[comp.unix.ultrix] csh hiccups

fingerhu@ircam.fr (Michel Fingerhut) (03/04/91)

From time to time (i.e., several times a day), a command started from csh
on our 5820 (DEC/RISC Ultrix 4.0) takes 15-30 seconds to start, regardless of
the load average of the machine.  A "ps axl" on the controling terminal shows
it's actually the csh which is in disk wait, with funny flags (some digits
missing):  in the following output it's the last line.

      F UID   PID  PPID CP PRI NI ADDR  SZ  RSS WCHAN STAT TT  TIME COMMAND
11008001   0  4281   222  2   1  0 2bdf  60   48 5f05c I    p2  0:38 rlogind
1180c001  70  4282  4281  0  -1  0 2fd7   0    0  4314 D    p2  0:00 -csh (csh)
10008021   0  5543  4282  0  25  0 2d32 232  188       T    p2  0:04 -u (csh)
   9001  70 10143  4282  1  -5  0 3030 368  284  c224 D    p2  0:09 -csh (csh)

Any clues, help?  It is rather annoying to have to wait 30 secs for an ls of
a directory on the local disk containing 4 files on a machine with load avg of
1.5 and presumed to work at 35 MIPS.

pavlov@canisius.UUCP (Greg Pavlov) (03/06/91)

In article <1991Mar4.125200.10446@ircam.fr>, fingerhu@ircam.fr (Michel Fingerhut) writes:
> From time to time (i.e., several times a day), a command started from csh
> on our 5820 (DEC/RISC Ultrix 4.0) takes 15-30 seconds to start, regardless of
> the load average of the machine.
  
  It was my impression that what you are seeing is the symptom of problems
  in ULTRIX multiprocessing for which there is supposed to be at least
  partial relief in version 4.1.  But I may be wrong; we no longer have
  our 5810 so I lost interest in following its vagaries..


  pavlov@stewart.fstrf.org