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* [PATCH 0/5] mm, slab: Make kmalloc_info[] contain all types of names
@ 2019-09-03 16:04 Pengfei Li
  2019-09-03 16:04 ` [PATCH 1/5] " Pengfei Li
                   ` (6 more replies)
  0 siblings, 7 replies; 25+ messages in thread
From: Pengfei Li @ 2019-09-03 16:04 UTC (permalink / raw)
  To: akpm
  Cc: cl, penberg, rientjes, iamjoonsoo.kim, linux-mm, linux-kernel,
	Pengfei Li

There are three types of kmalloc, KMALLOC_NORMAL, KMALLOC_RECLAIM
and KMALLOC_DMA.

The name of KMALLOC_NORMAL is contained in kmalloc_info[].name,
but the names of KMALLOC_RECLAIM and KMALLOC_DMA are dynamically
generated by kmalloc_cache_name().

Patch1 predefines the names of all types of kmalloc to save
the time spent dynamically generating names.

The other 4 patches did some cleanup work.

These changes make sense, and the time spent by new_kmalloc_cache()
has been reduced by approximately 36.3%.

                         Time spent by
                         new_kmalloc_cache()
5.3-rc7                       66264
5.3-rc7+patch                 42188

Pengfei Li (5):
  mm, slab: Make kmalloc_info[] contain all types of names
  mm, slab_common: Remove unused kmalloc_cache_name()
  mm, slab: Remove unused kmalloc_size()
  mm, slab_common: Make 'type' is enum kmalloc_cache_type
  mm, slab_common: Make initializing KMALLOC_DMA start from 1

 include/linux/slab.h |  20 ---------
 mm/slab.c            |   7 +--
 mm/slab.h            |   2 +-
 mm/slab_common.c     | 101 +++++++++++++++++++++++--------------------
 4 files changed, 59 insertions(+), 71 deletions(-)

-- 
2.21.0


^ permalink raw reply	[flat|nested] 25+ messages in thread

end of thread, other threads:[~2019-09-10  0:54 UTC | newest]

Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-09-03 16:04 [PATCH 0/5] mm, slab: Make kmalloc_info[] contain all types of names Pengfei Li
2019-09-03 16:04 ` [PATCH 1/5] " Pengfei Li
2019-09-09 14:59   ` Vlastimil Babka
2019-09-09 16:53     ` Pengfei Li
2019-09-09 16:53       ` Pengfei Li
2019-09-09 18:30       ` Rasmus Villemoes
2019-09-09 19:48         ` Vlastimil Babka
2019-09-10  0:52         ` Pengfei Li
2019-09-10  0:52           ` Pengfei Li
2019-09-03 16:04 ` [PATCH 2/5] mm, slab_common: Remove unused kmalloc_cache_name() Pengfei Li
2019-09-09 14:59   ` Vlastimil Babka
2019-09-09 16:54     ` Pengfei Li
2019-09-09 16:54       ` Pengfei Li
2019-09-03 16:04 ` [PATCH 3/5] mm, slab: Remove unused kmalloc_size() Pengfei Li
2019-09-09 15:07   ` Vlastimil Babka
2019-09-03 16:04 ` [PATCH 4/5] mm, slab_common: Make 'type' is enum kmalloc_cache_type Pengfei Li
2019-09-09 15:08   ` Vlastimil Babka
2019-09-03 16:04 ` [PATCH 5/5] mm, slab_common: Make initializing KMALLOC_DMA start from 1 Pengfei Li
2019-09-04 19:27 ` [PATCH 0/5] mm, slab: Make kmalloc_info[] contain all types of names Christopher Lameter
2019-09-04 19:27   ` Christopher Lameter
2019-09-05  0:40   ` Pengfei Li
2019-09-05  0:40     ` Pengfei Li
2019-09-05 12:25 ` Vlastimil Babka
2019-09-05 13:51   ` Pengfei Li
2019-09-05 13:51     ` Pengfei Li

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