#include "util/header.h"
#include "util/parse-options.h"
#include "util/parse-events.h"
+#include "util/event.h"
+#include "util/session.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;
static u64 min_freq; /* Lowest CPU frequency seen */
static u64 max_freq; /* Highest CPU frequency seen */
static int power_only;
-static struct perf_header *header;
-
struct per_pid;
struct per_pidcomm;
struct process_filter;
struct process_filter {
- char *name;
- int pid;
- struct process_filter *next;
+ char *name;
+ int pid;
+ struct process_filter *next;
};
static struct process_filter *process_filter;
static u64 cpus_pstate_start_times[MAX_CPUS];
static u64 cpus_pstate_state[MAX_CPUS];
-static int
-process_comm_event(event_t *event)
+static int process_comm_event(event_t *event, struct perf_session *session __used)
{
- pid_set_comm(event->comm.pid, event->comm.comm);
+ pid_set_comm(event->comm.tid, event->comm.comm);
return 0;
}
-static int
-process_fork_event(event_t *event)
+
+static int process_fork_event(event_t *event, struct perf_session *session __used)
{
pid_fork(event->fork.pid, event->fork.ppid, event->fork.time);
return 0;
}
-static int
-process_exit_event(event_t *event)
+static int process_exit_event(event_t *event, struct perf_session *session __used)
{
pid_exit(event->fork.pid, event->fork.time);
return 0;
}
struct trace_entry {
- u32 size;
unsigned short type;
unsigned char flags;
unsigned char preempt_count;
int pid;
- int tgid;
+ int lock_depth;
};
struct power_entry {
}
-static int
-process_sample_event(event_t *event)
+static int process_sample_event(event_t *event, struct perf_session *session)
{
- int cursor = 0;
- u64 addr = 0;
- u64 stamp = 0;
- u32 cpu = 0;
- u32 pid = 0;
+ struct sample_data data;
struct trace_entry *te;
- if (sample_type & PERF_SAMPLE_IP)
- cursor++;
-
- if (sample_type & PERF_SAMPLE_TID) {
- pid = event->sample.array[cursor]>>32;
- cursor++;
- }
- if (sample_type & PERF_SAMPLE_TIME) {
- stamp = event->sample.array[cursor++];
+ memset(&data, 0, sizeof(data));
- if (!first_time || first_time > stamp)
- first_time = stamp;
- if (last_time < stamp)
- last_time = stamp;
+ event__parse_sample(event, session->sample_type, &data);
+ if (session->sample_type & PERF_SAMPLE_TIME) {
+ if (!first_time || first_time > data.time)
+ first_time = data.time;
+ if (last_time < data.time)
+ last_time = data.time;
}
- if (sample_type & PERF_SAMPLE_ADDR)
- addr = event->sample.array[cursor++];
- if (sample_type & PERF_SAMPLE_ID)
- cursor++;
- if (sample_type & PERF_SAMPLE_STREAM_ID)
- cursor++;
- if (sample_type & PERF_SAMPLE_CPU)
- cpu = event->sample.array[cursor++] & 0xFFFFFFFF;
- if (sample_type & PERF_SAMPLE_PERIOD)
- cursor++;
- te = (void *)&event->sample.array[cursor];
-
- if (sample_type & PERF_SAMPLE_RAW && te->size > 0) {
+ te = (void *)data.raw_data;
+ if (session->sample_type & PERF_SAMPLE_RAW && data.raw_size > 0) {
char *event_str;
struct power_entry *pe;
return 0;
if (strcmp(event_str, "power:power_start") == 0)
- c_state_start(cpu, stamp, pe->value);
+ c_state_start(data.cpu, data.time, pe->value);
if (strcmp(event_str, "power:power_end") == 0)
- c_state_end(cpu, stamp);
+ c_state_end(data.cpu, data.time);
if (strcmp(event_str, "power:power_frequency") == 0)
- p_state_change(cpu, stamp, pe->value);
+ p_state_change(data.cpu, data.time, pe->value);
if (strcmp(event_str, "sched:sched_wakeup") == 0)
- sched_wakeup(cpu, stamp, pid, te);
+ sched_wakeup(data.cpu, data.time, data.pid, te);
if (strcmp(event_str, "sched:sched_switch") == 0)
- sched_switch(cpu, stamp, te);
+ sched_switch(data.cpu, data.time, te);
}
return 0;
}
}
}
-static u64 sample_time(event_t *event)
+static u64 sample_time(event_t *event, const struct perf_session *session)
{
int cursor;
cursor = 0;
- if (sample_type & PERF_SAMPLE_IP)
+ if (session->sample_type & PERF_SAMPLE_IP)
cursor++;
- if (sample_type & PERF_SAMPLE_TID)
+ if (session->sample_type & PERF_SAMPLE_TID)
cursor++;
- if (sample_type & PERF_SAMPLE_TIME)
+ if (session->sample_type & PERF_SAMPLE_TIME)
return event->sample.array[cursor];
return 0;
}
* We first queue all events, sorted backwards by insertion.
* The order will get flipped later.
*/
-static int
-queue_sample_event(event_t *event)
+static int queue_sample_event(event_t *event, struct perf_session *session)
{
struct sample_wrapper *copy, *prev;
int size;
memset(copy, 0, size);
copy->next = NULL;
- copy->timestamp = sample_time(event);
+ copy->timestamp = sample_time(event, session);
memcpy(©->data, event, event->sample.header.size);
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)
+static void process_samples(struct perf_session *session)
{
struct sample_wrapper *cursor;
event_t *event;
while (cursor) {
event = (void *)&cursor->data;
cursor = cursor->next;
- process_sample_event(event);
+ process_sample_event(event, session);
}
}
+static struct perf_event_ops event_ops = {
+ .comm = process_comm_event,
+ .fork = process_fork_event,
+ .exit = process_exit_event,
+ .sample = queue_sample_event,
+};
static int __cmd_timechart(void)
{
- 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);
-
- 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);
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
+ int ret = -EINVAL;
- ret2 = munmap(buf, page_size * mmap_window);
- assert(ret2 == 0);
+ if (session == NULL)
+ return -ENOMEM;
- offset += shift;
- head -= shift;
- goto remap;
- }
-
- size = event->header.size;
-
- if (!size || process_event(event) < 0) {
- pr_warning("%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;
- }
-
- head += size;
-
- if (offset + head >= header->data_offset + header->data_size)
- goto done;
+ if (!perf_session__has_traces(session, "timechart record"))
+ goto out_delete;
- if (offset + head < (unsigned long)statbuf.st_size)
- goto more;
+ ret = perf_session__process_events(session, &event_ops);
+ if (ret)
+ goto out_delete;
-done:
- rc = EXIT_SUCCESS;
- close(input);
-
-
- process_samples();
+ process_samples(session);
end_sample_processing();
pr_info("Written %2.1f seconds of trace to %s.\n",
(last_time - first_time) / 1000000000.0, output_name);
-
- return rc;
+out_delete:
+ perf_session__delete(session);
+ return ret;
}
static const char * const timechart_usage[] = {
int cmd_timechart(int argc, const char **argv, const char *prefix __used)
{
- symbol__init();
-
- page_size = getpagesize();
-
argc = parse_options(argc, argv, options, timechart_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
+ symbol__init();
+
if (argc && !strncmp(argv[0], "rec", 3))
return __cmd_record(argc, argv);
else if (argc)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff