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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-01-30 11:59:43 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-31 12:40:52 -0200
commit7e2ed097538c57ff5268e9a6bced7c0b885809c8 (patch)
tree44f9998cc6054d5bef07d6c2979afb0e81ddf13c /tools/perf/python
parentf8a9530939ed87b9a1b1a038b90e355098b679a2 (diff)
downloadlinux-7e2ed097538c57ff5268e9a6bced7c0b885809c8.tar.gz
perf evlist: Store pointer to the cpu and thread maps
So that we don't have to pass it around to the several methods that needs it, simplifying usage. There is one case where we don't have the thread/cpu map in advance, which is in the parsing routines used by top, stat, record, that we have to wait till all options are parsed to know if a cpu or thread list was passed to then create those maps. For that case consolidate the cpu and thread map creation via perf_evlist__create_maps() out of the code in top and record, while also providing a perf_evlist__set_maps() for cases where multiple evlists share maps or for when maps that represent CPU sockets, for instance, get crafted out of topology information or subsets of threads in a particular application are to be monitored, providing more granularity in specifying which cpus and threads to monitor. 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>
Diffstat (limited to 'tools/perf/python')
-rwxr-xr-xtools/perf/python/twatch.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py
index 5e9f3b7b7ee8..df638c438a9f 100755
--- a/tools/perf/python/twatch.py
+++ b/tools/perf/python/twatch.py
@@ -23,9 +23,9 @@ def main():
sample_id_all = 1,
sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_TID)
evsel.open(cpus = cpus, threads = threads);
- evlist = perf.evlist()
+ evlist = perf.evlist(cpus, threads)
evlist.add(evsel)
- evlist.mmap(cpus = cpus, threads = threads)
+ evlist.mmap()
while True:
evlist.poll(timeout = -1)
for cpu in cpus: