Re: [PATCH 4/8] cputime: Generic on-demand virtual cputime accounting

2013-02-08 Thread Frederic Weisbecker
2013/2/8 Stephen Rothwell : > Hi Frederic, > > On Fri, 8 Feb 2013 14:07:49 +1100 Stephen Rothwell > wrote: >> >> This patch has the side effect of changing the default configurations: >> (This is PowerPC pseries_defconfig before/after this patch) >> >> @@ -119,8 +120,8 @@ >> # >> # CPU/Task tim

Re: [PATCH 4/8] cputime: Generic on-demand virtual cputime accounting

2013-02-07 Thread Stephen Rothwell
Hi Frederic, On Fri, 8 Feb 2013 14:07:49 +1100 Stephen Rothwell wrote: > > This patch has the side effect of changing the default configurations: > (This is PowerPC pseries_defconfig before/after this patch) > > @@ -119,8 +120,8 @@ > # > # CPU/Task time and stats accounting > # > -# CONFIG_T

Re: [PATCH 4/8] cputime: Generic on-demand virtual cputime accounting

2013-02-07 Thread Stephen Rothwell
Hi Frederic, On Mon, 28 Jan 2013 20:04:01 +0100 Frederic Weisbecker wrote: > > If we want to stop the tick further idle, we need to be > able to account the cputime without using the tick. > > Virtual based cputime accounting solves that problem by > hooking into kernel/user boundaries. > > Ho