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20031216: dcnexr2 cpu usage

  • Subject: 20031216: dcnexr2 cpu usage
  • Date: Thu, 18 Dec 2003 15:33:36 -0700
Larry,

I'd have to know what support question you are referring to.

I have not seen a problem with CPU usage getting out of hand,
but have seen that any decoder could get wedged and CPU intensive if 
the system were I/O backed up so that pqact starting firing off multiple 
instances of the PIPE and the output file became corrupted.

Steve Chiswell




>From: "Larry D. Oolman" <address@hidden>
>Organization: University of Wyoming
>Keywords: 200312162007.hBGK76p2008760

>I was seeing 100% cpu usage by dcnexr2.  It is probably
>caused by a system bug.  If I compile with a '-pg'
>option to profile it, the problem goes away.  We
>are using version 5.6.l.1 on an up2date RH9 system with dual-Xenon
>cpus.  I don't know if the problem is related to the dual cpu or not.
>
>I did see some discussion of this problem in the support
>archives.  Was it ever resolved?
>-- 
>Larry Oolman
>Department of Atmospheric Science
>University of Wyoming
>address@hidden
>http://www-das.uwyo.edu
>