Re: [patch 2.6.16-rc5-mm2] sched_cleanup-V17 - task throttling patch 1 of 2

[Mike Galbraith <efault@gmx.de>]

On Sun, 2006-03-05 at 08:37 +1100, Peter Williams wrote:
> Mike Galbraith wrote:
> > On Sat, 2006-03-04 at 10:58 +1100, Peter Williams wrote:
> > 
> > 
> >>If you're going to manage the time slice in nanoseconds why not do it 
> >>properly?  I presume you've held back a bit in case you break something?
> >>
> > 
> > 
> > Do you mean the < NS_TICK thing?  The spare change doesn't go away.
> 
> Not exactly.  I mean "Why calculate time slice in jiffies and convert to 
> nanoseconds?  Why not just do the calculation in nanoseconds?"

Turns out that my first instinct was right, and there is a good reason
not to.  It doesn't improve readability nor do anything functional, it
only adds clutter.  I much prefer the look of plain old ticks, and
having nanoseconds only intrude where they're required.  I did change
NS_TICK to the less obfuscated (1000000000 / HZ), with task_timeslice()
returning a more readable ticks * NS_TICK conversion.

	-Mike