Question
What is causing slow disk
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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