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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-15 15:19:29 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-15 15:26:57 +0200 |
| commit | f5456a6b056b709282e87a68b4c1b81ac2e866fa (patch) | |
| tree | 07637183188a59e31fd4f0769ec0f31e2737a8cf /Documentation/perf_counter/builtin-top.c | |
| parent | 60db5e09c13109b13830cc9dcae688003fd39e79 (diff) | |
| download | lwn-f5456a6b056b709282e87a68b4c1b81ac2e866fa.tar.gz lwn-f5456a6b056b709282e87a68b4c1b81ac2e866fa.zip | |
perf top: update to use the new freq interface
Provide perf top -F as alternative to -c.
[ Impact: new 'perf top' feature ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20090515132018.707922166@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/perf_counter/builtin-top.c')
| -rw-r--r-- | Documentation/perf_counter/builtin-top.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c index b1549dd27720..814b2e4925e3 100644 --- a/Documentation/perf_counter/builtin-top.c +++ b/Documentation/perf_counter/builtin-top.c @@ -98,6 +98,7 @@ static unsigned int page_size; static unsigned int mmap_pages = 16; static int use_mmap = 0; static int use_munmap = 0; +static int freq = 0; static char *vmlinux; @@ -846,9 +847,10 @@ static void process_options(int argc, char **argv) {"stat", no_argument, NULL, 'S'}, {"vmlinux", required_argument, NULL, 'x'}, {"zero", no_argument, NULL, 'z'}, + {"freq", required_argument, NULL, 'F'}, {NULL, 0, NULL, 0 } }; - int c = getopt_long(argc, argv, "+:ac:C:d:De:f:g:hln:m:p:r:s:Sx:zMU", + int c = getopt_long(argc, argv, "+:ac:C:d:De:f:g:hln:m:p:r:s:Sx:zMUF:", long_options, &option_index); if (c == -1) break; @@ -889,6 +891,7 @@ static void process_options(int argc, char **argv) case 'm': mmap_pages = atoi(optarg); break; case 'M': use_mmap = 1; break; case 'U': use_munmap = 1; break; + case 'F': freq = 1; default_interval = atoi(optarg); break; default: error = 1; break; } } @@ -1075,6 +1078,7 @@ int cmd_top(int argc, char **argv, const char *prefix) hw_event.nmi = nmi; hw_event.mmap = use_mmap; hw_event.munmap = use_munmap; + hw_event.freq = freq; fd[i][counter] = sys_perf_counter_open(&hw_event, tid, cpu, group_fd, 0); if (fd[i][counter] < 0) { |