Hi, Ryo I released bug-fixed range-bw(V1) controller several minutes ago Although several WARNINGs of checkpatch are remained, but patch file was strictly checked by checkpatch.pl It was very time-consuming job :) Thank you for your advice >> >> > I used fio 1.22. The below is a script which I actually ran. >> > >> > #!/bin/sh >> > dev1=/dev/sdb4 # SATA disk >> > echo "0 $(sudo blockdev --getsize $dev1) ioband $dev1 share2 0 0 >> > cgroup range-bw 0" | sudo dmsetup create ioband1 >> > >> > arg="--time_based --runtime=10 --ioengine=libaio --iodepth=50 \ >> > --direct=1 --norandommap" >> > >> > dmsetup message ioband1 0 attach 2 >> > dmsetup message ioband1 0 attach 3 >> > dmsetup message ioband1 0 min-bw 2:100 >> > dmsetup message ioband1 0 max-bw 2:100 >> > dmsetup message ioband1 0 min-bw 3:200 >> > dmsetup message ioband1 0 max-bw 3:200 >> >> I recommend it is better to use different value in min-bw and max-bw >> because its concept is to support range-bw with the minimum >> guaranteeing and maximum limitation. >> exampe - min-bw : 1024 / max-bw : 3072 >> >> > echo $$ > /cgroup/grp1/tasks >> > fio $arg --rw=randread --name=grp1 --filename=/dev/mapper/ioband1 \ >> > --output=r2-1.log & >> > echo $$ > /cgroup/grp2/tasks >> > fio $arg --rw=randread --name=grp2 --filename=/dev/mapper/ioband1 \ >> > --output=r2-2.log & >> > wait after bug-fix,I evaluated range-bw according to your configuration and test environment the result is in new relesed range-bw mail, [PATCH 0/2] and more detailed documentation is also available and it can be referred in [PATCH 1/2] Ryo, can you check the result ? > bio-cgroup is renamed to bklio-cgroup. :) > I don't clearly understand about range-bw but I think that you don't > need to consider to support them and it should be taken care of by > blkio-cgroup and the common part of dm-ioband, not the policy > implementation. Do you have any problems with AIO or delayed write? if you are interested in range-bw, more information is available to you and any questions and comments about range-bw is always welcom. :) Ryo, blkio-cgroup can be applied to dm-ioband ver1.10.3 without modification? I didn't check blkio-cgroup yet. Thank you >> -- >> Best Regards, >> Dong-Jae Kang > -- Best Regards, Dong-Jae Kang _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
