Hi,

I'm wondering how to explain following metrics I got from libvirt,

regarding memory stats for the two GUESTS running on my host.

1) virDomainGetXMLDesc() shows these values :

memmax (1024000.000000) memcurrent(1024000.000000)

memmax (2048000.000000) .memcurrent(2048000.000000)

2) As values returned by virDomainMemoryStats(), I got these values :

VIR_DOMAIN_MEMORY_STAT_ACTUAL_BALLOON:

active_balloon (1024000.000000)

active_balloon (2048000.000000)

VIR_DOMAIN_MEMORY_STAT_RSS:

rss(1194195.312500)

rss(2039269.531250

3) By using cgroup counters "memory.usage_in_bytes" for both Guests, I got these values :

memusage (1 207 207 031 250)

memusage (2 834 503 906 250)

How is it possible to have a balloon size equal to memcurrent ?

What “memory.usage_in_bytes” stands for (it's the maximum value of the three metrics I got for each GUEST) ?

FYI , I use a 1.2.8 libvirt.

Thanks.

Reagrds,

J.P. Ribeauville

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