I have done some reading on the subject of work queues and CPU
isolation, and specifically I've read a number of posts from Max K.
dating back to 2008 on the subject of CPU isolation. However, I have
not seen much in the way of discussion on the subject in more recent
times, specifically in the 3.x kernels; where it appears there are
some significant differences in the structure of workqueue in general.
Is there anyone currently doing work on additional isolation of CPUs
from work queues? I have some requirement to further isolate cores on
a machine from these queues and am hoping someone here could point me
in the right direction.
Thanks.
wilson
[Adding CCs]
On 05/08/2012 10:03 PM, wilson self wrote:
> I have done some reading on the subject of work queues and CPU
> isolation, and specifically I've read a number of posts from Max K.
> dating back to 2008 on the subject of CPU isolation. However, I have
> not seen much in the way of discussion on the subject in more recent
> times, specifically in the 3.x kernels; where it appears there are
> some significant differences in the structure of workqueue in general.
>
> Is there anyone currently doing work on additional isolation of CPUs
> from work queues? I have some requirement to further isolate cores on
> a machine from these queues and am hoping someone here could point me
> in the right direction.
>
> Thanks.
> wilson
Hi Wilson,
On Wed, May 9, 2012 at 12:03 AM, wilson self <[email protected]> wrote:
> I have done some reading on the subject of work queues and CPU
> isolation, and specifically I've read a number of posts from Max K.
> dating back to 2008 on the subject of CPU isolation. ?However, I have
> not seen much in the way of discussion on the subject in more recent
> times, specifically in the 3.x kernels; where it appears there are
> some significant differences in the structure of workqueue in general.
>
> Is there anyone currently doing work on additional isolation of CPUs
> from work queues? I have some requirement to further isolate cores on
> a machine from these queues and am hoping someone here could point me
> in the right direction.
>
Yes, I am and so do many other people on the general topic of CPU isolation.
Start here: https://github.com/gby/linux/wiki
Continue here: https://lkml.org/lkml/2012/5/3/268
And if you are interested in CPU isolation in general, then these will
interest you as well:
http://lwn.net/Articles/495422/
http://lkml.indiana.edu/hypermail/linux/kernel/1202.1/00590.html (this
last patch set has gone into 3.4-rc1 already)
I'd be very glad to cooperate :-)
Gilad
> Thanks.
> wilson
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Gilad Ben-Yossef
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?-- Jean-Baptiste Queru