[Rack] Improvements to cgroups on m2.
Danny O'Brien
danny at spesh.com
Tue May 14 08:54:09 UTC 2013
Thank you for documenting this!
On Mon, May 13, 2013 at 4:58 PM, Ben Kochie <ben at nerp.net> wrote:
> I have made some improvements to the cgroup handling on m2.
>
> On boot, a number of things don't get setup correctly because threads were
> not being imported into the right container. This is fixed.
>
> I also added an on-boot updater that should catch everything that is
> managed by upstart:
>
> /usr/local/sbin/update-**upstart-cgroups.sh
>
> This script is safe to run at any time. It is useful if you need to
> adjust the limits for things in upstart.
>
> I also updated the usage tool to report percent of cgroup use.
>
> root at m2:~# get-cgroup-memory-use.sh
> in-use % max % limit cgroup
> ------------------------------**------------------------------**-
> 0 0% 0 0% 262144 users
> 1200 7% 1876 11% 16384 udevd
> 1856 11% 3536 22% 16384 rsyslogd
> 20784 8% 108100 41% 262144 posfix
> 113784 22% 227092 43% 524288 mysqld
> 9652 29% 19412 59% 32768 munin-node
> 1232 4% 1564 5% 32768 monit
> 29396 15% 58920 30% 196608 memcached
> 97592 37% 97800 37% 262144 mailman
> 1452 9% 2052 13% 16384 getty
> 692 4% 1512 9% 16384 dbus-daemon
> 460 0% 16384 6% 262144 cron
> 652 2% 1676 5% 32768 clamsmtp
> 78368 40% 196608 100% 196608 clamav-freshclam
> 239840 61% 393216 100% 393216 clamav-daemon
> 12356 19% 12480 19% 65536 bind9
> 1296 8% 2592 16% 16384 avahi-daemon
> 1032 6% 1700 10% 16384 auditd
> 184 1% 496 3% 16384 atd
> 107136 10% 295600 28% 1048576 apache2
> 164 1% 456 3% 16384 acpid
> ==============================**==============================**=
> 204792 10% 0 0% 2051776 Default
>
> -ben
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