[procps] Re: top: NUMA node CPU utilization support
- From: Lance Shelton <LShelton@xxxxxxxxxxxx>
- To: "procps@xxxxxxxxxxxxx" <procps@xxxxxxxxxxxxx>
- Date: Sun, 14 Apr 2013 10:43:41 -0600
Craig,
Thanks for pushing the changes. This will be helpful to many people.
Current Intel processors support up to 10 cores within a single socket,
which appears as 20 CPUs in top with Hyperthreading enabled. While
8-socket servers like the HP DL980 and 4-socket servers like the DL580 and
DL585 are not the norm, dual-socket servers are very common. In
particular, the HP DL380 is prevalent, but I have also run into Dell's
R620/R720 and some SuperMicro servers.
Next year may bring Intel Ivy Bridge-EX, which is reported to support up
to 15 cores (30 Hyperthreads) in a single socket.
Development on any of these can benefit from the organizational display of
CPU usage into NUMA nodes. There has been a lot of NUMA work going on in
Linux recently, and anyone working in this domain will appreciate having
better integrated tools.
Lance
On 4/14/13 8:46 AM, "Craig Small" <csmall-procps@xxxxxxxxxx> wrote:
>On Sun, Apr 14, 2013 at 07:40:10AM -0500, Jim Warner wrote:
>> But I worry that Werner may have un-subscribed. Wish I has CC'd him...
>Might be worth doing, Werner was always the one coming up with machines
>with insane number of CPUs.
>
> - Craig
>
>--
>Craig Small VK2XLZ http://enc.com.au/ csmall at : enc.com.au
>Debian GNU/Linux http://www.debian.org/ csmall at : debian.org
>GPG fingerprint: 5D2F B320 B825 D939 04D2 0519 3938 F96B DF50 FEA5
>
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