Re: SCHED_ULE and nice still ignored

On Saturday 31 January 2004 22:24, Steve Kargl wrote:
> On Sat, Jan 31, 2004 at 09:46:29PM +0100, Harald Schmalzbauer wrote:
> Content-Description: signed data
>
> > like I reported some weeks ago, SCHED_ULE seems to ignore nice.
> > Since it's now the default I gave it another try and did the following
> > simple test:
> >
> > SCHED_ULE:
> > seti in background (doesn't matter if nice=20 or 15)
> > /usr/ports/sysutils/cpdup
> > make install takes Minutes
> >
> > Without seti it takes some seconds
> >
> > SCHED_4BSD:
> > seti in background (doesn't matter if nice=20 or 15)
> > /usr/ports/sysutils/cpdup
> > make install finishes in seconds. No difference with or without seti
> >
> >
> > Please let us know when nice gets respected by SCHED_ULE so I can really
> > use it as default scheduler.
>
> Seems to work for me.  You need to describe your problem better.
>
> last pid: 70890;  load averages:  2.49,  1.86,  1.54    up 1+17:55:17 
> 13:23:16 64 processes:  5 running, 59 sleeping
> CPU states: 16.8% user,  4.6% nice, 77.7% system,  1.0% interrupt,  0.0%
> idle Mem: 120M Active, 176M Inact, 58M Wired, 18M Cache, 48M Buf, 1072K
> Free Swap: 356M Total, 356M Free

Ok, perhaps nice is working in some way, but as I described earlier far away 
from what it should do.
If I start a process with nice 15 (like seti) it shouldn't slow down my 
machine by exponetial factors.
It should take cycles which are almost unused and not block regular processes 
(like make)

If you want to know exact values, I can take a clock and measure the exact 
divverence, but I think this is not needed at all since the differenc isn't 
marignal, its minutes vs. seconds.

-Harry

>
>   PID USERNAME PRI NICE   SIZE    RES STATE    TIME   WCPU    CPU COMMAND
>   592 kargl     76    0 35248K 34284K RUN    600:36  1.56%  1.56% XFree86
> 70093 kargl      8   20  1708K  1000K wait     0:00  1.56%  1.56% sh
> 70889 kargl    139   20  4152K  3148K RUN      0:00  1.56%  1.56% cc1
> 70887 kargl      8   20   328K   220K wait     0:00  1.56%  1.56% gcc
> 70886 kargl      8   20  1708K  1000K wait     0:00  1.56%  1.56% sh
>   822 kargl     76    0  5000K  3276K select   2:02  0.78%  0.78% xterm
> 70792 root       8    0  1336K  1216K wait     0:00  0.78%  0.78% make
> 70888 root       8    0  1660K   944K wait     0:00  0.78%  0.78% sh
> 70890 root     139    0  1568K   632K RUN      0:00  0.78%  0.78% gzip
>   606 kargl     76    0  5068K  3340K RUN      0:01  0.00%  0.00% xterm
> 70765 kargl     76    0  2312K  1364K RUN      0:00  0.00%  0.00% top