Question

What is causing slow disk

Posted December 3, 2013 3.2k views
One of my Ubuntu droplets has a real problem on disk. lsb_release -a output: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 13.10 Release: 13.10 Codename: saucy ioping . -c 10 output: 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=1 time=896 us 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=2 time=654 us 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=3 time=9.8 ms 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=4 time=1.5 s 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=5 time=280.2 ms 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=6 time=25.4 ms 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=7 time=628 us 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=8 time=1.4 ms 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=9 time=1.0 ms 4.0 kb from . (ext4 /dev/disk/by-label/DOROOT): request=10 time=1.1 ms --- . (ext4 /dev/disk/by-label/DOROOT) ioping statistics --- 10 requests completed in 10.8 s, 5 iops, 22.5 kb/s min/avg/max/mdev = 628 us / 177.7 ms / 1.5 s / 433.9 ms i run this ioping after stopping all background services.

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