Hello. Actually it was my mistake. After some time using memory in guest (find /, cp bigfine, etc), res size of qemu process shrinks to expected value. Sorry for disturbing. Now i don't see any memory waste in guest and host when using 'base' memory + 'dimm' memory. Although i have one issue. When i start qemu via libvirt with 16GB mem and 1G current mem: (...) <memory unit='KiB'>16777216</memory> <currentMemory unit='KiB'>1048576</currentMemory> (...) Qemu starts, and balloon can't free memmory, so guest doesn't boot (It hangs or is looped in ' virtio_balloon virtio2: Out of puff! Can't get 1 pages'). I think this is because dimm memmory is not yet onlined, and balloon already tries to shring memory in guest. Best regards Piotr Rybicki W dniu 2015-06-18 o 23:23, Andrey Korolyov pisze:
Do You see similar results at Your side?
Best regards
Would you mind to share you argument set to an emulator? As far as I understood you are using plain ballooning with most results from above for which those numbers are expected. The case with 5+gig memory consumption for deflated 1G guest looks like a bug with mixed dimm/balloon configuration if you are tried against latest qemu, so please describe a setup a bit more verbosely too.