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90e129ff60
Currently we store the data into single data strea/file. The cpu if data is stored within the event sample. The lttng puts the CPU number that belongs to the event into the packet context instead into the event. This patch makes sure that the trace produce by perf does look the same way. We now use one stream per-CPU. Having it all in one stream increased the total size of the resulting file. The test went from 416KiB (with perf_cpu event member) to 24MiB due to the required (and pointless) flush. With the per-cpu streams the total size went up to 588KiB. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jeremie Galarneau <jgalar@efficios.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1429372220-6406-3-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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