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020bb75a6d
When the sample queue is flushed we free the sample reference objects. Though we need to malloc new objects when we process further. Stop the malloc/free orgy and cache the already allocated object for resuage. Only allocate when the cache is empty. Performance gain: ~ 10% Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20101130163820.338488630@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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