linux/mm
Dennis Zhou 30a5b5367e percpu: expose statistics about percpu memory via debugfs
There is limited visibility into the use of percpu memory leaving us
unable to reason about correctness of parameters and overall use of
percpu memory. These counters and statistics aim to help understand
basic statistics about percpu memory such as number of allocations over
the lifetime, allocation sizes, and fragmentation.

New Config: PERCPU_STATS

Signed-off-by: Dennis Zhou <dennisz@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2017-06-20 15:31:38 -04:00
..
kasan mm, vmalloc: use __GFP_HIGHMEM implicitly 2017-05-08 17:15:13 -07:00
Kconfig percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
Kconfig.debug mm: enable page poisoning early at boot 2017-05-03 15:52:10 -07:00
Makefile percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
backing-dev.c bdi: Drop 'parent' argument from bdi_register[_va]() 2017-04-20 12:09:55 -06:00
balloon_compaction.c mm: balloon: use general non-lru movable page feature 2016-07-26 16:19:19 -07:00
bootmem.c mm/bootmem.c: cosmetic improvement of code readability 2017-02-22 16:41:29 -08:00
cleancache.c cleancache: constify cleancache_ops structure 2016-01-27 09:09:57 -05:00
cma.c cma: Introduce cma_for_each_area 2017-04-18 20:41:12 +02:00
cma.h cma: Store a name in the cma structure 2017-04-18 20:41:12 +02:00
cma_debug.c cma: Store a name in the cma structure 2017-04-18 20:41:12 +02:00
compaction.c mm, compaction: finish whole pageblock to reduce fragmentation 2017-05-08 17:15:10 -07:00
debug.c mm, debug: print raw struct page data in __dump_page() 2016-12-12 18:55:08 -08:00
debug_page_ref.c mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
dmapool.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
early_ioremap.c mm/early_ioremap: use offset_in_page macro 2015-11-05 19:34:48 -08:00
fadvise.c mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED 2016-12-20 09:48:46 -08:00
failslab.c mm: fault-inject take over bootstrap kmem_cache check 2016-03-15 16:55:16 -07:00
filemap.c Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-05-09 09:01:21 -07:00
frame_vector.c treewide: use kv[mz]alloc* rather than opencoded variants 2017-05-08 17:15:13 -07:00
frontswap.c mm, frontswap: convert frontswap_enabled to static key 2016-07-26 16:19:19 -07:00
gup.c mm/gup.c: fix access_ok() argument type 2017-05-03 15:52:12 -07:00
highmem.c mm/highmem: make nr_free_highpages() handles all highmem zones by itself 2016-05-19 19:12:14 -07:00
huge_memory.c mm/huge_memory.c: deposit a pgtable for DAX PMD faults when required 2017-05-08 17:15:15 -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 mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size 2016-05-20 17:58:30 -07:00
hwpoison-inject.c mm: hwpoison: call shake_page() unconditionally 2017-05-03 15:52:12 -07:00
init-mm.c mm: Add a user_ns owner to mm_struct and fix ptrace permission checks 2016-11-22 11:49:48 -06:00
internal.h mm, compaction: finish whole pageblock to reduce fragmentation 2017-05-08 17:15:10 -07:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
khugepaged.c mm: do not use double negation for testing page flags 2017-05-03 15:52:09 -07:00
kmemcheck.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
kmemleak-test.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
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 mm/list_lru.c: avoid error-path NULL pointer deref 2016-10-27 18:43:42 -07:00
maccess.c x86: remove more uaccess_32.h complexity 2016-05-22 17:21:27 -07:00
madvise.c mm/madvise: move up the behavior parameter validation 2017-05-03 15:52:11 -07:00
memblock.c memblock: add memblock_cap_memory_range() 2017-04-05 18:26:50 +01:00
memcontrol.c mm: memcontrol: use node page state naming scheme for memcg 2017-05-03 15:52:11 -07:00
memory-failure.c mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page 2017-05-03 15:52:12 -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 Revert "mm, mempool: only set __GFP_NOMEMALLOC if there are free elements" 2016-07-28 16:07:41 -07:00
memtest.c memtest: remove unused header files 2015-09-08 15:35:28 -07:00
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 mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
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 mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist() 2017-02-22 16:41:29 -08:00
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 mm/msync: use offset_in_page macro 2015-11-05 19:34:48 -08:00
nobootmem.c mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping 2016-10-11 15:06:33 -07:00
nommu.c mm, vmalloc: use __GFP_HIGHMEM implicitly 2017-05-08 17:15:13 -07:00
oom_kill.c oom: improve oom disable handling 2017-05-03 15:52:10 -07:00
page-writeback.c Add GETFSMAP support; some performance improvements for very large 2017-05-08 11:30:05 -07:00
page_alloc.c mm: introduce memalloc_noreclaim_{save,restore} 2017-05-08 17:15:15 -07:00
page_counter.c mm: page_counter: let page_counter_try_charge() return bool 2015-11-05 19:34:48 -08:00
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 writeback: add wbc_to_write_flags() 2016-11-02 10:24:03 -06:00
page_isolation.c mm, page_alloc: count movable pages when stealing from pageblock 2017-05-08 17:15:10 -07:00
page_owner.c mm/page_owner: don't define fields on struct page_ext by hard-coding 2016-10-07 18:46:27 -07:00
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-internal.h percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
percpu-km.c percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
percpu-stats.c percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
percpu-vm.c percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
percpu.c percpu: expose statistics about percpu memory via debugfs 2017-06-20 15:31:38 -04:00
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 fix Christoph's email addresses 2016-03-17 15:09:34 -07:00
readahead.c mm: don't cap request size based on read-ahead setting 2016-12-12 18:55:08 -08:00
rmap.c mm: memcontrol: use node page state naming scheme for memcg 2017-05-03 15:52:11 -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: remove synchronous synchronize_sched() from memcg cache deactivation path 2017-02-22 16:41:27 -08:00
slab_common.c kasan: drain quarantine of memcg slab objects 2017-02-24 17:46:56 -08:00
slob.c slab: introduce __kmemcg_cache_deactivate() 2017-02-22 16:41:27 -08:00
slub.c slub: make sysfs directories for memcg sub-caches optional 2017-02-22 16:41:27 -08:00
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: use kvzalloc to allocate some swap data structures 2017-05-08 17:15:13 -07:00
swap_state.c mm, swap: use kvzalloc to allocate some swap data structures 2017-05-08 17:15:13 -07:00
swapfile.c mm, swap: use kvzalloc to allocate some swap data structures 2017-05-08 17:15:13 -07:00
truncate.c mm/truncate: avoid pointless cleancache_invalidate_inode() calls. 2017-05-03 15:52:12 -07:00
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 mm, vmalloc: use __GFP_HIGHMEM implicitly 2017-05-08 17:15:13 -07:00
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 mm, vmalloc: use __GFP_HIGHMEM implicitly 2017-05-08 17:15:13 -07:00
vmpressure.c mm: vmpressure: fix sending wrong events on underflow 2017-02-24 17:46:56 -08:00
vmscan.c mm: introduce memalloc_noreclaim_{save,restore} 2017-05-08 17:15:15 -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: memcontrol: use node page state naming scheme for memcg 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 mm/zbud.c: use list_last_entry() instead of list_tail_entry() 2016-01-15 11:40:52 -08:00
zpool.c mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
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