com>
On Thu, 13 Apr 2017 16:13:41 +0800
d tbsky <tbskyd@gmail.com> wrote:
> in past the disk initialize
> speed will down to slow speed when there are other disk IO, but it
> seems not the case in rhel 7.3.
It was changed some time ago with:
"md: allow resync to go faster when there is competing IO"
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ac8fa4196d205ac8fff3f8932bddbad4f16e4110
and a problem like you describe has been reported:
https://www.spinics.net/lists/raid/msg51363.html
Some patches have been discussed, but apparently there is no fix for it up to
this day, as the current code in question looks the same as in the above patch.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/md/md.c#n8138
--
With respect,
Roman
next prev parent reply other threads:[~2017-04-13 9:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-13 8:13 disk initialize priority d tbsky
2017-04-13 9:09 ` Reindl Harald
2017-04-13 9:44 ` d tbsky
2017-04-13 9:47 ` Reindl Harald
2017-04-13 9:58 ` d tbsky
2017-04-13 10:05 ` Reindl Harald
2017-04-13 10:05 ` Roman Mamedov
2017-04-13 10:25 ` d tbsky
2017-04-13 10:34 ` Roman Mamedov
2017-04-13 10:38 ` d tbsky
2017-04-13 17:44 ` Stephane Thiell
2017-04-13 9:37 ` Roman Mamedov [this message]
2017-04-13 9:56 ` d tbsky
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