From: Ramon Hofer <ramonhofer@bluewin.ch>
To: Peter Sangas <pete@wnsdev.com>, linux-raid@vger.kernel.org
Subject: Re: "bitmap" line in /proc/mdstat
Date: Fri, 14 Oct 2016 18:29:46 +0200 [thread overview]
Message-ID: <580107FA.40901@bluewin.ch> (raw)
In-Reply-To: <003401d22635$32b7bc70$98273550$@wnsdev.com>
On 14/10/16 18:08, Peter Sangas wrote:
> Can you quantify the performance decrease and if rebuild time is not as important as performance how does one remove the bitmap?
From the Linux RAID wiki:
"Some limited measurements I have done suggest up to 10% slowdown,
though usually less. Possibly some tuning can make it much better." [1]
[1]
https://raid.wiki.kernel.org/index.php/Write-intent_bitmap#How_Bitmaps_Work_by_Q.26A
Regards,
Ramon
next prev parent reply other threads:[~2016-10-14 16:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 10:06 "bitmap" line in /proc/mdstat Ramon Hofer
2016-10-14 11:53 ` Phil Turmel
2016-10-14 12:32 ` Ramon Hofer
2016-10-14 13:59 ` Ramon Hofer
2016-10-14 14:10 ` Andreas Klauer
2016-10-14 14:23 ` Ramon Hofer
2016-10-14 16:08 ` Peter Sangas
2016-10-14 16:29 ` Ramon Hofer [this message]
2016-10-14 17:32 ` Peter Sangas
2016-10-14 17:38 ` Ramon Hofer
2016-10-14 17:43 ` Andreas Klauer
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