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Re: [Qemu-devel] Following up questions related to QEMU and I/O Thread
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] Following up questions related to QEMU and I/O Thread |
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Date: |
Wed, 1 May 2019 12:36:50 -0400 |
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User-agent: |
Mutt/1.11.4 (2019-03-13) |
On Mon, Apr 29, 2019 at 10:56:31AM -0700, Wei Li wrote:
> Does this mean the performance could be improved via adding Batch I/O
> submission support in Guest driver side which will be able to reduce the
> number of virtqueue kicks?
Yes, I think so. It's not obvious to me how a Linux SCSI driver is
supposed to implement batching though. The .queuecommand API doesn't
seem to include information relevant to batching.
Stefan
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- Re: [Qemu-devel] Following up questions related to QEMU and I/O Thread,
Stefan Hajnoczi <=