Re: CPU Time slices, technotes.

Are there any recommendations for HPUX 10.20?? John Carlson Informix DBA WHSmith USA Art S. Kagel wrote: > > David Tamburin wrote: > > > > This is a multi-part message in MIME format. > > > A few days ago I saw a message by Art S. Kagel. It mentioned changing > > some kernal parameters to change timeslice to improve performance. > > Could anyone tell me where I can dig this information up? > > OK Here are the Kernel parameters to adjust the Solaris system clock > and timeslice down form the default 1/10 sec to 1ms. In /etc/system: > > set hires_tick=1 # or 2 - Number of system ticks per timeslice- 1 ms > set hires_hz=1000 # Number of system ticks per second, ie set to ms > > Without this change you will be hard pressed to push the machine > beyond about 65% utilization. After the change you can add processes > and push utilization above 92%! > > Art S. Kagel