From: Glauber Costa <glommer@parallels.com> To: <linux-kernel@vger.kernel.org> Cc: <cgroups@vger.kernel.org>, <linux-mm@kvack.org>, <kamezawa.hiroyu@jp.fujitsu.com>, Tejun Heo <tj@kernel.org>, Li Zefan <lizefan@huawei.com>, Greg Thelen <gthelen@google.com>, Suleiman Souhlal <suleiman@google.com>, Michal Hocko <mhocko@suse.cz>, Johannes Weiner <hannes@cmpxchg.org>, <devel@openvz.org>, Glauber Costa <glommer@parallels.com>, Christoph Lameter <cl@linux.com>, Pekka Enberg <penberg@cs.helsinki.fi> Subject: [PATCH v2 27/29] slub: create slabinfo file for memcg Date: Fri, 11 May 2012 14:44:29 -0300 [thread overview] Message-ID: <1336758272-24284-28-git-send-email-glommer@parallels.com> (raw) In-Reply-To: <1336758272-24284-1-git-send-email-glommer@parallels.com> This patch implements mem_cgroup_slabinfo() for the slub. With that, we can also probe the used caches for it. Signed-off-by: Glauber Costa <glommer@parallels.com> CC: Christoph Lameter <cl@linux.com> CC: Pekka Enberg <penberg@cs.helsinki.fi> CC: Michal Hocko <mhocko@suse.cz> CC: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> CC: Johannes Weiner <hannes@cmpxchg.org> CC: Suleiman Souhlal <suleiman@google.com> --- mm/slub.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 0efcd77..afe29ef 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -4159,6 +4159,33 @@ struct kmem_cache *kmem_cache_dup(struct mem_cgroup *memcg, int mem_cgroup_slabinfo(struct mem_cgroup *memcg, struct seq_file *m) { + struct kmem_cache *s; + int node; + unsigned long nr_objs = 0; + unsigned long nr_free = 0; + + seq_printf(m, "# name <active_objs> <num_objs> <objsize>\n"); + + down_read(&slub_lock); + list_for_each_entry(s, &slab_caches, list) { + if (s->memcg_params.memcg != memcg) + continue; + + for_each_online_node(node) { + struct kmem_cache_node *n = get_node(s, node); + + if (!n) + continue; + + nr_objs += atomic_long_read(&n->total_objects); + nr_free += count_partial(n, count_free); + } + + seq_printf(m, "%-17s %6lu %6lu %6u\n", s->name, + nr_objs - nr_free, nr_objs, s->size); + } + up_read(&slub_lock); + return 0; } #endif -- 1.7.7.6
WARNING: multiple messages have this Message-ID (diff)
From: Glauber Costa <glommer@parallels.com> To: linux-kernel@vger.kernel.org Cc: cgroups@vger.kernel.org, linux-mm@kvack.org, kamezawa.hiroyu@jp.fujitsu.com, Tejun Heo <tj@kernel.org>, Li Zefan <lizefan@huawei.com>, Greg Thelen <gthelen@google.com>, Suleiman Souhlal <suleiman@google.com>, Michal Hocko <mhocko@suse.cz>, Johannes Weiner <hannes@cmpxchg.org>, devel@openvz.org, Glauber Costa <glommer@parallels.com>, Christoph Lameter <cl@linux.com>, Pekka Enberg <penberg@cs.helsinki.fi> Subject: [PATCH v2 27/29] slub: create slabinfo file for memcg Date: Fri, 11 May 2012 14:44:29 -0300 [thread overview] Message-ID: <1336758272-24284-28-git-send-email-glommer@parallels.com> (raw) In-Reply-To: <1336758272-24284-1-git-send-email-glommer@parallels.com> This patch implements mem_cgroup_slabinfo() for the slub. With that, we can also probe the used caches for it. Signed-off-by: Glauber Costa <glommer@parallels.com> CC: Christoph Lameter <cl@linux.com> CC: Pekka Enberg <penberg@cs.helsinki.fi> CC: Michal Hocko <mhocko@suse.cz> CC: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> CC: Johannes Weiner <hannes@cmpxchg.org> CC: Suleiman Souhlal <suleiman@google.com> --- mm/slub.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 0efcd77..afe29ef 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -4159,6 +4159,33 @@ struct kmem_cache *kmem_cache_dup(struct mem_cgroup *memcg, int mem_cgroup_slabinfo(struct mem_cgroup *memcg, struct seq_file *m) { + struct kmem_cache *s; + int node; + unsigned long nr_objs = 0; + unsigned long nr_free = 0; + + seq_printf(m, "# name <active_objs> <num_objs> <objsize>\n"); + + down_read(&slub_lock); + list_for_each_entry(s, &slab_caches, list) { + if (s->memcg_params.memcg != memcg) + continue; + + for_each_online_node(node) { + struct kmem_cache_node *n = get_node(s, node); + + if (!n) + continue; + + nr_objs += atomic_long_read(&n->total_objects); + nr_free += count_partial(n, count_free); + } + + seq_printf(m, "%-17s %6lu %6lu %6u\n", s->name, + nr_objs - nr_free, nr_objs, s->size); + } + up_read(&slub_lock); + return 0; } #endif -- 1.7.7.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2012-05-11 17:52 UTC|newest] Thread overview: 167+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-05-11 17:44 [PATCH v2 00/29] kmem limitation for memcg Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 01/29] slab: dup name string Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-15 22:04 ` David Rientjes 2012-05-15 22:04 ` David Rientjes 2012-05-16 6:12 ` Glauber Costa 2012-05-16 6:12 ` Glauber Costa 2012-05-16 6:12 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 02/29] slub: fix slab_state for slub Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:51 ` Christoph Lameter 2012-05-11 17:51 ` Christoph Lameter 2012-05-15 21:55 ` David Rientjes 2012-05-15 21:55 ` David Rientjes 2012-05-15 21:55 ` David Rientjes 2012-05-16 6:10 ` Glauber Costa 2012-05-16 6:10 ` Glauber Costa 2012-05-16 6:10 ` Glauber Costa 2012-05-17 10:14 ` Glauber Costa 2012-05-17 10:14 ` Glauber Costa 2012-05-17 10:14 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 03/29] memcg: Always free struct memcg through schedule_work() Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 04/29] slub: always get the cache from its page in kfree Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:53 ` Christoph Lameter 2012-05-11 17:53 ` Christoph Lameter 2012-05-11 17:57 ` Glauber Costa 2012-05-11 17:57 ` Glauber Costa 2012-05-11 17:57 ` Glauber Costa 2012-05-11 18:06 ` Christoph Lameter 2012-05-11 18:06 ` Christoph Lameter 2012-05-11 18:11 ` Glauber Costa 2012-05-11 18:11 ` Glauber Costa 2012-05-11 18:11 ` Glauber Costa 2012-05-11 18:17 ` Christoph Lameter 2012-05-11 18:17 ` Christoph Lameter 2012-05-11 18:20 ` Glauber Costa 2012-05-11 18:20 ` Glauber Costa 2012-05-11 18:20 ` Glauber Costa 2012-05-11 18:32 ` Christoph Lameter 2012-05-11 18:32 ` Christoph Lameter 2012-05-11 18:32 ` Christoph Lameter 2012-05-11 18:42 ` Glauber Costa 2012-05-11 18:42 ` Glauber Costa 2012-05-11 18:42 ` Glauber Costa 2012-05-11 18:56 ` Christoph Lameter 2012-05-11 18:56 ` Christoph Lameter 2012-05-11 18:56 ` Christoph Lameter 2012-05-11 18:58 ` Glauber Costa 2012-05-11 18:58 ` Glauber Costa 2012-05-11 18:58 ` Glauber Costa 2012-05-11 19:09 ` Christoph Lameter 2012-05-11 19:09 ` Christoph Lameter 2012-05-11 19:11 ` Glauber Costa 2012-05-11 19:11 ` Glauber Costa 2012-05-11 19:11 ` Glauber Costa 2012-05-11 19:20 ` Christoph Lameter 2012-05-11 19:20 ` Christoph Lameter 2012-05-11 19:24 ` Glauber Costa 2012-05-11 19:24 ` Glauber Costa 2012-05-11 19:24 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 05/29] slab: rename gfpflags to allocflags Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:54 ` Christoph Lameter 2012-05-11 17:54 ` Christoph Lameter 2012-05-15 21:57 ` David Rientjes 2012-05-15 21:57 ` David Rientjes 2012-05-11 17:44 ` [PATCH v2 06/29] memcg: Make it possible to use the stock for more than one page Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 07/29] memcg: Reclaim when more than one page needed Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 08/29] slab: use obj_size field of struct kmem_cache when not debugging Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 09/29] memcg: change defines to an enum Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 10/29] res_counter: don't force return value checking in res_counter_charge_nofail Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 11/29] cgroups: ability to stop res charge propagation on bounded ancestor Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-15 2:59 ` KAMEZAWA Hiroyuki 2012-05-15 2:59 ` KAMEZAWA Hiroyuki 2012-05-16 6:16 ` Glauber Costa 2012-05-16 6:16 ` Glauber Costa 2012-05-16 6:16 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 12/29] kmem slab accounting basic infrastructure Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 13/29] slab/slub: struct memcg_params Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 14/29] slub: consider a memcg parameter in kmem_create_cache Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 15/29] slab: pass memcg parameter to kmem_cache_create Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 16/29] slub: create duplicate cache Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 17/29] slab: " Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 18/29] memcg: kmem controller charge/uncharge infrastructure Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-15 2:57 ` KAMEZAWA Hiroyuki 2012-05-15 2:57 ` KAMEZAWA Hiroyuki 2012-05-16 6:42 ` Glauber Costa 2012-05-16 6:42 ` Glauber Costa 2012-05-16 8:18 ` KAMEZAWA Hiroyuki 2012-05-16 8:18 ` KAMEZAWA Hiroyuki 2012-05-16 8:25 ` Glauber Costa 2012-05-16 8:25 ` Glauber Costa 2012-05-16 8:25 ` Glauber Costa 2012-05-16 9:15 ` KAMEZAWA Hiroyuki 2012-05-16 9:15 ` KAMEZAWA Hiroyuki 2012-05-16 9:15 ` KAMEZAWA Hiroyuki 2012-05-11 17:44 ` [PATCH v2 19/29] skip memcg kmem allocations in specified code regions Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-15 2:46 ` KAMEZAWA Hiroyuki 2012-05-15 2:46 ` KAMEZAWA Hiroyuki 2012-05-16 6:19 ` Glauber Costa 2012-05-16 6:19 ` Glauber Costa 2012-05-16 6:19 ` Glauber Costa 2012-05-16 7:55 ` KAMEZAWA Hiroyuki 2012-05-16 7:55 ` KAMEZAWA Hiroyuki 2012-05-16 7:55 ` KAMEZAWA Hiroyuki 2012-05-11 17:44 ` [PATCH v2 20/29] slub: charge allocation to a memcg Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 21/29] slab: per-memcg accounting of slab caches Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 22/29] memcg: disable kmem code when not in use Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 23/29] memcg: destroy memcg caches Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 24/29] memcg/slub: shrink dead caches Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 25/29] memcg: Track all the memcg children of a kmem_cache Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 26/29] memcg: Per-memcg memory.kmem.slabinfo file Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa [this message] 2012-05-11 17:44 ` [PATCH v2 27/29] slub: create slabinfo file for memcg Glauber Costa 2012-05-11 17:44 ` [PATCH v2 28/29] slub: track all children of a kmem cache Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 17:44 ` [PATCH v2 29/29] Documentation: add documentation for slab tracker for memcg Glauber Costa 2012-05-11 17:44 ` Glauber Costa 2012-05-11 18:05 ` [PATCH v2 00/29] kmem limitation " Glauber Costa 2012-05-11 18:05 ` Glauber Costa
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