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From: "David E. O'Brien" <obrien@FreeBSD.org>
Date: Thu, 22 Apr 2004 14:37:47 -0700 (PDT)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/kern sched_ule.c
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obrien      2004/04/22 14:37:47 PDT

  FreeBSD src repository

  Modified files:
    sys/kern             sched_ule.c 
  Log:
  There was a thread on "unusually high load averages" when running under
  sched_ule, in January 2004.  Looking at this, "pagezero" is (one of) the
  culprit(s).  We had no provision for processes with P_NOLOAD set.  With
  pagezero not running at PRI_ITHD, kseq_load_{add,rem} count pagezero as
  another-normal-process, thus the "expected-plus-one" load reported in
  the above thread.
  
  Submitted by:   Nikos Ntarmos <ntarmos@ceid.upatras.gr>
  
  Revision  Changes    Path
  1.105     +2 -2      src/sys/kern/sched_ule.c