Best Config KVM, Benchmark Disk Speed

Best Config KVM, Benchmark Disk Speed, to have the fastest and most stable configuration on KVM (1 Replies, Read 9936 times)

lsn_ro	January 17, 2014, 10:02 pm
Group: Member Post Group: Newbie Posts: 4 Status:	Hi, Code $ for x in $(seq 1 10); do echo $x $(dd if=/dev/zero of=test_data.bin oflag=dsync conv=fdatasync bs=104857600 count=1 2>&1 \| grep --only-matching -E "[0-9]+\.?[0-9]+ [kKmMgGtT]B/s"); done \| tee test_data_write_times.txt Results: 1 77.2 MB/s 2 78.4 MB/s 3 82.3 MB/s 4 74.2 MB/s 5 81.0 MB/s 6 109 MB/s 7 105 MB/s 8 83.6 MB/s 9 82.4 MB/s 10 93.6 MB/s The test was done with disk settings: <disk type='block' device='disk'> <driver name='qemu' cache='writeback' io='native'/> <source dev='/dev/vg_vms/vs1008'/> <target dev='vda' bus='virtio' /> </disk> The same test using the config: <disk type='block' device='disk'> <driver name='qemu' cache='default' /> <source dev='/dev/vg_vms/vs1008'/> <target dev='hda' bus='ide' /> </disk> Results: 1 13.3 MB/s 2 33.3 MB/s 3 29.1 MB/s 4 26.7 MB/s 5 35.0 MB/s 6 7.2 MB/s 7 22.5 MB/s 8 30.8 MB/s 9 37.2 MB/s 10 35.7 MB/s Dear Virtualizor team which is the fastest and safest configuration to use in production? L.S.N.
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