On Tue, 19 Oct 2010 13:24:17 -0500 "Steven J. Magnani" <steve@xxxxxxxxxxxxxxx> wrote: > On Tue, 2010-10-19 at 21:18 +0530, Balbir Singh wrote: > > * Steven J. Magnani <steve@xxxxxxxxxxxxxxx> [2010-10-19 07:34:14]: > > > > > Add the necessary calls to track VM anonymous page usage (only). > > > > > > V2 changes: > > > * Added update of memory cgroup documentation > > > * Clarify use of 'file' to distinguish anonymous mappings > > > > > > Signed-off-by: Steven J. Magnani <steve@xxxxxxxxxxxxxxx> > > > --- > > > diff -uprN a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt > > > --- a/Documentation/cgroups/memory.txt 2010-10-05 09:14:36.000000000 -0500 > > > +++ b/Documentation/cgroups/memory.txt 2010-10-19 07:28:04.000000000 -0500 > > > @@ -34,6 +34,7 @@ Current Status: linux-2.6.34-mmotm(devel > > > > > > Features: > > > - accounting anonymous pages, file caches, swap caches usage and limiting them. > > > + NOTE: On NOMMU systems, only anonymous pages are accounted. > > > - private LRU and reclaim routine. (system's global LRU and private LRU > > > work independently from each other) > > > - optionally, memory+swap usage can be accounted and limited. > > > @@ -640,7 +641,30 @@ At reading, current status of OOM is sho > > > under_oom 0 or 1 (if 1, the memory cgroup is under OOM, tasks may > > > be stopped.) > > > > > > -11. TODO > > > +11. NOMMU Support > <snip> > > > + > > > +At the present time, only anonymous pages are included in NOMMU memory cgroup > > > +accounting. > > > > What is the reason for tracking just anonymous memory? > > Tracking more than that is beyond my current scope, and perhaps of > limited benefit under an assumption that NOMMU systems don't usually > work with large files. The limitations of the implementation are > documented, so hopefully anyone who needs more functionality will know > that they need to implement it. > What happens at reaching limit ? memory can be reclaimed ? Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>