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when use libvirt0.9.4 ,then memStats() just output a '{ }'.<br>
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Generally, it means your qemu returns empty result for<br>
monitor command query-balloon. Could you check the debug<br>
log to find out what the qemu monitor command returns<br>
actually?<br><br></blockquote><div>libvirt > 0.9.4 memStats() can get the memory stats,but it seems that the value does not match guest memory usage:</div><div>virsh # version </div><div>Compiled against library: libvir 0.9.11</div>
<div>Using library: libvir 0.9.11</div><div>Using API: QEMU 0.9.11</div><div>Running hypervisor: QEMU 1.0.94</div><div><br></div><div>virsh # dommemstat centos</div><div>actual 524288</div><div>rss 276252</div><div><br></div>
<div>while in the 'centos' guest:</div><div> [root@centos-guest ~]# free -k</div><div> total used free shared buffers cached</div><div>Mem: 511148 84784 426364 0 5708 32664</div>
<div>-/+ buffers/cache: 46412 464736</div><div>Swap: 2064376 0 2064376</div><div><br></div><div>what does the 'rss' mean? thanks.</div></div><br>