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perf: Remove 64-bit alignment padding from perf_event_context

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Reorder perf_event_context to remove 8 bytes of 64 bit alignment padding
shrinking its size to 192 bytes, allowing it to fit into a smaller slab
and use one fewer cache lines.

Signed-off-by: Richard Kennedy <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Richard Kennedy 2011-06-07 16:33:38 +01:00 • committed by Ingo Molnar
commit 28009ce4a8
1 changed files with 1 additions and 1 deletions
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include/linux/perf_event.h
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@ -894,8 +894,8 @@ struct perf_event_context {
u64 parent_gen;
u64 generation;
int pin_count;
struct rcu_head rcu_head;
int nr_cgroups; /* cgroup events present */
struct rcu_head rcu_head;
};
/*