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perf session: Use evlist/evsel for managing perf.data attributes

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So that we can reuse things like the id to attr lookup routine
(perf_evlist__id2evsel) that uses a hash table instead of the linear
lookup done in the older perf_header_attr routines, etc.

Also to make evsels/evlist more pervasive an API, simplyfing using the
emerging perf lib.

cc: Arun Sharma <arun@sharma-home.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2011-03-10 11:15:54 -03:00
parent 6547250381
commit a91e5431d5
11 changed files with 179 additions and 328 deletions
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5
tools/perf/builtin-top.c
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@@ -883,7 +883,6 @@ try_again:
static int __cmd_top(void)
{
pthread_t thread;
struct perf_evsel *first;
int ret __used;
/*
* FIXME: perf_session__new should allow passing a O_MMAP, so that all this
@@ -900,8 +899,8 @@ static int __cmd_top(void)
perf_event__synthesize_threads(perf_event__process, session);
start_counters(top.evlist);
first = list_entry(top.evlist->entries.next, struct perf_evsel, node);
perf_session__set_sample_type(session, first->attr.sample_type);
session->evlist = top.evlist;
perf_session__update_sample_type(session);
/* Wait for a minimal set of events before starting the snapshot */
poll(top.evlist->pollfd, top.evlist->nr_fds, 100);