On Fri 12-10-12 11:53:23, Glauber Costa wrote:

On 10/11/2012 06:35 PM, Michal Hocko wrote:

quoted

On Mon 08-10-12 14:06:20, Glauber Costa wrote:

[...]

quoted

quoted

 Kernel memory limits are not imposed for the root cgroup. Usage for the root
-cgroup may or may not be accounted.
+cgroup may or may not be accounted. The memory used is accumulated into
+memory.kmem.usage_in_bytes, or in a separate counter when it makes sense.

Which separate counter? Is this about tcp kmem?

So far, yes, this is the only case that makes sense, and the fewer the
better. In any case it exists, and I wanted to be generic.

Add (currently tcp) or something similar
 
[...]

quoted

quoted

+    Kernel memory is effectively set as a percentage of the user memory. This

not a percentage it is subset of the user memory

Well, this is semantics. I can change, but for me it makes a lot of
sense to think of it in terms of a percentage, because it is easy to
administer. You don't actually write a percentage, which I tried to
clarify by using the term "effective set as a percentage".

I can still see somebody reading this and wondering why echo 50 > ...limit
didn't set a percentage...

-- 
Michal Hocko
SUSE Labs

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>