lkml.org 
[lkml]   [2012]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mm/memcg: add unlikely to mercg->move_charge_at_immigrate
On 06/18/2012 05:10 PM, Wanpeng Li wrote:
> From: Wanpeng Li <liwp@linux.vnet.ibm.com>
>
> move_charge_at_immigrate feature is disabled by default. Charges
> are moved only when you move mm->owner and it also add additional
> overhead.

How big is this overhead?

That's hardly a fast path. And if it happens to matter, it will be just
bigger when you enable it, and the compiler start giving the wrong hints
to the code.


\
 
 \ /
  Last update: 2012-06-18 16:02    [W:0.054 / U:0.208 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site