18 Mar
2019
18 Mar
'19
1:29 a.m.
Dear All, I have just noticed that my Hosted Engine has a strange I/O scheduler: Last login: Sun Mar 17 18:14:26 2019 from 192.168.1.43 [root@engine ~]# cat /sys/block/vda/queue/scheduler [mq-deadline] kyber none [root@engine ~]# Based on my experience anything than noop/none is useless and performance degrading for a VM. Is there any reason that we have this scheduler ? It is quite pointless to process (and delay) the I/O in the VM and then process (and again delay) on Host Level . If there is no reason to keep the deadline, I will open a bug about it. Best Regards, Strahil Nikolov