On Thu, Feb 09, 2012 at 08:02:20PM +0800, Hillf Danton wrote: > On Thu, Feb 9, 2012 at 7:36 PM, Johannes Stezenbach <js@xxxxxxxxx> wrote: > > On Wed, Feb 08, 2012 at 08:34:14PM +0800, Hillf Danton wrote: > >> And I want to ask kswapd to do less work, the attached diff is > >> based on 3.2.5, mind to test it with CONFIG_DEBUG_OBJECTS enabled? > > > > Sorry, for slow reply. The patch does not apply to 3.2.4 > > (3.2.5 only has the ASPM change which I don't want to > > try atm). Is the patch below correct? > > > > It is fine;) Hm, with 3.2.4 + patch + CONFIG_DEBUG_OBJECTS=y # CONFIG_DEBUG_OBJECTS_SELFTEST is not set # CONFIG_DEBUG_OBJECTS_FREE is not set CONFIG_DEBUG_OBJECTS_TIMERS=y CONFIG_DEBUG_OBJECTS_WORK=y CONFIG_DEBUG_OBJECTS_RCU_HEAD=y CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1 it looks good. Neither do I get the huge debug_objects_cache nor does it swap, after running a crosstool-ng toolchain build. Well, last time I also had one kvm -m 1G instance running. I'll try if that triggers the issue. So far: OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 689249 689235 99% 0.36K 31334 22 250672K debug_objects_cache 625185 609295 97% 0.42K 34735 18 277880K buffer_head 103834 103393 99% 1.74K 7245 18 231840K ext3_inode_cache 84348 82351 97% 0.58K 3124 27 49984K dentry MemTotal: 3938800 kB MemFree: 77136 kB Buffers: 68892 kB Cached: 2686376 kB SwapCached: 8 kB Active: 1343464 kB Inactive: 1584476 kB Active(anon): 78712 kB Inactive(anon): 145220 kB Active(file): 1264752 kB Inactive(file): 1439256 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 3903484 kB SwapFree: 3903248 kB Dirty: 64 kB Writeback: 0 kB AnonPages: 172676 kB Mapped: 41868 kB Shmem: 51260 kB Slab: 872400 kB SReclaimable: 549904 kB SUnreclaim: 322496 kB KernelStack: 1432 kB PageTables: 3172 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 5872884 kB Committed_AS: 474604 kB VmallocTotal: 34359738367 kB VmallocUsed: 345800 kB VmallocChunk: 34359386531 kB DirectMap4k: 12288 kB DirectMap2M: 4098048 kB Thanks, Johannes -- 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>