Process accounting/timing has broken recently

[Steve Kargl]

On Mon, Dec 06, 2010 at 07:35:31PM +0200, Kostik Belousov wrote:
> On Mon, Dec 06, 2010 at 08:38:30AM -0800, Steve Kargl wrote:
> > John,
> > 
> > Thanks for the comment.  It seems this splitting has become
> > worse (for some definition of worse) in that previously the
> > user time variation was on the order of tenth of a second not
> > seconds.  In thinking about the issue, I recalled that some
> > changes to npx.c were committed 10 days ago.  Perhaps, there
> > is slightly more context switch overhead in dealing with the
> > FPU registers, and this has increased the sys time.
> If you can confirm this statement, it would be interesting. Otherwise,
> I claim that the changes did not affected the context switch path at
> all. The changes were mostly relevant for context(2) family of functions
> and debugger access to the FPU register file.

I won't be able to test this possibiolity until later 
tonight (about 9 hours from now).

-- 
Steve