Re: [Qemu-devel] [PATCH v2] scripts: qmp: Introduce vcpu pinning helper script

[Maxime Coquelin]

Hi Peter,

On 10/04/2016 01:22 PM, Maxime Coquelin wrote:
> This python script calls 'query-cpus' QMP command to retrieve
> vCPUs thread IDs.
> Thread IDs are then used by taskset to pin vCPUs to physical
> CPUs passed in command line.
>
> In case more vCPUs are present than the number of CPUs assigned
> in command line, multiple vCPUs get pinned to physical CPUs.
>
> If multiple vCPUs share a same thread ID (e.g. with TCG), the
> thread ID is pinned a single time.
>
> Signed-off-by: Maxime Coquelin <address@hidden>
> ---
> Changes since RFC:
> ==================
>  - If vCPUs share a same TID, don't pin them multiple times (peterx)
>
>  scripts/qmp/qmp-vcpu-pin | 45 +++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100755 scripts/qmp/qmp-vcpu-pin

I added your proposed change not to pin same TID multiple time,
does it look good to you?

Thanks,
Maxime