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[SCM] GNU Mach branch, master, updated. 24832de763ad58be6afdcff6c761b54c
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Richard Braun |
Subject: |
[SCM] GNU Mach branch, master, updated. 24832de763ad58be6afdcff6c761b54ccee42667 |
Date: |
Sat, 20 Apr 2013 23:44:32 +0000 |
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- Log -----------------------------------------------------------------
commit 24832de763ad58be6afdcff6c761b54ccee42667
Author: Richard Braun <address@hidden>
Date: Sun Apr 21 01:30:27 2013 +0200
Rework slab lists handling
Don't enforce strong ordering of partial slabs. Separating partial slabs
from free slabs is already effective against fragmentation, and sorting
would sometimes cause pathological scalability issues. In addition, store
new slabs (whether free or partial) in LIFO order for better cache usage.
* kern/slab.c (kmem_cache_grow): Insert new slab at the head of the slabs
list.
(kmem_cache_alloc_from_slab): Likewise. In addition, don't sort partial
slabs.
(kmem_cache_free_to_slab): Likewise.
* kern/slab.h: Remove comment about partial slabs sorting.
-----------------------------------------------------------------------
Summary of changes:
kern/slab.c | 82 ++++++-----------------------------------------------------
kern/slab.h | 7 -----
2 files changed, 8 insertions(+), 81 deletions(-)
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