Hi,
I'm having a play with VMRM Cooperative Memory Management, now I have z/VM
5.3 and SLES 10.1 installed. However, I'm not sure that it is working
correctly.
>From z/VM, I see....
q memassist for user vmlxtst5
ALL USERS SET - ON
USER SETTING STATUS
VMLXTST5 ON ACTIVE,SIMULATED
... with the "SIMULATED" meaning that assist is not installed, but is
being simulated by CP, according to the HELP info. I take that to mean
that Linux is not set up correctly. Or am I barking up the wrong tree
here?
>From Linux, I have specified the following in /etc/zipl.conf and run zipl
-V ....
parameters = "dasd=150-15F root=/dev/dasda1 cmm.sender=VMRMSVM
TERM=dumb"
I have also issued...
modprobe cmm sender=VMRMSVM
... and lsmod confirms that cmm is loaded.
cat /proc/sys/vm/cmm_pages shows values that match those recorded in
VMRMSVM's log file for the SMSG entries for the same time period, so it
seems that z/VM is telling Linux to reduce memory.
But is Linux taking any notice? How do I confirm that it is? I don't see
any corresponding reduction in memory usage using top in Linux, or PERFKIT
in z/VM.
Regards,
Fred Schmidt
Department of Corporate and Information Services (DCIS)
Data Centre Services (DCS)
Northern Territory Government, Australia
