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perf top: update to use the new freq interface

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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>
This commit is contained in:
Peter Zijlstra 2009-05-15 15:19:29 +02:00 committed by Ingo Molnar
parent 60db5e09c1
commit f5456a6b05
1 changed files with 5 additions and 1 deletions
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6
Documentation/perf_counter/builtin-top.c
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@ -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) {