Re: The timer softirq on the RT kernel

From	yunhong jiang <yunhong.jiang@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: The timer softirq on the RT kernel
Date	2016-08-05 22:30 +0200
Message-ID	<s2TUK-3Xw-9@gated-at.bofh.it> (permalink)
References	<s2BuN-mO-15@gated-at.bofh.it> <s2BuN-mO-17@gated-at.bofh.it> <s2BuN-mO-13@gated-at.bofh.it> <s2Ddf-1xK-7@gated-at.bofh.it>
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On Fri, 05 Aug 2016 04:36:23 +0200
Mike Galbraith <umgwanakikbuti@gmail.com> wrote:

> On Thu, 2016-08-04 at 17:36 -0700, yunhong jiang wrote:
> > Hi,Mike & Steven
> > 	On https://lkml.org/lkml/2015/3/24/1178, the patch of
> > "timers: do not raise softirq unconditionally" is reverted. Thanks
> > for Steven's
> > detailed comments, it's quite clear explained.
> > 	I remember Mike has a patch trying to fix it but late
> > abandoned. Do you still have any plan to work on this? Otherwise, I
> > will have a try.
> 
> Sebastian converted the lock to raw in -rt, so nohz_full now works
> without any extra hackery.

Hi, Mike, thanks for reply and the update. I still noticed timer softirq
on my isolated CPUs, possibly something wrong on my environment. I will
re-check it.

Thanks
--jyh

> 
> 	-Mike

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The timer softirq on the RT kernel yunhong jiang <yunhong.jiang@linux.intel.com> - 2016-08-05 02:50 +0200
  Re: The timer softirq on the RT kernel Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-08-05 04:40 +0200
    Re: The timer softirq on the RT kernel yunhong jiang <yunhong.jiang@linux.intel.com> - 2016-08-05 22:30 +0200

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