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Re: [Qemu-devel] [PATCH V4 01/10] NUMA: Support multiple CPU ranges on -
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH V4 01/10] NUMA: Support multiple CPU ranges on -numa option |
Date: |
Mon, 08 Jul 2013 21:34:06 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 |
On 07/08/2013 09:28 PM, Wanlong Gao wrote:
>>>>>
>>>>> Note that after this patch, the defalut suffix of "-numa node,mem=N"
>>>>> will no longer be "M". So we must add the suffix "M" like "-numa
>>>>> node,mem=NM"
>>>>> when assigning "N MB" of node memory size.
>>>>
>
> But if we follow Paolo's suggestion like:
> -numa node,nodeid=0,cpus=0 -numa node,nodeid=1,cpus=1 \
> -numa mem,nodeid=0,size=1G,policy=membind,hostnode=0-1
> -numa mem,nodeid=1,size=2G,policy=interleave,hostnode=1
>
> We already break the command line compatibility.
New command options can have whatever syntax makes sense. The worry
here is that if you use the old command line without any new options,
the old syntax must behave the same.
> Why not change it be a really "size" options without default suffix?
Because users are annoyed when a command line that worked with qemu 1.5
needlessly fails to work with qemu 1.6.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] [PATCH V4 00/10] Add support for binding guest numa nodes to host numa nodes, Wanlong Gao, 2013/07/04
- [Qemu-devel] [PATCH V4 03/10] NUMA: Add Linux libnuma detection, Wanlong Gao, 2013/07/04
- [Qemu-devel] [PATCH V4 01/10] NUMA: Support multiple CPU ranges on -numa option, Wanlong Gao, 2013/07/04
- Re: [Qemu-devel] [PATCH V4 01/10] NUMA: Support multiple CPU ranges on -numa option, Paolo Bonzini, 2013/07/14
- Re: [Qemu-devel] [PATCH V4 01/10] NUMA: Support multiple CPU ranges on -numa option, Eric Blake, 2013/07/15
- Re: [Qemu-devel] [PATCH V4 01/10] NUMA: Support multiple CPU ranges on -numa option, Paolo Bonzini, 2013/07/16
[Qemu-devel] [PATCH V4 06/10] NUMA: split out the common range parser, Wanlong Gao, 2013/07/04
[Qemu-devel] [PATCH V4 02/10] NUMA: Add numa_info structure to contain numa nodes info, Wanlong Gao, 2013/07/04
[Qemu-devel] [PATCH V4 04/10] NUMA: parse guest numa nodes memory policy, Wanlong Gao, 2013/07/04
[Qemu-devel] [PATCH V4 09/10] NUMA: add hmp command set-mpol, Wanlong Gao, 2013/07/04