On Thu, 2012-02-23 at 17:51 +0400, Konstantin Khlebnikov wrote: > v3 changes: > * inactive-ratio reworked again, now it always calculated from from scratch > * hierarchical pte reference bits filter in memory-cgroup reclaimer > * fixed two bugs in locking, found by Hugh Dickins > * locking functions slightly simplified > * new patch for isolated pages accounting > * new patch with lru interleaving > > This patchset is based on next-20120210 > > git: https://github.com/koct9i/linux/commits/lruvec-v3 > > --- I am seeing an improvement of about 7% in throughput in a workload where I am doing parallel reading of files that are mmaped. The contention on lru_lock used to be 13% in the cpu profile on the __pagevec_lru_add code path. Now lock contention on this path drops to about 0.6%. I have 40 hyper-threaded enabled cpu cores running 80 mmaped file reading processes. So initial testing of this patch set looks encouraging. Tim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>