2014-11-24 16:57 GMT+03:00 Andrey Korolyov <andrey@xxxxxxx>:
> Hello Vasiliy,
>
> can you please check actual values via qemu-monitor-command domid '{
> "execute": "query-block"}', just to be sure to pin the potential
> problem to the emulator itself?
virsh qemu-monitor-command 11151 '{ "execute": "query-block"}' | jq '.'
{
"return": [
{
"io-status": "ok",
"device": "drive-scsi0-0-0-0",
"locked": false,
"removable": false,
"inserted": {
"iops_rd": 0,
"image": {
"virtual-size": 21474836480,
"filename": "/dev/vg3/11151",
"format": "raw",
"actual-size": 0,
"dirty-flag": false
},
"iops_wr": 0,
"ro": false,
"backing_file_depth": 0,
"drv": "raw",
"iops": 5000,
"bps_wr": 0,
"encrypted": false,
"bps": 0,
"bps_rd": 0,
"iops_max": 500,
"file": "/dev/vg3/11151",
"encryption_key_missing": false
},
"type": "unknown"
}
],
"id": "libvirt-22"
}
i'm used this site
http://www.ssdfreaks.com/content/599/how-to-convert-mbps-to-iops-or-calculate-iops-from-mbs
root@11151:~# dd if=/dev/sda bs=4K of=/dev/null
5242880+0 records in
5242880+0 records out
21474836480 bytes (21 GB) copied, 45.2557 s, 475 MB/s
so in case of 5000 iops i need to get only 19-20 MB/s
--
Vasiliy Tolstov,
e-mail: v.tolstov@xxxxxxxxx
jabber: vase@xxxxxxxxx
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