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Re: [Qemu-devel] [PATCH v3] block: Switch to host monotonic clock for IO
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From: |
Alberto Garcia |
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Subject: |
Re: [Qemu-devel] [PATCH v3] block: Switch to host monotonic clock for IO throttling |
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Date: |
Wed, 25 Mar 2015 08:16:23 +0100 |
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User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Wed, Mar 25, 2015 at 10:42:32AM +0800, Fam Zheng wrote:
> Block jobs are confusingly inconsistent between with and without
> throttling: if user sets a bps limit, starts a block job, then stops
> vm, the block job will not make any progress; in contrary, if user
> unsets the bps limit, the block job will run normally.
Wait, that's not what happens:
a) If you start a job then stop the vm then the job will be
completed immediately.
b) If you stop the vm then start the job then it won't make any
progress.
This patch fixes b), but a) still happens.
Berto