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perf kvm: Do guest-only counting by default

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Make use of exclude_guest and exlude_host in perf-kvm to do only
guest-only counting by default.

Cc: Gleb Natapov <gleb@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
[ committer note: Moved perf_{guest,host} & event_attr_init to util.c ]
[                 so as not to drag more stuff to the python binding]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Joerg Roedel 2012-01-04 17:54:20 +01:00 • committed by Arnaldo Carvalho de Melo
parent df25f989a4
commit 1aed267173
5 changed files with 26 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

6
tools/perf/builtin-kvm.c
View file

@ -22,9 +22,6 @@
static const char *file_name; static const char *file_name;
static char name_buffer[256]; static char name_buffer[256];
bool perf_host = 1;
bool perf_guest;
static const char * const kvm_usage[] = { static const char * const kvm_usage[] = {
"perf kvm [<options>] {top|record|report|diff|buildid-list}", "perf kvm [<options>] {top|record|report|diff|buildid-list}",
NULL NULL
@ -107,7 +104,8 @@ static int __cmd_buildid_list(int argc, const char **argv)
int cmd_kvm(int argc, const char **argv, const char *prefix __used) int cmd_kvm(int argc, const char **argv, const char *prefix __used)
{ {
perf_host = perf_guest = 0; perf_host = 0;
perf_guest = 1;
argc = parse_options(argc, argv, kvm_options, kvm_usage, argc = parse_options(argc, argv, kvm_options, kvm_usage,
PARSE_OPT_STOP_AT_NON_OPTION); PARSE_OPT_STOP_AT_NON_OPTION);

5
tools/perf/util/evlist.c
View file

@ -111,8 +111,11 @@ int perf_evlist__add_default(struct perf_evlist *evlist)
.type = PERF_TYPE_HARDWARE, .type = PERF_TYPE_HARDWARE,
.config = PERF_COUNT_HW_CPU_CYCLES, .config = PERF_COUNT_HW_CPU_CYCLES,
}; };
struct perf_evsel *evsel = perf_evsel__new(&attr, 0); struct perf_evsel *evsel;
event_attr_init(&attr);
evsel = perf_evsel__new(&attr, 0);
if (evsel == NULL) if (evsel == NULL)
goto error; goto error;

1
tools/perf/util/parse-events.c
View file

@ -838,6 +838,7 @@ int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
for (;;) { for (;;) {
ostr = str; ostr = str;
memset(&attr, 0, sizeof(attr)); memset(&attr, 0, sizeof(attr));
event_attr_init(&attr);
ret = parse_event_symbols(evlist, &str, &attr); ret = parse_event_symbols(evlist, &str, &attr);
if (ret == EVT_FAILED) if (ret == EVT_FAILED)
return -1; return -1;

15
tools/perf/util/util.c
View file

@ -1,6 +1,21 @@
#include "../perf.h"
#include "util.h" #include "util.h"
#include <sys/mman.h> #include <sys/mman.h>
/*
* XXX We need to find a better place for these things...
*/
bool perf_host = true;
bool perf_guest = true;
void event_attr_init(struct perf_event_attr *attr)
{
if (!perf_host)
attr->exclude_host = 1;
if (!perf_guest)
attr->exclude_guest = 1;
}
int mkdir_p(char *path, mode_t mode) int mkdir_p(char *path, mode_t mode)
{ {
struct stat st; struct stat st;

4
tools/perf/util/util.h
View file

@ -242,6 +242,10 @@ int strtailcmp(const char *s1, const char *s2);
unsigned long convert_unit(unsigned long value, char *unit); unsigned long convert_unit(unsigned long value, char *unit);
int readn(int fd, void *buf, size_t size); int readn(int fd, void *buf, size_t size);
struct perf_event_attr;
void event_attr_init(struct perf_event_attr *attr);
#define _STR(x) #x #define _STR(x) #x
#define STR(x) _STR(x) #define STR(x) _STR(x)