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[PATCH 23/23] slub: create slabinfo file for memcg [message #46023 is a reply to message #45989]

Sun, 22 April 2012 23:53

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 1031d4d..495a4f1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4150,6 +4150,33 @@ void kmem_cache_drop_ref(struct kmem_cache *s)

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 00/23] slab+slub accounting for memcg By: Glauber Costa on Fri, 20 April 2012 21:57
		[PATCH 02/23] slub: always get the cache from its page in kfree By: Glauber Costa on Fri, 20 April 2012 21:57
		[PATCH 04/23] memcg: Make it possible to use the stock for more than one page. By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 04/23] memcg: Make it possible to use the stock for more than one page. By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 00:59
		[PATCH 03/23] slab: rename gfpflags to allocflags By: Glauber Costa on Fri, 20 April 2012 21:57
		[PATCH 07/23] change defines to an enum By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 07/23] change defines to an enum By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:18
		[PATCH 05/23] memcg: Reclaim when more than one page needed. By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 05/23] memcg: Reclaim when more than one page needed. By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:16
		[PATCH 09/23] kmem slab accounting basic infrastructure By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 09/23] kmem slab accounting basic infrastructure By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:32
		Re: [PATCH 09/23] kmem slab accounting basic infrastructure By: Glauber Costa on Wed, 25 April 2012 14:38
		Re: [PATCH 09/23] kmem slab accounting basic infrastructure By: KAMEZAWA Hiroyuki on Thu, 26 April 2012 00:08
		Re: [PATCH 09/23] kmem slab accounting basic infrastructure By: Suleiman Souhlal on Mon, 30 April 2012 19:33
		Re: [PATCH 09/23] kmem slab accounting basic infrastructure By: Glauber Costa on Wed, 02 May 2012 15:15
		[PATCH 08/23] don't force return value checking in res_counter_charge_nofail By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 08/23] don't force return value checking in res_counter_charge_nofail By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:28
		[PATCH 06/23] slab: use obj_size field of struct kmem_cache when not debugging By: Glauber Costa on Fri, 20 April 2012 21:57
		[PATCH 01/23] slub: don't create a copy of the name string in kmem_cache_create By: Glauber Costa on Fri, 20 April 2012 21:57
		[PATCH 10/23] slab/slub: struct memcg_params By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 10/23] slab/slub: struct memcg_params By: Suleiman Souhlal on Mon, 30 April 2012 19:42
		[PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: Glauber Costa on Fri, 20 April 2012 21:57
		Re: [PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: Frederic Weisbecker on Tue, 24 April 2012 14:03
		Re: [PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: Glauber Costa on Tue, 24 April 2012 14:27
		Re: [PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:38
		Re: [PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: Glauber Costa on Wed, 25 April 2012 14:37
		Re: [PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: Suleiman Souhlal on Mon, 30 April 2012 19:51
		Re: [PATCH 11/23] slub: consider a memcg parameter in kmem_create_cache By: Glauber Costa on Wed, 02 May 2012 15:18
		[PATCH 12/23] slab: pass memcg parameter to kmem_cache_create By: Glauber Costa on Sun, 22 April 2012 23:53
		Re: [PATCH 12/23] slab: pass memcg parameter to kmem_cache_create By: Suleiman Souhlal on Mon, 30 April 2012 19:54
		[PATCH 21/23] memcg: Track all the memcg children of a kmem_cache. By: Glauber Costa on Sun, 22 April 2012 23:53
		[PATCH 13/23] slub: create duplicate cache By: Glauber Costa on Sun, 22 April 2012 23:53
		Re: [PATCH 13/23] slub: create duplicate cache By: Frederic Weisbecker on Tue, 24 April 2012 14:18
		Re: [PATCH 13/23] slub: create duplicate cache By: Glauber Costa on Tue, 24 April 2012 14:37
		Re: [PATCH 13/23] slub: create duplicate cache By: Frederic Weisbecker on Thu, 26 April 2012 13:10
		Re: [PATCH 13/23] slub: create duplicate cache By: Suleiman Souhlal on Mon, 30 April 2012 20:15
		[PATCH 15/23] slab: create duplicate cache By: Glauber Costa on Sun, 22 April 2012 23:53
		[PATCH 14/23] slub: provide kmalloc_no_account By: Glauber Costa on Sun, 22 April 2012 23:53
		[PATCH 22/23] memcg: Per-memcg memory.kmem.slabinfo file. By: Glauber Costa on Sun, 22 April 2012 23:53
		[PATCH 16/23] slab: provide kmalloc_no_account By: Glauber Costa on Sun, 22 April 2012 23:53
		Re: [PATCH 16/23] slab: provide kmalloc_no_account By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:44
		Re: [PATCH 16/23] slab: provide kmalloc_no_account By: Glauber Costa on Wed, 25 April 2012 14:29
		Re: [PATCH 16/23] slab: provide kmalloc_no_account By: KAMEZAWA Hiroyuki on Thu, 26 April 2012 00:13
		[PATCH 18/23] slub: charge allocation to a memcg By: Glauber Costa on Sun, 22 April 2012 23:53
		[PATCH 17/23] kmem controller charge/uncharge infrastructure By: Glauber Costa on Sun, 22 April 2012 23:53
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: David Rientjes on Mon, 23 April 2012 22:25
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Tue, 24 April 2012 14:22
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Glauber Costa on Tue, 24 April 2012 14:40
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: David Rientjes on Tue, 24 April 2012 20:25
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Glauber Costa on Tue, 24 April 2012 21:36
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: David Rientjes on Tue, 24 April 2012 22:54
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 25 April 2012 14:43
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: David Rientjes on Tue, 24 April 2012 20:21
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Fri, 27 April 2012 11:38
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: David Rientjes on Fri, 27 April 2012 18:13
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: KAMEZAWA Hiroyuki on Wed, 25 April 2012 01:56
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 25 April 2012 14:44
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Frederic Weisbecker on Fri, 27 April 2012 12:22
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Suleiman Souhlal on Mon, 30 April 2012 20:56
		Re: [PATCH 17/23] kmem controller charge/uncharge infrastructure By: Glauber Costa on Wed, 02 May 2012 15:34
		[PATCH 19/23] slab: per-memcg accounting of slab caches By: Glauber Costa on Sun, 22 April 2012 23:53
		Re: [PATCH 19/23] slab: per-memcg accounting of slab caches By: Suleiman Souhlal on Mon, 30 April 2012 21:25
		Re: [PATCH 19/23] slab: per-memcg accounting of slab caches By: Glauber Costa on Wed, 02 May 2012 15:40
		[PATCH 23/23] slub: create slabinfo file for memcg By: Glauber Costa on Sun, 22 April 2012 23:53
		[PATCH 20/23] memcg: disable kmem code when not in use. By: Glauber Costa on Sun, 22 April 2012 23:53
		Re: [PATCH 00/23] slab+slub accounting for memcg By: Glauber Costa on Sun, 22 April 2012 23:59
		[PATCH 0/3] A few fixes for '[PATCH 00/23] slab+slub accounting for memcg' series By: Anton Vorontsov on Mon, 30 April 2012 09:59
		[PATCH 1/3] slab: Proper off-slabs handling when duplicating caches By: Anton Vorontsov on Mon, 30 April 2012 10:01
		[PATCH 2/3] slab: Fix imbalanced rcu locking By: Anton Vorontsov on Mon, 30 April 2012 10:01
		[PATCH 3/3] slab: Get rid of mem_cgroup_put_kmem_cache() By: Anton Vorontsov on Mon, 30 April 2012 10:02

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