Re: [patch] mm, memcg: avoid unnecessary function call when memcg is disabled

On 11/20/2012 08:23 AM, Kamezawa Hiroyuki wrote:

(2012/11/20 10:44), David Rientjes wrote:

quoted

While profiling numa/core v16 with cgroup_disable=memory on the command
line, I noticed mem_cgroup_count_vm_event() still showed up as high as
0.60% in perftop.

This occurs because the function is called extremely often even when
memcg
is disabled.

To fix this, inline the check for mem_cgroup_disabled() so we avoid the
unnecessary function call if memcg is disabled.

Signed-off-by: David Rientjes <redacted>

Acked-By: KAMEZAWA Hiroyuki <redacted>

I am fine with this as well.

Acked-by: Glauber Costa <redacted>