cvs commit: src/sys/kern sched_ule.c

[Jeff Roberson]

jeff        2003/06/16 23:39:51 PDT

  FreeBSD src repository

  Modified files:
    sys/kern             sched_ule.c 
  Log:
   - Add a new function "sched_interact_update()" that scales back the sleep
     and run time.
   - Scale the sleep and run time back via sched_interact_update() in more
     places.  This is to keep the statistic more accurate.
   - Charge a parent one tick for forking a child.
   - Add only the run time and not the sleep time to the parents kg when a
     thread exits.  This allows us to give a penalty for having an expensive
     thread exit but does not give a bonus for having an interactive thread
     exit.
   - Change the SLP_RUN_THROTTLE to limit us to 4/5th and not 1/2.
   - Change the SLP_RUN_MAX to two seconds.  This keeps bursty interactive
     applications like mozilla and openoffice in the interactive range even
     through expensive tasks.
   - Recalculate the slice after every sleep.  This ensures that once a task
     has been marked interactive it only has a slice of 1 at the risk of
     giving tasks that sleep for a very brief period a longer time slice.
  
  Revision  Changes    Path
  1.42      +20 -23    src/sys/kern/sched_ule.c