Messages in this thread |  | | | From | KOSAKI Motohiro <> | | Subject | Re: [RFC][PATCH v2 0/8] vmscan: AIM7 scalability improvement | | Date | Thu, 10 Dec 2009 16:53:24 +0900 (JST) |
| |
> Larry Woodman reported current VM has big performance regression when > AIM7 benchmark. It use very much processes and fork/exit/page-fault frequently. > (i.e. it makes serious lock contention of ptelock and anon_vma-lock.) > > At 2.6.28, we removed calc_reclaim_mapped() and it made vmscan, then > vmscan always call page_referenced() although VM pressure is low. > It increased lock contention more, unfortunately. > > > Larry, can you please try this patch series on your big box?
this patches is made ontop mmotm1208.
|  |