The patch titled memcg: add memory.numastat api for numa statistics has been added to the -mm tree. Its filename is memcg-add-memorynumastat-api-for-numa-statistics.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: memcg: add memory.numastat api for numa statistics From: Ying Han <yinghan@xxxxxxxxxx> The new API exports numa_maps per-memcg basis. This is a piece of useful information where it exports per-memcg page distribution across real numa nodes. One of the usecases is evaluating application performance by combining this information w/ the cpu allocation to the application. The output of the memory.numastat tries to follow w/ simiar format of numa_maps like: total=<total pages> N0=<node 0 pages> N1=<node 1 pages> ... file=<total file pages> N0=<node 0 pages> N1=<node 1 pages> ... anon=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ... unevictable=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ... And we have per-node: total = file + anon + unevictable $ cat /dev/cgroup/memory/memory.numa_stat total=250020 N0=87620 N1=52367 N2=45298 N3=64735 file=225232 N0=83402 N1=46160 N2=40522 N3=55148 anon=21053 N0=3424 N1=6207 N2=4776 N3=6646 unevictable=3735 N0=794 N1=0 N2=0 N3=2941 Signed-off-by: Ying Han <yinghan@xxxxxxxxxx> Cc: Balbir Singh <balbir@xxxxxxxxxx> Cc: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Acked-by: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx> Cc: Minchan Kim <minchan.kim@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memcontrol.c | 147 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 147 insertions(+) diff -puN mm/memcontrol.c~memcg-add-memorynumastat-api-for-numa-statistics mm/memcontrol.c --- a/mm/memcontrol.c~memcg-add-memorynumastat-api-for-numa-statistics +++ a/mm/memcontrol.c @@ -1089,6 +1089,91 @@ unsigned long mem_cgroup_zone_nr_lru_pag return MEM_CGROUP_ZSTAT(mz, lru); } +static unsigned long mem_cgroup_node_nr_file_lru_pages(struct mem_cgroup *memcg, + int nid) +{ + unsigned long ret; + + ret = mem_cgroup_get_zonestat_node(memcg, nid, LRU_INACTIVE_FILE) + + mem_cgroup_get_zonestat_node(memcg, nid, LRU_ACTIVE_FILE); + + return ret; +} + +static unsigned long mem_cgroup_nr_file_lru_pages(struct mem_cgroup *memcg) +{ + u64 total = 0; + int nid; + + for_each_node_state(nid, N_HIGH_MEMORY) + total += mem_cgroup_node_nr_file_lru_pages(memcg, nid); + + return total; +} + +static unsigned long mem_cgroup_node_nr_anon_lru_pages(struct mem_cgroup *memcg, + int nid) +{ + unsigned long ret; + + ret = mem_cgroup_get_zonestat_node(memcg, nid, LRU_INACTIVE_ANON) + + mem_cgroup_get_zonestat_node(memcg, nid, LRU_ACTIVE_ANON); + + return ret; +} + +static unsigned long mem_cgroup_nr_anon_lru_pages(struct mem_cgroup *memcg) +{ + u64 total = 0; + int nid; + + for_each_node_state(nid, N_HIGH_MEMORY) + total += mem_cgroup_node_nr_anon_lru_pages(memcg, nid); + + return total; +} + +static unsigned long +mem_cgroup_node_nr_unevictable_lru_pages(struct mem_cgroup *memcg, int nid) +{ + return mem_cgroup_get_zonestat_node(memcg, nid, LRU_UNEVICTABLE); +} + +static unsigned long +mem_cgroup_nr_unevictable_lru_pages(struct mem_cgroup *memcg) +{ + u64 total = 0; + int nid; + + for_each_node_state(nid, N_HIGH_MEMORY) + total += mem_cgroup_node_nr_unevictable_lru_pages(memcg, nid); + + return total; +} + +static unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg, + int nid) +{ + enum lru_list l; + u64 total = 0; + + for_each_lru(l) + total += mem_cgroup_get_zonestat_node(memcg, nid, l); + + return total; +} + +static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg) +{ + u64 total = 0; + int nid; + + for_each_node_state(nid, N_HIGH_MEMORY) + total += mem_cgroup_node_nr_lru_pages(memcg, nid); + + return total; +} + struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg, struct zone *zone) { @@ -3944,6 +4029,49 @@ mem_cgroup_get_total_stat(struct mem_cgr mem_cgroup_get_local_stat(iter, s); } +static int mem_control_numa_stat_show(struct seq_file *m, void *arg) +{ + int nid; + unsigned long total_nr, file_nr, anon_nr, unevictable_nr; + unsigned long node_nr; + struct cgroup *cont = m->private; + struct mem_cgroup *mem_cont = mem_cgroup_from_cont(cont); + + total_nr = mem_cgroup_nr_lru_pages(mem_cont); + seq_printf(m, "total=%lu", total_nr); + for_each_node_state(nid, N_HIGH_MEMORY) { + node_nr = mem_cgroup_node_nr_lru_pages(mem_cont, nid); + seq_printf(m, " N%d=%lu", nid, node_nr); + } + seq_putc(m, '\n'); + + file_nr = mem_cgroup_nr_file_lru_pages(mem_cont); + seq_printf(m, "file=%lu", file_nr); + for_each_node_state(nid, N_HIGH_MEMORY) { + node_nr = mem_cgroup_node_nr_file_lru_pages(mem_cont, nid); + seq_printf(m, " N%d=%lu", nid, node_nr); + } + seq_putc(m, '\n'); + + anon_nr = mem_cgroup_nr_anon_lru_pages(mem_cont); + seq_printf(m, "anon=%lu", anon_nr); + for_each_node_state(nid, N_HIGH_MEMORY) { + node_nr = mem_cgroup_node_nr_anon_lru_pages(mem_cont, nid); + seq_printf(m, " N%d=%lu", nid, node_nr); + } + seq_putc(m, '\n'); + + unevictable_nr = mem_cgroup_nr_unevictable_lru_pages(mem_cont); + seq_printf(m, "unevictable=%lu", unevictable_nr); + for_each_node_state(nid, N_HIGH_MEMORY) { + node_nr = mem_cgroup_node_nr_unevictable_lru_pages(mem_cont, + nid); + seq_printf(m, " N%d=%lu", nid, node_nr); + } + seq_putc(m, '\n'); + return 0; +} + static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft, struct cgroup_map_cb *cb) { @@ -3954,6 +4082,7 @@ static int mem_control_stat_show(struct memset(&mystat, 0, sizeof(mystat)); mem_cgroup_get_local_stat(mem_cont, &mystat); + for (i = 0; i < NR_MCS_STAT; i++) { if (i == MCS_SWAP && !do_swap_account) continue; @@ -4377,6 +4506,20 @@ static int mem_cgroup_oom_control_write( return 0; } +static const struct file_operations mem_control_numa_stat_file_operations = { + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int mem_control_numa_stat_open(struct inode *unused, struct file *file) +{ + struct cgroup *cont = file->f_dentry->d_parent->d_fsdata; + + file->f_op = &mem_control_numa_stat_file_operations; + return single_open(file, mem_control_numa_stat_show, cont); +} + static struct cftype mem_cgroup_files[] = { { .name = "usage_in_bytes", @@ -4440,6 +4583,10 @@ static struct cftype mem_cgroup_files[] .unregister_event = mem_cgroup_oom_unregister_event, .private = MEMFILE_PRIVATE(_OOM_TYPE, OOM_CONTROL), }, + { + .name = "numa_stat", + .open = mem_control_numa_stat_open, + }, }; #ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP _ Patches currently in -mm which might be from yinghan@xxxxxxxxxx are vmscan-change-shrink_slab-interfaces-by-passing-shrink_control.patch vmscan-change-shrink_slab-interfaces-by-passing-shrink_control-fix.patch vmscan-change-shrink_slab-interfaces-by-passing-shrink_control-fix-2.patch vmscan-change-shrinker-api-by-passing-shrink_control-struct.patch vmscan-change-shrinker-api-by-passing-shrink_control-struct-fix.patch vmscan-change-shrinker-api-by-passing-shrink_control-struct-fix-2.patch vmscan-change-shrinker-api-by-passing-shrink_control-struct-fix-3.patch mm-move-enum-vm_event_item-into-a-standalone-header-file.patch memcg-count-the-soft_limit-reclaim-in-global-background-reclaim.patch memcg-add-the-soft_limit-reclaim-in-global-direct-reclaim.patch memcg-reclaim-memory-from-nodes-in-round-robin-order.patch memcg-reclaim-memory-from-nodes-in-round-robin-fix.patch memcg-reclaim-memory-from-nodes-in-round-robin-fix-2.patch memcg-reclaim-memory-from-nodes-in-round-robin-order-fix.patch memcg-fix-get_scan_count-for-small-targets.patch memcg-remove-unused-retry-signal-from-reclaim.patch memcg-rename-mem_cgroup_zone_nr_pages-to-mem_cgroup_zone_nr_lru_pages.patch memcg-add-memorynumastat-api-for-numa-statistics.patch memcg-add-memorynumastat-api-for-numa-statistics-v5.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html