Thread (158 messages) flat view 158 messages, 14 authors, 2016-02-11

Re: [PATCH 0/6] support "dataplane" mode for nohz_full

From: Paul E. McKenney <hidden>
Date: 2015-05-11 17:19:25
Also in: lkml

On Mon, May 11, 2015 at 08:57:59AM -0400, Steven Rostedt wrote:
NO_HZ_LEAVE_ME_THE_FSCK_ALONE!
NO_HZ_OVERFLOWING?

Kconfig naming controversy aside, I believe this patchset is addressing
a real need.  Might need additional adjustment, but something useful.

							Thanx, Paul
On Sat, 9 May 2015 09:05:38 +0200
Ingo Molnar [off-list ref] wrote:
quoted
So I think we should either rename NO_HZ_FULL to NO_HZ_PURE, or keep 
it at NO_HZ_FULL: because the intention of NO_HZ_FULL was always to be 
such a 'zero overhead' mode of operation, where if user-space runs, it 
won't get interrupted in any way.

All kidding aside, I think this is the real answer. We don't need a new
NO_HZ, we need to make NO_HZ_FULL work. Right now it doesn't do exactly
what it was created to do. That should be fixed.

Please lets get NO_HZ_FULL up to par. That should be the main focus.

-- Steve
  
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