Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1170312

Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched files

From "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched files
Date 2015-06-23 02:40 +0200
Message-ID <pEkpQ-3gZ-15@gated-at.bofh.it> (permalink)
References (5 earlier) <pE9Xs-4V1-9@gated-at.bofh.it> <pEbFU-7oU-23@gated-at.bofh.it> <pEbPA-7A9-15@gated-at.bofh.it> <pEdeG-12y-17@gated-at.bofh.it> <pEfgu-48P-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Mon, Jun 22, 2015 at 09:03:08PM +0200, Peter Zijlstra wrote:
> 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.

Boot, suspend, and hibernation indeed would be faster if we did less,
but we still will have to do something.

							Thanx, Paul

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched  files Dave Hansen <dave@sr71.net> - 2015-06-20 20:10 +0200
  Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched  files "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-06-21 03:40 +0200
    Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched  files "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-06-23 02:40 +0200
    Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched  files "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-06-23 02:40 +0200

csiph-web