with dd? probably using "oflag=sync" (see "man dd" for details)
-- Fajar On Thu, Jul 17, 2014 at 3:41 PM, Divya Vyas <dv...@mvista.com> wrote: > Hi Fajar, > > Thanks for your reply . Can you please help me how can I test the assigned > bandwidth? > > > On Thu, Jul 17, 2014 at 1:54 PM, Fajar A. Nugraha <l...@fajar.net> wrote: > >> On Thu, Jul 17, 2014 at 3:18 PM, Divya Vyas <dv...@mvista.com> wrote: >> >>> Hi , >>> >>> I am using two containers on top of disk /dev/sda and I want to limit a >>> disk IO write speed to 1 mb/sec of one of the containers. >>> >>> I gave this command -> >>> echo "8:0 1048576" > >>> /sys/fs/cgroup/blkio//lxc/vm5/blkio.throttle.write_bps_device >>> But not getting the desired output. >>> >>> dd if=/dev/zero of=/dev/sda bs=512 count=1000 >>> 1000+0 records in >>> 1000+0 records out >>> 512000 bytes (512 kB) copied, 0.00180087 s, 284 MB/s >>> >>> Does anyone tried limiting the disk IO of only one container? >>> >>> >> >> Short version: it won't work the way you want to. dd is async by default. >> >> http://www.mjmwired.net/kernel/Documentation/cgroups/blkio-controller.txt >> , look at the end. >> >> -- >> Fajar >> >> _______________________________________________ >> lxc-users mailing list >> lxc-users@lists.linuxcontainers.org >> http://lists.linuxcontainers.org/listinfo/lxc-users >> > > > _______________________________________________ > lxc-users mailing list > lxc-users@lists.linuxcontainers.org > http://lists.linuxcontainers.org/listinfo/lxc-users >
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