SCHED_4BSD: More than 1 process running on UP machine?

[Momchil Ivanov]

On Saturday 30 June 2007 10:50:38 Ulrich Spoerlein wrote:
> Hi all,
>
> I upgraded to -CURRENT and am running with SCHED_BSD on an UP machine
> (where ULE has no advantage over BSD, right?)

This is not quite correct:

last pid:  1155;  load averages:  0.00,  0.19,  0.18                                                                                          
up 0+00:09:22  12:01:21
59 processes:  5 running, 54 sleeping
CPU states:  5.7% user,  0.0% nice,  1.3% system,  0.3% interrupt, 92.7% idle
Mem: 144M Active, 138M Inact, 93M Wired, 1684K Cache, 92M Buf, 619M Free
Swap: 1024M Total, 1024M Free

  PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
 1038 space         3  20    0 74196K 64224K kserel   0:07  0.00% opera
 1089 space         3  20    0 57064K 48108K kserel   0:16  0.00% kmail
  950 space         1  96    0 54568K 36388K select   0:19  2.93% Xorg
 1013 space         1  96    0 35348K 29004K RUN      0:01  0.00% kdeinit
 1087 space         1  96    0 34600K 28608K select   0:00  0.00% korgac
 1083 space         1  96    0 33184K 24020K select   0:00  0.00% kdeinit
 1025 space         1  96    0 32416K 26876K RUN      0:01  0.00% kdeinit
 1069 space         1  96    0 32072K 26584K select   0:00  0.00% kdeinit
 1151 space         1  96    0 31612K 26120K select   0:00  0.00% kdeinit
 1045 space         1  96    0 31612K 26116K select   0:00  0.00% kdeinit
 1035 space         1  96    0 31164K 25960K select   0:00  0.00% kgpg
 1023 space         1  96    0 31028K 26016K RUN      0:01  0.00% kdeinit
 1051 space         1  96    0 30564K 23000K select   0:01  0.00% pidgin
 1021 space         1  96    0 28724K 22896K RUN      0:01  0.00% kdeinit

on my laptop with FreeBSD 6.2-STABLE #10: Thu Jun 14 13:01:26 CEST 2007. After 
the next refresh of top, these in state "RUN" are in state "select", and 
only "top" is shown in state "RUN". However if I change the order of sorting, 
say by size or by cpu usage, in the first moment I see a couple of processes 
in "RUN" state as above and after the next refresh top shows them in "select" 
state.

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