From: Pengfei Li <lpf.vector@gmail.com>
To: akpm@linux-foundation.org
Cc: vbabka@suse.cz, cl@linux.com, penberg@kernel.org,
rientjes@google.com, iamjoonsoo.kim@lge.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, guro@fb.com,
Pengfei Li <lpf.vector@gmail.com>
Subject: [PATCH v3 0/4] mm, slab: Make kmalloc_info[] contain all types of names
Date: Tue, 10 Sep 2019 09:26:48 +0800 [thread overview]
Message-ID: <20190910012652.3723-1-lpf.vector@gmail.com> (raw)
Changes in v3
--
1. restore __initconst (patch 1/4)
2. rename patch 3/4
3. add more clarification for patch 4/4
Changes in v2
--
1. remove __initconst (patch 1/5)
2. squash patch 2/5
3. add ack tag from Vlastimil Babka
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 (4):
mm, slab: Make kmalloc_info[] contain all types of names
mm, slab: Remove unused kmalloc_size()
mm, slab_common: use enum kmalloc_cache_type to iterate over kmalloc
caches
mm, slab_common: Make the loop for 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
next reply other threads:[~2019-09-10 1:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-10 1:26 Pengfei Li [this message]
2019-09-10 1:26 ` [PATCH v3 1/4] mm, slab: Make kmalloc_info[] contain all types of names Pengfei Li
2019-09-10 1:26 ` [PATCH v3 2/4] mm, slab: Remove unused kmalloc_size() Pengfei Li
2019-09-10 1:26 ` [PATCH v3 3/4] mm, slab_common: use enum kmalloc_cache_type to iterate over kmalloc caches Pengfei Li
2019-09-10 1:26 ` [PATCH v3 4/4] mm, slab_common: Make the loop for initializing KMALLOC_DMA start from 1 Pengfei Li
2019-09-10 10:26 ` Vlastimil Babka
2019-09-11 14:33 ` Pengfei Li
2019-09-12 9:32 ` Vlastimil Babka
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