Messages in this thread | | | From | Vladimir Davydov <> | Subject | [PATCH -mm 0/3] slub: make dead caches discard free slabs immediately | Date | Mon, 26 Jan 2015 15:55:26 +0300 |
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Hi,
The kmem extension of the memory cgroup is almost usable now. There is, in fact, the only serious issue left: per memcg kmem caches may pin the owner cgroup for indefinitely long. This is, because a slab cache may keep empty slab pages in its private structures to optimize performance, while we take a css reference per each charged kmem page.
The issue is only relevant to SLUB, because SLAB periodically reaps empty slabs. This patch set fixes this issue for SLUB. For details, please see patch 3.
Thanks,
Vladimir Davydov (3): slub: don't fail kmem_cache_shrink if slab placement optimization fails slab: zap kmem_cache_shrink return value slub: make dead caches discard free slabs immediately
include/linux/slab.h | 2 +- mm/slab.c | 9 +++++++-- mm/slab.h | 2 +- mm/slab_common.c | 21 +++++++++++++------- mm/slob.c | 3 +-- mm/slub.c | 53 +++++++++++++++++++++++++++++++++++--------------- 6 files changed, 61 insertions(+), 29 deletions(-)
-- 1.7.10.4
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