Dear nbd maintainers/users,
Recently we found an annoying case: iostat shows the read/write IO requests
from nbd are very small (always 4kB exactly without any merges) on Centos64.
And we tried tuning various kernel parameters but failed to solve it. Any
suggestions?
Thank you all
Iostat as below:
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm
%util
sda 0.00 564.67 0.00 53.33 0.00 4944.00 92.70 0.03 0.47 0.15 0.80
nb0 0.00 0.00 0.00 8765.33 0.00 70122.67 8.00 144.72 16.48 0.11 100.00
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avg
