cvs commit: src/sys/kern sched_ule.c

[Jeff Roberson]

jeff        2003/10/26 22:47:05 PST

  FreeBSD src repository

  Modified files:
    sys/kern             sched_ule.c 
  Log:
   - Use a better algorithm in sched_pctcpu_update()
  
  Contributed by: Thomaswuerfl at gmx.de
  
   - In sched_prio(), adjust the run queue for threads which may need to move
     to the current queue due to priority propagation .
   - In sched_switch(), fix style bug introduced when the KSE support went in.
     Columns are 80 chars wide, not 90.
   - In sched_switch(), Fix the comparison in the idle case and explicitly
     re-initialize the runq in the not propagated case.
   - Remove dead code in sched_clock().
   - In sched_clock(), If we're an IDLE class td set NEEDRESCHED so that threads
     that have become runnable will get a chance to.
   - In sched_runnable(), if we're not the IDLETD, we should not consider
     curthread when examining the load.  This mimics the 4BSD behavior of
     returning 0 when the only runnable thread is running.
   - In sched_userret(), remove the code for setting NEEDRESCHED entirely.
     This is not necessary and is not implemented in 4BSD.
   - Use the correct comparison in sched_add() when checking to see if an idle
     prio task has had it's priority temporarily elevated.
  
  Revision  Changes    Path
  1.67      +50 -56    src/sys/kern/sched_ule.c