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[PATCH v3 25/28] slub: create slabinfo file for memcg [message #46528 is a reply to message #46517]

Fri, 25 May 2012 13:03

Glauber Costa
Messages: 916
Registered: October 2011

Senior Member

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 c8a8cab..4c29e5f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4113,6 +4113,33 @@ 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

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[Message index]

		[PATCH v3 00/28] kmem limitation for memcg By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 02/28] memcg: Always free struct memcg through schedule_work() By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 09/28] kmem slab accounting basic infrastructure By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 08/28] res_counter: don't force return value checking in res_counter_charge_nofail By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 03/28] slab: rename gfpflags to allocflags By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 01/28] slab: move FULL state transition to an initcall By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 18/28] slub: charge allocation to a memcg By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 18/28] slub: charge allocation to a memcg By: Christoph Lameter on Tue, 29 May 2012 14:51
		Re: [PATCH v3 18/28] slub: charge allocation to a memcg By: Glauber Costa on Tue, 29 May 2012 16:06
		[PATCH v3 20/28] memcg: disable kmem code when not in use. By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 22/28] memcg/slub: shrink dead caches By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 19/28] slab: per-memcg accounting of slab caches By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 19/28] slab: per-memcg accounting of slab caches By: Christoph Lameter on Tue, 29 May 2012 14:52
		Re: [PATCH v3 19/28] slab: per-memcg accounting of slab caches By: Glauber Costa on Tue, 29 May 2012 16:07
		Re: [PATCH v3 19/28] slab: per-memcg accounting of slab caches By: Glauber Costa on Tue, 29 May 2012 16:13
		[PATCH v3 21/28] memcg: destroy memcg caches By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 25/28] slub: create slabinfo file for memcg By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Christoph Lameter on Tue, 29 May 2012 14:47
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Tue, 29 May 2012 16:00
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 12:17
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 12:26
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 12:34
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 12:38
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 13:11
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 13:09
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 13:04
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 13:06
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 13:37
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 13:37
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 13:53
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 13:55
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Wed, 30 May 2012 15:33
		Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 30 May 2012 16:16
		[PATCH v3 24/28] memcg: Per-memcg memory.kmem.slabinfo file. By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 06/28] slab: use obj_size field of struct kmem_cache when not debugging By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 10/28] slab/slub: struct memcg_params By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Christoph Lameter on Tue, 29 May 2012 14:27
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Glauber Costa on Tue, 29 May 2012 15:50
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Christoph Lameter on Tue, 29 May 2012 16:33
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Glauber Costa on Tue, 29 May 2012 16:36
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Christoph Lameter on Tue, 29 May 2012 16:52
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Glauber Costa on Tue, 29 May 2012 16:59
		Re: [PATCH v3 12/28] slab: pass memcg parameter to kmem_cache_create By: Frederic Weisbecker on Wed, 30 May 2012 11:01
		[PATCH v3 14/28] slab: create duplicate cache By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 15/28] slub: always get the cache from its page in kfree By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 15/28] slub: always get the cache from its page in kfree By: Christoph Lameter on Tue, 29 May 2012 14:42
		Re: [PATCH v3 15/28] slub: always get the cache from its page in kfree By: Glauber Costa on Tue, 29 May 2012 15:59
		[PATCH v3 17/28] skip memcg kmem allocations in specified code regions By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Tue, 29 May 2012 14:36
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Tue, 29 May 2012 15:56
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Tue, 29 May 2012 16:05
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Tue, 29 May 2012 17:05
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Tue, 29 May 2012 17:25
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Tue, 29 May 2012 17:27
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Tue, 29 May 2012 19:26
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Tue, 29 May 2012 19:40
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Tue, 29 May 2012 19:55
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Tue, 29 May 2012 20:08
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Tue, 29 May 2012 20:21
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Tue, 29 May 2012 20:25
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Tejun Heo on Wed, 30 May 2012 01:29
		Re: Re: [PATCH v3 13/28] slub: create duplicate cache By: James Bottomley on Wed, 30 May 2012 07:28
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Glauber Costa on Wed, 30 May 2012 07:54
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Tejun Heo on Wed, 30 May 2012 08:02
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Christoph Lameter on Wed, 30 May 2012 15:37
		Re: [PATCH v3 13/28] slub: create duplicate cache By: Suleiman Souhlal on Tue, 29 May 2012 20:57
		[PATCH v3 11/28] slub: consider a memcg parameter in kmem_create_cache By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 26/28] slub: track all children of a kmem cache By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 28/28] Documentation: add documentation for slab tracker for memcg By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 23/28] slab: Track all the memcg children of a kmem_cache. By: Glauber Costa on Fri, 25 May 2012 13:03
		[PATCH v3 27/28] memcg: propagate kmem limiting information to children By: Glauber Costa on Fri, 25 May 2012 13:03
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Michal Hocko on Fri, 25 May 2012 13:34
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Christoph Lameter on Fri, 25 May 2012 14:34
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Glauber Costa on Mon, 28 May 2012 08:32
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Christoph Lameter on Tue, 29 May 2012 15:07
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Glauber Costa on Tue, 29 May 2012 15:44
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Christoph Lameter on Tue, 29 May 2012 16:01
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Frederic Weisbecker on Thu, 07 June 2012 10:26
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Glauber Costa on Thu, 07 June 2012 10:53
		Re: [PATCH v3 00/28] kmem limitation for memcg By: Frederic Weisbecker on Thu, 07 June 2012 14:00
		Re: [PATCH v3 00/28] kmem limitation for memcg By: KAMEZAWA Hiroyuki on Thu, 14 June 2012 02:24

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