Arnaldo Carvalho de Melo b9fb930477 perf hist: Only allocate callchain_node if processing callchains ... The struct callchain_node size is 120 bytes, that are never used when there are no callchains or '-g none' is specified, so conditionally allocate it, reducing sizeof(struct hist_entry) from 210 bytes to only 96, greatly speeding the non-callchain processing. LKML-Reference: <new-submission> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2010-04-02 16:28:28 -03:00
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perf	perf hist: Only allocate callchain_node if processing callchains	2010-04-02 16:28:28 -03:00