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Re: [Qemu-devel] [PATCH v4 0/3] linux-aio: introduce submit I/O as a bat
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH v4 0/3] linux-aio: introduce submit I/O as a batch |
Date: |
Thu, 3 Jul 2014 11:25:06 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 02.07.2014 um 14:18 hat Ming Lei geschrieben:
> Hi,
>
> The commit 580b6b2aa2(dataplane: use the QEMU block layer for I/O)
> introduces ~40% throughput regression on virtio-blk dataplane, and
> one of causes is that submitting I/O as a batch is removed.
>
> This patchset trys to introduce this mechanism on block, at least,
> linux-aio can benefit from that.
>
> With these patches, it is observed that thoughout on virtio-blk
> dataplane can be improved a lot, see data in commit log of patch
> 3/3.
>
> It should be possible to apply the batch mechanism to other devices
> (such as virtio-scsi) too.
This series doesn't seem to apply cleanly on current master. Can you
rebase, please? Meanwhile, I'll try reviewing the patches as good as
it's possibly when they don't apply.
Kevin
- Re: [Qemu-devel] [PATCH v4 2/3] linux-aio: implement io plug, unplug and flush io queue, (continued)
Re: [Qemu-devel] [PATCH v4 2/3] linux-aio: implement io plug, unplug and flush io queue, Stefan Hajnoczi, 2014/07/03
[Qemu-devel] [PATCH v4 3/3] dataplane: submit I/O as a batch, Ming Lei, 2014/07/02
Re: [Qemu-devel] [PATCH v4 3/3] dataplane: submit I/O as a batch, Stefan Hajnoczi, 2014/07/03
Re: [Qemu-devel] [PATCH v4 3/3] dataplane: submit I/O as a batch, Stefan Hajnoczi, 2014/07/03
Re: [Qemu-devel] [PATCH v4 0/3] linux-aio: introduce submit I/O as a batch,
Kevin Wolf <=
Re: [Qemu-devel] [PATCH v4 0/3] linux-aio: introduce submit I/O as a batch, Stefan Hajnoczi, 2014/07/03