On 7 Oct 2020, Eric Wheeler said: > I always make my own cgroups with cgcreate, cgset, and cgexec. We're > using centos7 which is all systemd and I've never had a problem: Oh, maybe I'm panicking about nothing as usual then. Maybe this is all ancient systemd bugs that were fixed roughly when the Americas split off from Europe but which I've been worrying over without retesting ever since. :) > Something (hypothetically) like this: > cgcreate -g blkio:/my_bcache_settings > cgset -r blkio.bcache.bypass='read,write' my_bcache_settings > cgset -r blkio.bcache.writeback='write,meta' my_bcache_settings > > Then all you need to do is run this which isn't all that different from an > ionice invocation: > cgexec -g blkio:my_bcache_settings /usr/local/bin/some-program ... if it's that easy, I have no objections :) actually that looks significantly more expressive than what we have now. -- NULL && (void)
