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
