From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller Date: Mon, 17 Oct 2011 09:36:58 +0200 Message-ID: <1318837019.6594.29.camel@twins> References: <1318349729-3108-1-git-send-email-kirill@shutemov.name> <1318349729-3108-4-git-send-email-kirill@shutemov.name> <20111014154348.ae6267aa.akpm@linux-foundation.org> <20111015112006.GA10173@tango.0pointer.de> <1318705910.2664.5.camel@laptop> <20111017013921.GA30035@tango.0pointer.de> <20111017032232.GA4816@srcf.ucam.org> <4E9BBB6D.4050004@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <4E9BBB6D.4050004-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Arjan van de Ven Cc: Matthew Garrett , Lennart Poettering , Andrew Morton , "Kirill A. Shutemov" , Paul Menage , Li Zefan , Thomas Gleixner , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Matt Helsley , linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Kay Sievers , harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, david-o55+BOBDEFg@public.gmane.org, greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org List-Id: linux-api@vger.kernel.org On Sun, 2011-10-16 at 22:21 -0700, Arjan van de Ven wrote: > and..it's not like we let the bad guys go free. > We actually seriously hurt their behavior while we throttle their timers > here. How are they hurt? The app appears to behave properly (there are no repercussions, the app doesn't crash, the developer doesn't get punched in the face). This doesn't make the developer improve his app, nor make him take greater care for the next app. Such behaviour will in fact encourage crap since he seems to be getting away with it.