Can you elaborate on this please? I'm not directly familiar with
cgroups, I'd greatly appreciate a quick-and-dirty example of using BIO
cgroup to limit I/O bandwidth.
Limiting bandwidth definitely would ameliorate the problem for me; I
already use pv's bw-limiting feature to make btrfs send | btrfs receive
tolerable.
On 11/25/2013 07:25 AM, Austin S Hemmelgarn wrote:
2. allow the user to set a reasonable I/O bandwidth limit on the scrub
processes (you could already do this with the BIO cgroup, but it would
be nice to not need that to be compiled into the kernel to have this
happen)
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