Rob van der Heij
Mon, 01 Feb 2010 04:55:06 -0800
On Mon, Feb 1, 2010 at 12:50 PM, Walter Wojcik <wal...@abinitio.com> wrote: > First thanks to all who answered my inquiry. I have one additional > question. > > I read somewhere that there is an RPC client capability that can be used > to determine what the SHARE is and how the vm is performing vis vie the > SHARE settings. Is the RPC usable from within zLinux? I would like to > occasionally check the cpu usage to determine if I need to raise the cap?
Recent kernels will show you a "steal time" that sort-of gives an indication of whether the virtual machine wanted to have more resources. But you need a performance monitor to evaluate whether SHARE settings were holding the virtual machines back and whether they could take advantage of better tuning. Trying to do so with only real-time samples or daily average is not very effective. And if you're willing and able to raise the capping when the virtual machine suffers from it, why would not you not raise it now already ;-) Rob -- Rob van der Heij Velocity Software http://www.velocitysoftware.com/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390