On Monday, 11/10/2014 at 04:40 EST, "Veencamp, Jonathon D." <[email protected]> wrote:
> - "vmcp ind" command. I gather AVGPROC for IFL hardware utilization. And also > XSTORE and PAGING info. > - I also iteratively issue 'vmcp ind linuxguestname' for each of our Linii, so > we can display how much actual CPU each of the hosts is using. On a low > priority host, top and sar can give an incomplete picture if the hipervisor is > choking them off. I always tell clients that CP INDICATE doesn't scale. While those values are fine when the system is humming along nicely (i.e. you don't really care about them), they are generally of minimal use when (not if) you have trouble. While they can tell you that users are waiting for I/O, for example, they can't really give you insight into why. And the bigger your system, the less meaningful INDICATE becomes. To successfully grow a zLinux farm, you *need* a commercial performance management solution for z/VM. All of the solutions mentioned here are excellent. Each has its own annoying idiosyncrasies, of course, but so does any other applications you buy. Alan Altmark Senior Managing z/VM and Linux Consultant Lab Services System z Delivery Practice IBM Systems & Technology Group ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 [email protected] IBM Endicott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
