[PATCH] Toggle display of the kernel idle process (per-CPU idle threads) in top

Dan Nelson dnelson at allantgroup.com
Fri May 27 17:35:20 UTC 2011


In the last episode (May 27), John Baldwin said:
> On Friday, May 27, 2011 11:17:58 am Sergey Kandaurov wrote:
> > On 27 May 2011 18:46, John Baldwin <jhb at freebsd.org> wrote:
> > > Some times in top, I don't want to see all the per-CPU idle threads
> > > but instead focus on the non-idle threads that are running. 
> > > Especially on a system with a lot of CPUs, the idle threads can push
> > > all the interesting threads off of the list.  This patch adds a new
> > > 'z' flag (gratuitously chosen letter) and interactive command to
> > > toggle the display of the system idle process.  Patch is tested
> > > against 8, but should work fine on HEAD too:
> > 
> > Works on HEAD as well. I like this idea.  Perhaps it could be combined
> > with i key?
> 
> I couldn't think of a sane way.  There are a few times when I want to see
> the idle processes, but mostly I don't want to see them and want all the
> other settings (idle, system, threads, etc.) to be orthogonal.

Top currently maps both "i" and "I" to "toggle idle processes".  Maybe map
"I" to "toggle system idle processes"?

-- 
	Dan Nelson
	dnelson at allantgroup.com


More information about the freebsd-current mailing list