Commit f5456a6b authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar
Browse files

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: default avatarPeter 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: default avatarIngo Molnar <mingo@elte.hu>
parent 60db5e09

Documentation/perf_counter/builtin-top.c

+5 −1
Original line number Diff line number Diff line
@@ -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) {