From 1980c2ebd7020d82c024b8c4046849b38e78e7da Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 5 Oct 2011 17:50:23 -0300 Subject: perf hists: Threaded addition and sorting of entries By using a mutex just for inserting and rotating two hist_entry rb trees, so that when sorting we can get the last batch of entries created from the ring buffer, merge it with whatever we have processed so far and show the output while new entries are being added. The 'report' tool continues, for now, to do it without threading, but will use this in the future to allow visualization of results in long perf.data sessions while the entries are being processed. The new 'top' tool will be the first user. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-9b05atsn0q6m7fqgrug8fk2i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/evsel.c') diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index e389815078d3..b46f6e4bff3c 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -39,6 +39,7 @@ void perf_evsel__init(struct perf_evsel *evsel, evsel->idx = idx; evsel->attr = *attr; INIT_LIST_HEAD(&evsel->node); + hists__init(&evsel->hists); } struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx) -- cgit v1.2.1