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-rw-r--r--tools/perf/builtin-timechart.c267
1 files changed, 132 insertions, 135 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index e8a510d935e5..cb58b6605fcc 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -29,14 +29,14 @@
#include "util/header.h"
#include "util/parse-options.h"
#include "util/parse-events.h"
+#include "util/event.h"
+#include "util/data_map.h"
#include "util/svghelper.h"
static char const *input_name = "perf.data";
static char const *output_name = "output.svg";
-static unsigned long page_size;
-static unsigned long mmap_window = 32;
static u64 sample_type;
static unsigned int numcpus;
@@ -49,8 +49,6 @@ static u64 first_time, last_time;
static int power_only;
-static struct perf_header *header;
-
struct per_pid;
struct per_pidcomm;
@@ -153,6 +151,17 @@ static struct wake_event *wake_events;
struct sample_wrapper *all_samples;
+
+struct process_filter;
+struct process_filter {
+ char *name;
+ int pid;
+ struct process_filter *next;
+};
+
+static struct process_filter *process_filter;
+
+
static struct per_pid *find_create_pid(int pid)
{
struct per_pid *cursor = all_data;
@@ -763,11 +772,11 @@ static void draw_wakeups(void)
c = p->all;
while (c) {
if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
- if (p->pid == we->waker) {
+ if (p->pid == we->waker && !from) {
from = c->Y;
task_from = strdup(c->comm);
}
- if (p->pid == we->wakee) {
+ if (p->pid == we->wakee && !to) {
to = c->Y;
task_to = strdup(c->comm);
}
@@ -882,12 +891,89 @@ static void draw_process_bars(void)
}
}
+static void add_process_filter(const char *string)
+{
+ struct process_filter *filt;
+ int pid;
+
+ pid = strtoull(string, NULL, 10);
+ filt = malloc(sizeof(struct process_filter));
+ if (!filt)
+ return;
+
+ filt->name = strdup(string);
+ filt->pid = pid;
+ filt->next = process_filter;
+
+ process_filter = filt;
+}
+
+static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
+{
+ struct process_filter *filt;
+ if (!process_filter)
+ return 1;
+
+ filt = process_filter;
+ while (filt) {
+ if (filt->pid && p->pid == filt->pid)
+ return 1;
+ if (strcmp(filt->name, c->comm) == 0)
+ return 1;
+ filt = filt->next;
+ }
+ return 0;
+}
+
+static int determine_display_tasks_filtered(void)
+{
+ struct per_pid *p;
+ struct per_pidcomm *c;
+ int count = 0;
+
+ p = all_data;
+ while (p) {
+ p->display = 0;
+ if (p->start_time == 1)
+ p->start_time = first_time;
+
+ /* no exit marker, task kept running to the end */
+ if (p->end_time == 0)
+ p->end_time = last_time;
+
+ c = p->all;
+
+ while (c) {
+ c->display = 0;
+
+ if (c->start_time == 1)
+ c->start_time = first_time;
+
+ if (passes_filter(p, c)) {
+ c->display = 1;
+ p->display = 1;
+ count++;
+ }
+
+ if (c->end_time == 0)
+ c->end_time = last_time;
+
+ c = c->next;
+ }
+ p = p->next;
+ }
+ return count;
+}
+
static int determine_display_tasks(u64 threshold)
{
struct per_pid *p;
struct per_pidcomm *c;
int count = 0;
+ if (process_filter)
+ return determine_display_tasks_filtered();
+
p = all_data;
while (p) {
p->display = 0;
@@ -957,36 +1043,6 @@ static void write_svg_file(const char *filename)
svg_close();
}
-static int
-process_event(event_t *event)
-{
-
- switch (event->header.type) {
-
- case PERF_RECORD_COMM:
- return process_comm_event(event);
- case PERF_RECORD_FORK:
- return process_fork_event(event);
- case PERF_RECORD_EXIT:
- return process_exit_event(event);
- case PERF_RECORD_SAMPLE:
- return queue_sample_event(event);
-
- /*
- * We dont process them right now but they are fine:
- */
- case PERF_RECORD_MMAP:
- case PERF_RECORD_THROTTLE:
- case PERF_RECORD_UNTHROTTLE:
- return 0;
-
- default:
- return -1;
- }
-
- return 0;
-}
-
static void process_samples(void)
{
struct sample_wrapper *cursor;
@@ -1002,107 +1058,38 @@ static void process_samples(void)
}
}
-
-static int __cmd_timechart(void)
+static int sample_type_check(u64 type)
{
- int ret, rc = EXIT_FAILURE;
- unsigned long offset = 0;
- unsigned long head, shift;
- struct stat statbuf;
- event_t *event;
- uint32_t size;
- char *buf;
- int input;
-
- input = open(input_name, O_RDONLY);
- if (input < 0) {
- fprintf(stderr, " failed to open file: %s", input_name);
- if (!strcmp(input_name, "perf.data"))
- fprintf(stderr, " (try 'perf record' first)");
- fprintf(stderr, "\n");
- exit(-1);
- }
-
- ret = fstat(input, &statbuf);
- if (ret < 0) {
- perror("failed to stat file");
- exit(-1);
- }
-
- if (!statbuf.st_size) {
- fprintf(stderr, "zero-sized file, nothing to do!\n");
- exit(0);
- }
-
- header = perf_header__read(input);
- head = header->data_offset;
-
- sample_type = perf_header__sample_type(header);
+ sample_type = type;
- shift = page_size * (head / page_size);
- offset += shift;
- head -= shift;
-
-remap:
- buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
- MAP_SHARED, input, offset);
- if (buf == MAP_FAILED) {
- perror("failed to mmap file");
- exit(-1);
- }
-
-more:
- event = (event_t *)(buf + head);
-
- size = event->header.size;
- if (!size)
- size = 8;
-
- if (head + event->header.size >= page_size * mmap_window) {
- int ret2;
-
- shift = page_size * (head / page_size);
-
- ret2 = munmap(buf, page_size * mmap_window);
- assert(ret2 == 0);
-
- offset += shift;
- head -= shift;
- goto remap;
- }
-
- size = event->header.size;
-
- if (!size || process_event(event) < 0) {
-
- printf("%p [%p]: skipping unknown header type: %d\n",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event->header.type);
-
- /*
- * assume we lost track of the stream, check alignment, and
- * increment a single u64 in the hope to catch on again 'soon'.
- */
-
- if (unlikely(head & 7))
- head &= ~7ULL;
-
- size = 8;
+ if (!(sample_type & PERF_SAMPLE_RAW)) {
+ fprintf(stderr, "No trace samples found in the file.\n"
+ "Have you used 'perf timechart record' to record it?\n");
+ return -1;
}
- head += size;
+ return 0;
+}
- if (offset + head >= header->data_offset + header->data_size)
- goto done;
+static struct perf_file_handler file_handler = {
+ .process_comm_event = process_comm_event,
+ .process_fork_event = process_fork_event,
+ .process_exit_event = process_exit_event,
+ .process_sample_event = queue_sample_event,
+ .sample_type_check = sample_type_check,
+};
- if (offset + head < (unsigned long)statbuf.st_size)
- goto more;
+static int __cmd_timechart(void)
+{
+ struct perf_header *header;
+ int ret;
-done:
- rc = EXIT_SUCCESS;
- close(input);
+ register_perf_file_handler(&file_handler);
+ ret = mmap_dispatch_perf_file(&header, input_name, 0, 0,
+ &event__cwdlen, &event__cwd);
+ if (ret)
+ return EXIT_FAILURE;
process_samples();
@@ -1112,9 +1099,10 @@ done:
write_svg_file(output_name);
- printf("Written %2.1f seconds of trace to %s.\n", (last_time - first_time) / 1000000000.0, output_name);
+ pr_info("Written %2.1f seconds of trace to %s.\n",
+ (last_time - first_time) / 1000000000.0, output_name);
- return rc;
+ return EXIT_SUCCESS;
}
static const char * const timechart_usage[] = {
@@ -1153,6 +1141,14 @@ static int __cmd_record(int argc, const char **argv)
return cmd_record(i, rec_argv, NULL);
}
+static int
+parse_process(const struct option *opt __used, const char *arg, int __used unset)
+{
+ if (arg)
+ add_process_filter(arg);
+ return 0;
+}
+
static const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
@@ -1160,17 +1156,18 @@ static const struct option options[] = {
"output file name"),
OPT_INTEGER('w', "width", &svg_page_width,
"page width"),
- OPT_BOOLEAN('p', "power-only", &power_only,
+ OPT_BOOLEAN('P', "power-only", &power_only,
"output power data only"),
+ OPT_CALLBACK('p', "process", NULL, "process",
+ "process selector. Pass a pid or process name.",
+ parse_process),
OPT_END()
};
int cmd_timechart(int argc, const char **argv, const char *prefix __used)
{
- symbol__init();
-
- page_size = getpagesize();
+ symbol__init(0);
argc = parse_options(argc, argv, options, timechart_usage,
PARSE_OPT_STOP_AT_NON_OPTION);