Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Johannes Weiner 2a2e48854d mm: vmscan: fix IO/refault regression in cache workingset transition ... Since commit 59dc76b0d4 ("mm: vmscan: reduce size of inactive file list") we noticed bigger IO spikes during changes in cache access patterns. The patch in question shrunk the inactive list size to leave more room for the current workingset in the presence of streaming IO. However, workingset transitions that previously happened on the inactive list are now pushed out of memory and incur more refaults to complete. This patch disables active list protection when refaults are being observed. This accelerates workingset transitions, and allows more of the new set to establish itself from memory, without eating into the ability to protect the established workingset during stable periods. The workloads that were measurably affected for us were hit pretty bad by it, with refault/majfault rates doubling and tripling during cache transitions, and the machines sustaining half-hour periods of 100% IO utilization, where they'd previously have sub-minute peaks at 60-90%. Stateful services that handle user data tend to be more conservative with kernel upgrades. As a result we hit most page cache issues with some delay, as was the case here. The severity seemed to warrant a stable tag. Fixes: 59dc76b0d4 ("mm: vmscan: reduce size of inactive file list") Link: http://lkml.kernel.org/r/20170404220052.27593-1-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@suse.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: <stable@vger.kernel.org> [4.7+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-05-03 15:52:11 -07:00
..
kasan	kasan: report only the first error by default	2017-03-31 17:13:30 -07:00
backing-dev.c	bdi: Drop 'parent' argument from bdi_register[_va]()	2017-04-20 12:09:55 -06:00
balloon_compaction.c
bootmem.c
cleancache.c
cma.c
cma.h
cma_debug.c
compaction.c	mm/compaction: ignore block suitable after check large free page	2017-05-03 15:52:09 -07:00
debug.c
debug_page_ref.c
dmapool.c	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
early_ioremap.c
fadvise.c
failslab.c
filemap.c	mm: tighten up the fault path a little	2017-05-03 15:52:09 -07:00
frame_vector.c
frontswap.c
gup.c	Revert "x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation"	2017-04-23 11:45:20 +02:00
highmem.c
huge_memory.c	mm: make ttu's return boolean	2017-05-03 15:52:10 -07:00
hugetlb.c	mm/hugetlb.c: don't call region_abort if region_chg fails	2017-03-31 17:13:30 -07:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h	mm: use is_migrate_highatomic() to simplify the code	2017-05-03 15:52:08 -07:00
interval_tree.c
Kconfig	mm: remove AVR32 arch special handling in mm/Kconfig	2017-05-01 09:36:31 +02:00
Kconfig.debug	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
khugepaged.c	mm: do not use double negation for testing page flags	2017-05-03 15:52:09 -07:00
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: fix section name for .data..ro_after_init	2017-03-31 17:13:30 -07:00
ksm.c	mm: make rmap_one boolean function	2017-05-03 15:52:10 -07:00
list_lru.c
maccess.c
madvise.c	mm: enable MADV_FREE for swapless system	2017-05-03 15:52:08 -07:00
Makefile	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
memblock.c	mm/memblock.c: fix memblock_next_valid_pfn()	2017-03-09 17:01:10 -08:00
memcontrol.c	mm: vmscan: fix IO/refault regression in cache workingset transition	2017-05-03 15:52:11 -07:00
memory-failure.c	mm: make ttu's return boolean	2017-05-03 15:52:10 -07:00
memory.c	Merge branch 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc	2017-04-02 10:33:48 -04:00
memory_hotplug.c	mm, vmscan: prevent kswapd sleeping prematurely due to mismatched classzone_idx	2017-05-03 15:52:09 -07:00
mempolicy.c	mm/mempolicy.c: fix error handling in set_mempolicy and mbind.	2017-04-08 10:57:55 -07:00
mempool.c
memtest.c
migrate.c	mm: make rmap_one boolean function	2017-05-03 15:52:10 -07:00
mincore.c	mm: remove shmem_mapping() shmem_zero_setup() duplicates	2017-02-24 17:46:56 -08:00
mlock.c	mm: make try_to_munlock() return void	2017-05-03 15:52:10 -07:00
mm_init.c
mmap.c	mm/mmap: replace SHM_HUGE_MASK with MAP_HUGE_MASK inside mmap_pgoff	2017-05-03 15:52:10 -07:00
mmu_context.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
mmu_notifier.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
mmzone.c
mprotect.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
mremap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
msync.c
nobootmem.c
nommu.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
oom_kill.c	oom: improve oom disable handling	2017-05-03 15:52:10 -07:00
page-writeback.c	mm/page-writeback.c: use setup_deferrable_timer	2017-05-03 15:52:08 -07:00
page_alloc.c	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
page_counter.c
page_ext.c	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
page_idle.c	mm: make rmap_one boolean function	2017-05-03 15:52:10 -07:00
page_io.c
page_isolation.c	mm: use is_migrate_isolate_page() to simplify the code	2017-05-03 15:52:08 -07:00
page_owner.c
page_poison.c	mm: enable page poisoning early at boot	2017-05-03 15:52:10 -07:00
page_vma_mapped.c	mm: fix page_vma_mapped_walk() for ksm pages	2017-04-08 00:47:48 -07:00
pagewalk.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
percpu-km.c
percpu-vm.c	percpu: remove unused chunk_alloc parameter from pcpu_get_pages()	2017-03-06 15:56:55 -05:00
percpu.c	Merge branch 'sched/core' into locking/core	2017-04-04 11:31:12 +02:00
pgtable-generic.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
process_vm_access.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
quicklist.c
readahead.c
rmap.c	mm: remove SWAP_[SUCCESS|AGAIN|FAIL]	2017-05-03 15:52:10 -07:00
rodata_test.c	mm: remove rodata_test_data export, add pr_fmt	2017-05-03 15:52:09 -07:00
shmem.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
slab.c	slab: avoid IPIs when creating kmem caches	2017-05-03 15:52:07 -07:00
slab.h
slab_common.c	kasan: drain quarantine of memcg slab objects	2017-02-24 17:46:56 -08:00
slob.c
slub.c
sparse-vmemmap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
sparse.c	mm/sparse: refine usemap_size() a little	2017-05-03 15:52:09 -07:00
swap.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	2017-05-03 15:52:08 -07:00
swap_cgroup.c	mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()	2017-04-08 00:47:49 -07:00
swap_slots.c	mm/swap_slots.c: add warning if swap slots cache failed to initialize	2017-05-03 15:52:10 -07:00
swap_state.c	mm, swap: fix comment in __read_swap_cache_async	2017-05-03 15:52:10 -07:00
swapfile.c	mm, swap: avoid lock swap_avail_lock when held cluster lock	2017-05-03 15:52:10 -07:00
truncate.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
usercopy.c	mm/usercopy: Drop extra is_vmalloc_or_module() check	2017-04-05 12:30:18 -07:00
userfaultfd.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
util.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
vmacache.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
vmalloc.c	A reasonably busy cycle for documentation this time around. There is a new	2017-05-02 10:21:17 -07:00
vmpressure.c	mm: vmpressure: fix sending wrong events on underflow	2017-02-24 17:46:56 -08:00
vmscan.c	mm: vmscan: fix IO/refault regression in cache workingset transition	2017-05-03 15:52:11 -07:00
vmstat.c	mm, vmstat: suppress pcp stats for unpopulated zones in zoneinfo	2017-05-03 15:52:08 -07:00
workingset.c	mm: vmscan: fix IO/refault regression in cache workingset transition	2017-05-03 15:52:11 -07:00
z3fold.c	z3fold: fix page locking in z3fold_alloc()	2017-04-13 18:24:20 -07:00
zbud.c
zpool.c
zsmalloc.c	zsmalloc: expand class bit	2017-04-13 18:24:21 -07:00
zswap.c	zswap: don't param_set_charp while holding spinlock	2017-02-27 18:43:45 -08:00