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From: Peter Zijlstra <peterz@infradead.org>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Dave Hansen <dave@sr71.net>, Andi Kleen <ak@linux.intel.com>,
	dave.hansen@linux.intel.com, akpm@linux-foundation.org,
	jack@suse.cz, viro@zeniv.linux.org.uk, eparis@redhat.com,
	john@johnmccutchan.com, rlove@rlove.org,
	tim.c.chen@linux.intel.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched files
Date: Mon, 22 Jun 2015 21:03:08 +0200	[thread overview]
Message-ID: <20150622190308.GY3644@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20150622162949.GA3892@linux.vnet.ibm.com>

On Mon, Jun 22, 2015 at 09:29:49AM -0700, Paul E. McKenney wrote:

> I believe that there still are some cases.  But why would offline
> CPUs seem so iffy?  CPUs coming up execute code before they are fully
> operational, and during that time, much of the kernel views them as
> being offline.  Yet they do have to execute significant code in order
> to get themselves set up.

I'm thinking we do far too much during bringup and tear-down as it is.
But yes maybe.
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  reply	other threads:[~2015-06-22 19:03 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-19 21:50 [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched files Dave Hansen
2015-06-19 23:33 ` Andi Kleen
2015-06-20  0:29   ` Paul E. McKenney
2015-06-20  0:39   ` Dave Hansen
2015-06-20  2:21     ` Paul E. McKenney
2015-06-20 18:02       ` Dave Hansen
2015-06-21  1:30         ` Paul E. McKenney
2015-06-22 13:28           ` Peter Zijlstra
2015-06-22 15:11             ` Paul E. McKenney
2015-06-22 15:20               ` Peter Zijlstra
2015-06-22 16:29                 ` Paul E. McKenney
2015-06-22 19:03                   ` Peter Zijlstra [this message]
2015-06-23  0:31                     ` Paul E. McKenney
2015-06-22 18:50               ` Dave Hansen
2015-06-23  0:26                 ` Paul E. McKenney
2015-06-24 16:50                   ` Dave Hansen
2015-06-24 17:29                     ` Paul E. McKenney
2015-06-22 18:52               ` Peter Zijlstra
2015-06-23  0:29                 ` Paul E. McKenney
2015-06-23 15:17 ` Jan Kara

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