Rob, I appreciate your comments: We have the timer patch installed across 17 out of 18 linux images so that shouldn't be the problem. I have made some changes to srm which removed users from E3. q srm IABIAS : INTENSITY=90%; DURATION=2 LDUBUF : Q1=300% Q2=200% Q3=150% STORBUF: Q1=200% Q2=175% Q3=150% DSPBUF : Q1=32767 Q2=32767 Q3=32767 DISPATCHING MINOR TIMESLICE = 5 MS MAXWSS : LIMIT=9999% ...... : PAGES=999999 XSTORE : 75% Ready; T=0.01/0.01 12:39:02
I will be monitoring and tweaking as we go. Thanks Phil Rob van der Heij wrote: > > At 20:38 16-07-02, Philip J. Tully wrote: > > >LDUBUF : Q1=100% Q2=75% Q3=60% > >STORBUF: Q1=125% Q2=105% Q3=95% > > Unless you have the timer patch applied, your Linux machine > will be in Q3 all the time. If most of what you do is Linux > then you waste a lot if you tell CP to use only 60% of real > storage for Linux images. So yes, in that case you want to > raise LDUBUF, with enough Linux images you will even have to > disable it by setting to 999% all three. > You could encourage CP further by setting the SRM XSTORE a bit > higher so that CP will page a bit more. > > But the real solution is to make your Linux images much smaller > and run with the timer patch so that you get out of Q3 and CP > can make a better guess what pages to take away. > > Rob
