From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ramon Hofer <ramonhofer@bluewin.ch>
Subject: Re: "bitmap" line in /proc/mdstat
Date: Fri, 14 Oct 2016 18:29:46 +0200
Message-ID: <580107FA.40901@bluewin.ch>
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To: Peter Sangas <pete@wnsdev.com>, linux-raid@vger.kernel.org
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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