Bug 4203 - memory cgroup controller has significant overhead
Summary: memory cgroup controller has significant overhead
Status: RESOLVED OLD
Alias: None
Product: Mageia
Classification: Unclassified
Component: RPM Packages (show other bugs)
Version: Cauldron
Hardware: All Linux
Priority: Normal normal
Target Milestone: ---
Assignee: Thomas Backlund
QA Contact:
URL:
Whiteboard:
Keywords: NEEDINFO
Depends on:
Blocks:
 
Reported: 2012-01-20 12:26 CET by Frederik Himpe
Modified: 2013-01-10 08:17 CET (History)
1 user (show)

See Also:
Source RPM: kernel
CVE:
Status comment:

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Description Frederik Himpe 2012-01-20 12:26:05 CET 
Up to now, Debian has always disabled the memory cgroup controller because it has significant overhead. I appears to be enabled in Mageia by default.

I read on the #debian-kernel IRC channel that upstream merged some patches which reduces the overhead. You might want to include these patches in mageia, or disactivate the memory cgroup controller by default if it's not strictly needed (it can be enabled in Debian with the boot parameter cgroup_enable=memory : http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534964).

12:00 < maks> "The memory control group naturalization patches have been merged. These patches eliminate the double-tracking of memory and, thus, substantially reduce the overhead associated with the 
              memory controller."

https://lwn.net/Articles/443241/
Comment 1 Marja Van Waes 2012-05-12 10:06:13 CEST 
Trying to ping 41 bug reports in one move, because nothing has happened with them for more than 3 months, they still have the status NEW or REOPENED, there is no "OK" on the Whiteboard and severity and priority are "normal" or higher.

Is this one still valid for Mageia 2 rc?

If it is and you're the assignee, please set status to ASSIGNED if you think this bug was assigned correctly. If for work flow reasons you can't do that, then please put OK on the whiteboard instead.
If it wasn't assigned correctly, please assign back to Bug Squad and explain.
Comment 2 Marja Van Waes 2012-05-26 13:09:15 CEST 
Hi,

This bug was filed against cauldron, but we do not have cauldron at the moment.

Please report whether this bug is still valid for Mageia 2.

Thanks :)

Cheers,
marja

Keywords: (none) => NEEDINFO

Comment 3 roelof Wobben 2013-01-10 08:17:41 CET 
Close this as old because there is no respons in half a year.
When someone wants to reopen it please provide details as the version of
mageia

Roelof

Status: NEW => RESOLVED
CC: (none) => r.wobben
Resolution: (none) => OLD
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