[procps] Re: top: NUMA node CPU utilization support
- From: Lance Shelton <LShelton@xxxxxxxxxxxx>
- To: "procps@xxxxxxxxxxxxx" <procps@xxxxxxxxxxxxx>
- Date: Wed, 10 Apr 2013 09:20:24 -0600
On 4/10/13 2:39 AM, "Jim Warner" <james.warner@xxxxxxxxxxx> wrote:
>What worries me is how many distros may not bother to enable numa support
>even though they ship libnuma anyway.
>
>My instincts tell me this is a very important procps enhancement.
>Currently there is no easy way to quickly assess cpu usage in those
>environments where numa is likely to be used (massively parallel
>machines).
>
>The existing top is limited to screen rows for individual cpu stats while
>the remainder just get truncated in such environments. Besides, those
>stats become less useful the more cpus there are.
I share Jim's concerns. There are other ways we can scrape the NUMA node
information if necessary, such as from /sys/devices/system/node/*, but the
implementation for top may not be as clean as with numactl/libnuma.
Lance
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