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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-05 17:50:23 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-07 12:12:29 -0300 |
| commit | 1980c2ebd7020d82c024b8c4046849b38e78e7da (patch) | |
| tree | 3f2004bffaf6e77b66571e44f8af247ac177d92b /tools/perf/util/evsel.c | |
| parent | 3f2728bdb6a4cad0d18b09d03e2008121c902751 (diff) | |
| download | linux-1980c2ebd7020d82c024b8c4046849b38e78e7da.tar.gz linux-1980c2ebd7020d82c024b8c4046849b38e78e7da.tar.xz linux-1980c2ebd7020d82c024b8c4046849b38e78e7da.zip | |
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 <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9b05atsn0q6m7fqgrug8fk2i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 1 |
1 files changed, 1 insertions, 0 deletions
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) |