Hi, all!
On Thursday, 12 August 2010 22:05:34 -0300,
Daniel Bareiro wrote:
> Keeping the kernel I had compiled and installing the qemu-kvm package
> in Backports, now KSM is working:
>
> # cat /sys/kernel/mm/ksm/pages_sharing
> 181406
Looking at the statistics of the values obtained running 15 virtual
machines totaling 10.7 GB on a 4 GB VMHost, I get the following, which
is a very interesting memory savings:
# for ii in /sys/kernel/mm/ksm/* ; do echo -n "$ii: " ; cat $ii ; done
/sys/kernel/mm/ksm/full_scans: 4114
/sys/kernel/mm/ksm/max_kernel_pages: 253500
/sys/kernel/mm/ksm/pages_shared: 67064
/sys/kernel/mm/ksm/pages_sharing: 510990
/sys/kernel/mm/ksm/pages_to_scan: 100
/sys/kernel/mm/ksm/pages_unshared: 448079
/sys/kernel/mm/ksm/pages_volatile: 13595
/sys/kernel/mm/ksm/run: 1
/sys/kernel/mm/ksm/sleep_millisecs: 20
# free
total used free shared buffers cached
Mem: 4056468 2578728 1477740 0 3736 62156
-/+ buffers/cache: 2512836 1543632
Swap: 497848 25972 471876
Some recommendation about tunning of KSM?
I've no very clear about the difference between page_shared and
page_sharing. Somebody could clarify it?
Thanks for your reply.
Regards,
Daniel
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