On Wed, Aug 18, 2010 at 6:01 PM, Arve Hjønnevåg <arve@xxxxxxxxxxx> wrote: > On Wed, Aug 18, 2010 at 5:54 PM, Minchan Kim <minchan.kim@xxxxxxxxx> wrote: >> On Thu, Aug 19, 2010 at 12:26 AM, Alejandro Riveira Fernández >> <ariveira@xxxxxxxxx> wrote: >>> El Thu, 19 Aug 2010 00:18:57 +0900 >>> Minchan Kim <minchan.kim@xxxxxxxxx> escribió: >>> >>>> Hello Android forks, >>> [ ... ] >>>> >>>> I saw the advertisement phrase in this[1]. >>>> >>>> "Kernel Memory Management Boost: Improved memory reclaim by up to 20x, >>>> which results in faster app switching and smoother performance >>>> on memory-constrained devices." >>>> >>>> But I can't find any code for it in android kernel git tree. >>> >>> Maybe the enhancements are on the Dalvik VM (shooting in the dark here) >> >> Thanks. >> Android guys! Could you confirm this? >> > > It is more likely referring to this change: > There are other changes after the one mentioned that remove the requirement for CONFIG_PROFILING (and the subsequent task_struct leak that was caused by it) -san > Author: San Mehat <san@xxxxxxxxxx> > Date: Wed May 5 11:38:42 2010 -0700 > > staging: android: lowmemkiller: Substantially reduce overhead during reclaim > > This patch optimizes lowmemkiller to not do any work when it has > an outstanding > kill-request. This greatly reduces the pressure on the task_list lock > (improving interactivity), as well as improving the vmscan performance > when under heavy memory pressure (by up to 20x in tests). > > Note: For this enhancement to work, you need CONFIG_PROFILING > > Signed-off-by: San Mehat <san@xxxxxxxxxx> > > > -- > Arve Hjønnevåg > -- San Mehat | Staff Software Engineer | Infrastructure | Google Inc. 415.366.6172 (san@xxxxxxxxxx) -- 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