Hi All
Is there a tool to monitor qemu-kvm guest vm memory usage ( free in guest vm)?
Nowadays, I have already researched some methods:
1. qemu-kvm process memory usage.
Since qemu-kvm process memory usage always increases as time goes on, it will not reflect the memory usage in vm.
2. virsh dommemstat
Just as method 1.
3. virsh qemu-monitor-command --hmp [domain name] "info mem"
(1) when guest vm memory size less than 4Gbytes, it will output something like this:
7f882000-7f883000 00001000 urw
7fbf8000-7fbf9000 00001000 urw
88000000-88001000 00001000 -rw
88002000-88003000 00001000 urw
88004000-88005000 00001000 urw
c9000000-c9001000 00001000 urw
e8bfe000-e8bff000 00001000 urw
ea000000-ea001000 00001000 urw
ffbfc000-ffbfd000 00001000 -rw
ffbfe000-ffbff000 00001000 urw
it shows pde info of PG_PRESENT_MASK, maybe has some relation with guest vm memory usage.
(2) when guest vm memory size larger than 4Gbytes, it will output noting.
Please help!!
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