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Re: [Qemu-devel] [Qemu-block] [PATCH 6/7] qemu-iotests: 141: reduce like


From: Sascha Silbe
Subject: Re: [Qemu-devel] [Qemu-block] [PATCH 6/7] qemu-iotests: 141: reduce likelihood of race condition on systems with fast IO
Date: Fri, 08 Apr 2016 15:46:20 +0200
User-agent: Notmuch/0.19+1~g6b3e223 (http://notmuchmail.org) Emacs/24.3.1 (x86_64-pc-linux-gnu)

Dear Kevin,

Kevin Wolf <address@hidden> writes:

> Am 08.04.2016 um 14:01 hat Sascha Silbe geschrieben:
[...]
>> The best approach probably would be to fix up the rate limit code to
>> delay for multiple time slices if necessary. We should get rid of the
>> artificial BDRV_SECTOR_SIZE granularity at the same time, always using
>> bytes as the quantum unit.
>
> In the 2.7 time frame we might actually be able to reuse the normal I/O
> throttling code for block jobs as the jobs will be using their own
> BlockBackend and can therefore set their own throttling limits.

Sounds good. Then I suggest we just drop this patch for now. I've added
a reminder to check the situation again at the end of June (i.e. before
soft feature freeze of 2.7).

Will give documenting the minimum rate a try, but that shouldn't hold up
the fixes.

Sascha
-- 
Softwareentwicklung Sascha Silbe, Niederhofenstra├če 5/1, 71229 Leonberg
https://se-silbe.de/
USt-IdNr. DE281696641




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