2015-09-10 22:10 GMT+02:00 Kilian Cavalotti <[email protected] >:
> > On Tue, Sep 8, 2015 at 5:01 AM, Marcin Stolarek > <[email protected]> wrote: > > using specified mountpoint, but... thats not real IOPS threshold. > Currently > > I don't how any linux mechanism that allows limitting process to > specified > > number of I/O operations per second. At our side we've been considering > > writing our own fusefs with this functionality. > > Wouldn't the cgroup blkio subsytem achieve this? > https://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt > > I see that there is support for it in Slurm code, but it has been > commented 2 years ago "until full kernel support is ready". > > https://github.com/SchedMD/slurm/blob/master/src/plugins/jobacct_gather/cgroup/jobacct_gather_cgroup_blkio.c > > Not sure exactly what this entails, but maybe kernel support is ready now? :) > It's probably a good question for rhel/centos/scientificlinux 7. I'm not sure if real support for lustre with rhel7 exist so... in a lot of production environments it may be still "until full kernel support is ready" :) cheers, marcin > > Cheers, > -- > Kilian >
