[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate
|
From: |
Paolo Bonzini |
|
Subject: |
Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate |
|
Date: |
Tue, 09 Apr 2013 10:08:22 +0200 |
|
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
Il 09/04/2013 10:04, Kevin Wolf ha scritto:
>> >
>> > Looks good, but given there are patches to fix it, I'm not sure it's
>> > worth the trouble...
> Shouldn't this perform even a little better? And we should get rid of
> non-vectored interfaces in the block layer anyway.
Yes, if you have a very fast disk it should. Network throughput with
Orit's patches jumped from 2.9 Gbps to 4.2 Gbps. But savevm is not
live, so it is not as important to make it really fast.
Anyhow, since the patches are there to fix both the cause and the
symptom, there's really no reason to hold either series.
Paolo
- [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate, Kevin Wolf, 2013/04/05
- [Qemu-devel] [PATCH 1/4] block: Introduce bdrv_writev_vmstate, Kevin Wolf, 2013/04/05
- [Qemu-devel] [PATCH 2/4] savevm: Implement block_writev_buffer(), Kevin Wolf, 2013/04/05
- [Qemu-devel] [PATCH 3/4] block: Introduce bdrv_pwritev() for qcow2_save_vmstate, Kevin Wolf, 2013/04/05
- [Qemu-devel] [PATCH 4/4] qemu-iotests: A few more bdrv_pread/pwrite tests, Kevin Wolf, 2013/04/05
- Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate, Stefan Hajnoczi, 2013/04/08
Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate, Stefan Hajnoczi, 2013/04/09