tracing/filter: Allocate the preds in an array

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Currently we allocate an array of pointers to filter_preds, and then
allocate a separate filter_pred for each item in the array.
This adds slight overhead in the filters as it needs to derefernce
twice to get to the op condition.

Allocating the preds themselves in a single array removes a dereference
as well as helps on the cache footprint.

Cc: Tom Zanussi <tzanussi@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Steven Rostedt 2011-01-27 22:49:48 -05:00 • committed by Steven Rostedt

parent 0fc3ca9a10

commit 74e9e58c35

2 changed files with 10 additions and 23 deletions

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2

kernel/trace/trace.h

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31

kernel/trace/trace_events_filter.c

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