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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-20 14:39:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-05-21 11:37:57 +0200 |
| commit | 57adc51dce9102b6641269dd04f5b99aac83b820 (patch) | |
| tree | 1fa00b36c20aaa97b5b7f5486a36b53fcc4abfd0 /tools | |
| parent | 0f139300c9057c16b5833a4636b715b104fe0baa (diff) | |
| download | lwn-57adc51dce9102b6641269dd04f5b99aac83b820.tar.gz lwn-57adc51dce9102b6641269dd04f5b99aac83b820.zip | |
perf-record: Remove -M
Since it is not allowed to create cross-cpu (or
cross-task) buffers, this option is no longer valid.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20100521090710.582740993@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-record.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index e67226981834..94e210f86077 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -61,8 +61,6 @@ static bool call_graph = false; static bool inherit_stat = false; static bool no_samples = false; static bool sample_address = false; -static bool multiplex = false; -static int multiplex_fd = -1; static long samples = 0; static u64 bytes_written = 0; @@ -366,27 +364,19 @@ try_again: */ if (group && group_fd == -1) group_fd = fd[nr_cpu][counter][thread_index]; - if (multiplex && multiplex_fd == -1) - multiplex_fd = fd[nr_cpu][counter][thread_index]; - if (multiplex && fd[nr_cpu][counter][thread_index] != multiplex_fd) { - - ret = ioctl(fd[nr_cpu][counter][thread_index], PERF_EVENT_IOC_SET_OUTPUT, multiplex_fd); - assert(ret != -1); - } else { - event_array[nr_poll].fd = fd[nr_cpu][counter][thread_index]; - event_array[nr_poll].events = POLLIN; - nr_poll++; - - mmap_array[nr_cpu][counter][thread_index].counter = counter; - mmap_array[nr_cpu][counter][thread_index].prev = 0; - mmap_array[nr_cpu][counter][thread_index].mask = mmap_pages*page_size - 1; - mmap_array[nr_cpu][counter][thread_index].base = mmap(NULL, (mmap_pages+1)*page_size, - PROT_READ|PROT_WRITE, MAP_SHARED, fd[nr_cpu][counter][thread_index], 0); - if (mmap_array[nr_cpu][counter][thread_index].base == MAP_FAILED) { - error("failed to mmap with %d (%s)\n", errno, strerror(errno)); - exit(-1); - } + event_array[nr_poll].fd = fd[nr_cpu][counter][thread_index]; + event_array[nr_poll].events = POLLIN; + nr_poll++; + + mmap_array[nr_cpu][counter][thread_index].counter = counter; + mmap_array[nr_cpu][counter][thread_index].prev = 0; + mmap_array[nr_cpu][counter][thread_index].mask = mmap_pages*page_size - 1; + mmap_array[nr_cpu][counter][thread_index].base = mmap(NULL, (mmap_pages+1)*page_size, + PROT_READ|PROT_WRITE, MAP_SHARED, fd[nr_cpu][counter][thread_index], 0); + if (mmap_array[nr_cpu][counter][thread_index].base == MAP_FAILED) { + error("failed to mmap with %d (%s)\n", errno, strerror(errno)); + exit(-1); } if (filter != NULL) { @@ -820,8 +810,6 @@ static const struct option options[] = { "Sample addresses"), OPT_BOOLEAN('n', "no-samples", &no_samples, "don't sample"), - OPT_BOOLEAN('M', "multiplex", &multiplex, - "multiplex counter output in a single channel"), OPT_END() }; |