(2012/04/25 23:38), Glauber Costa wrote: > On 04/24/2012 10:32 PM, KAMEZAWA Hiroyuki wrote: >> (2012/04/21 6:57), Glauber Costa wrote: >> >>> This patch adds the basic infrastructure for the accounting of the slab >>> caches. To control that, the following files are created: >>> >>> * memory.kmem.usage_in_bytes >>> * memory.kmem.limit_in_bytes >>> * memory.kmem.failcnt >>> * memory.kmem.max_usage_in_bytes >>> >>> They have the same meaning of their user memory counterparts. They reflect >>> the state of the "kmem" res_counter. >>> >>> The code is not enabled until a limit is set. This can be tested by the flag >>> "kmem_accounted". This means that after the patch is applied, no behavioral >>> changes exists for whoever is still using memcg to control their memory usage. >>> >> >> Hmm, res_counter never goes naeative ? > > Why would it? > > This one has more or less the same logic as the sock buffers. > > If we are not accounted, the caches don't get created. If the caches > don't get created, we don't release them. (this is modulo bugs, of course) Okay. Please note how the logic works in description or Doc. It's a bit complicated part. Thanks, -Kame -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
