Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1634465

[PATCH V2 0/3] try to save some memory for kmem_cache in some cases

Show all headers | View raw

kmem_cache is a frequently used data in kernel. During the code reading, I
found maybe we could save some space in some cases.

1. On 64bit arch, type int will occupy a word if it doesn't sit well.
2. cpu_slab->partial is just used when CONFIG_SLUB_CPU_PARTIAL is set
3. cpu_partial is just used when CONFIG_SLUB_CPU_PARTIAL is set, while just
save some space on 32bit arch.

v2:
   define some macro to make the code more elegant

Wei Yang (3):
  mm/slub: pack red_left_pad with another int to save a word
  mm/slub: wrap cpu_slab->partial in CONFIG_SLUB_CPU_PARTIAL
  mm/slub: wrap kmem_cache->cpu_partial in config
    CONFIG_SLUB_CPU_PARTIAL

 include/linux/slub_def.h | 34 ++++++++++++++++++-
 mm/slub.c                | 85 ++++++++++++++++++++++++++----------------------
 2 files changed, 80 insertions(+), 39 deletions(-)

-- 
2.11.0

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH V2 0/3] try to save some memory for kmem_cache in some cases Wei Yang <richard.weiyang@gmail.com> - 2017-05-02 16:50 +0200
  [PATCH V2 1/3] mm/slub: pack red_left_pad with another int to save a word Wei Yang <richard.weiyang@gmail.com> - 2017-05-02 16:50 +0200

csiph-web