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| author | Andrew Morton <akpm@osdl.org> | 2006-06-25 05:47:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:01:07 -0700 |
| commit | b61367732fc273977cc3fb85c272ce1a7bb1f533 (patch) | |
| tree | 92aa6fc7f58b65f322f32612741c64347bc57152 /init | |
| parent | 232acbcf5304c29f5bb03b0dddeaefd0f98ef45e (diff) | |
| download | op-kernel-dev-b61367732fc273977cc3fb85c272ce1a7bb1f533.zip op-kernel-dev-b61367732fc273977cc3fb85c272ce1a7bb1f533.tar.gz | |
[PATCH] schedule_on_each_cpu(): reduce kmalloc() size
schedule_on_each_cpu() presently does a large kmalloc - 96 kbytes on 1024 CPU
64-bit.
Rework it so that we do one 8192-byte allocation and then a pile of tiny ones,
via alloc_percpu(). This has a much higher chance of success (100% in the
current VM).
This also has the effect of reducing the memory requirements from NR_CPUS*n to
num_possible_cpus()*n.
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions
