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SubjectRe: [PATCH]O14int
On Mon, 11 Aug 2003 15:44, Martin Schlemmer wrote:
> On Sat, 2003-08-09 at 11:04, Con Kolivas wrote:
> > On Sat, 9 Aug 2003 01:49, Con Kolivas wrote:
> > > More duck tape interactivity tweaks
> >
> > s/duck/duct
> >
> > > Wli pointed out an error in the nanosecond to jiffy conversion which
> > > may have been causing too easy to migrate tasks on smp (? performance
> > > change).
> >
> > Looks like I broke SMP build with this. Will fix soon; don't bother
> > trying this on SMP yet.
> Not to be nasty or such, but all these patches have taken
> a very responsive HT box to one that have issues with multiple
> make -j10's running and random jerkyness.

A UP HT box you mean? That shouldn't be capable of running multiple make -j10s
without some noticable effect. Apart from looking impressive, there is no
point in having 30 cpu heavy things running with only 1 and a bit processor
and the machine being smooth as silk; the cpu heavy things will just be
unfairly starved in the interest of appearance (I can do that easily enough).
Please give details if there is a specific issue you think I've broken or
else I wont know about it.

> I am not so sure I for one want changes to the scheduler for
> SMP (not UP interactivity ones anyhow).

They're not; the improvements should affect fairness on SMP as well and
although interactivity is what I'm addressing on the surface, fairness is the
real issue.


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