perf session: Move the global threads list to perf_session
So that we can process two perf.data files.
We still need to add a O_MMAP mode for perf_session so that we
can do all the mmap stuff in it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260741029-4430-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index a931b13..795f865 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -131,14 +131,14 @@
return 0;
}
-static int process_sample_event(event_t *event, struct perf_session *session __used)
+static int process_sample_event(event_t *event, struct perf_session *session)
{
struct addr_location al;
dump_printf("(IP, %d): %d: %p\n", event->header.misc,
event->ip.pid, (void *)(long)event->ip.ip);
- if (event__preprocess_sample(event, &al, symbol_filter) < 0) {
+ if (event__preprocess_sample(event, session, &al, symbol_filter) < 0) {
fprintf(stderr, "problem processing %d event, skipping it.\n",
event->header.type);
return -1;
@@ -479,7 +479,7 @@
}
if (verbose > 3)
- threads__fprintf(stdout);
+ perf_session__fprintf(session, stdout);
if (verbose > 2)
dsos__fprintf(stdout);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 237155f..de19495 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -311,7 +311,7 @@
}
}
-static int process_sample_event(event_t *event, struct perf_session *session __used)
+static int process_sample_event(event_t *event, struct perf_session *session)
{
struct sample_data data;
struct thread *thread;
@@ -329,7 +329,7 @@
(void *)(long)data.ip,
(long long)data.period);
- thread = threads__findnew(event->ip.pid);
+ thread = perf_session__findnew(session, event->ip.pid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 26b9478..efa8147 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -600,7 +600,7 @@
return 0;
}
-static int process_sample_event(event_t *event, struct perf_session *session __used)
+static int process_sample_event(event_t *event, struct perf_session *session)
{
struct sample_data data;
int cpumode;
@@ -636,7 +636,7 @@
}
}
- thread = threads__findnew(data.pid);
+ thread = perf_session__findnew(session, data.pid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
@@ -679,9 +679,9 @@
return 0;
}
-static int process_comm_event(event_t *event, struct perf_session *session __used)
+static int process_comm_event(event_t *event, struct perf_session *session)
{
- struct thread *thread = threads__findnew(event->comm.pid);
+ struct thread *thread = perf_session__findnew(session, event->comm.pid);
dump_printf(": %s:%d\n", event->comm.comm, event->comm.pid);
@@ -780,7 +780,7 @@
}
if (verbose > 3)
- threads__fprintf(stdout);
+ perf_session__fprintf(session, stdout);
if (verbose > 2)
dsos__fprintf(stdout);
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 1e4e508..8d58d9e 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -730,18 +730,21 @@
struct trace_sched_handler {
void (*switch_event)(struct trace_switch_event *,
+ struct perf_session *,
struct event *,
int cpu,
u64 timestamp,
struct thread *thread);
void (*runtime_event)(struct trace_runtime_event *,
+ struct perf_session *,
struct event *,
int cpu,
u64 timestamp,
struct thread *thread);
void (*wakeup_event)(struct trace_wakeup_event *,
+ struct perf_session *,
struct event *,
int cpu,
u64 timestamp,
@@ -754,6 +757,7 @@
struct thread *thread);
void (*migrate_task_event)(struct trace_migrate_task_event *,
+ struct perf_session *session,
struct event *,
int cpu,
u64 timestamp,
@@ -763,6 +767,7 @@
static void
replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
+ struct perf_session *session __used,
struct event *event,
int cpu __used,
u64 timestamp __used,
@@ -789,6 +794,7 @@
static void
replay_switch_event(struct trace_switch_event *switch_event,
+ struct perf_session *session __used,
struct event *event,
int cpu,
u64 timestamp,
@@ -1022,6 +1028,7 @@
static void
latency_switch_event(struct trace_switch_event *switch_event,
+ struct perf_session *session,
struct event *event __used,
int cpu,
u64 timestamp,
@@ -1045,8 +1052,8 @@
die("hm, delta: %Ld < 0 ?\n", delta);
- sched_out = threads__findnew(switch_event->prev_pid);
- sched_in = threads__findnew(switch_event->next_pid);
+ sched_out = perf_session__findnew(session, switch_event->prev_pid);
+ sched_in = perf_session__findnew(session, switch_event->next_pid);
out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
if (!out_events) {
@@ -1074,12 +1081,13 @@
static void
latency_runtime_event(struct trace_runtime_event *runtime_event,
+ struct perf_session *session,
struct event *event __used,
int cpu,
u64 timestamp,
struct thread *this_thread __used)
{
- struct thread *thread = threads__findnew(runtime_event->pid);
+ struct thread *thread = perf_session__findnew(session, runtime_event->pid);
struct work_atoms *atoms = thread_atoms_search(&atom_root, thread, &cmp_pid);
BUG_ON(cpu >= MAX_CPUS || cpu < 0);
@@ -1096,6 +1104,7 @@
static void
latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
+ struct perf_session *session,
struct event *__event __used,
int cpu __used,
u64 timestamp,
@@ -1109,7 +1118,7 @@
if (!wakeup_event->success)
return;
- wakee = threads__findnew(wakeup_event->pid);
+ wakee = perf_session__findnew(session, wakeup_event->pid);
atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
if (!atoms) {
thread_atoms_insert(wakee);
@@ -1143,6 +1152,7 @@
static void
latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
+ struct perf_session *session,
struct event *__event __used,
int cpu __used,
u64 timestamp,
@@ -1158,7 +1168,7 @@
if (profile_cpu == -1)
return;
- migrant = threads__findnew(migrate_task_event->pid);
+ migrant = perf_session__findnew(session, migrate_task_event->pid);
atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
if (!atoms) {
thread_atoms_insert(migrant);
@@ -1353,7 +1363,7 @@
static struct trace_sched_handler *trace_handler;
static void
-process_sched_wakeup_event(void *data,
+process_sched_wakeup_event(void *data, struct perf_session *session,
struct event *event,
int cpu __used,
u64 timestamp __used,
@@ -1370,7 +1380,8 @@
FILL_FIELD(wakeup_event, cpu, event, data);
if (trace_handler->wakeup_event)
- trace_handler->wakeup_event(&wakeup_event, event, cpu, timestamp, thread);
+ trace_handler->wakeup_event(&wakeup_event, session, event,
+ cpu, timestamp, thread);
}
/*
@@ -1388,6 +1399,7 @@
static void
map_switch_event(struct trace_switch_event *switch_event,
+ struct perf_session *session,
struct event *event __used,
int this_cpu,
u64 timestamp,
@@ -1415,8 +1427,8 @@
die("hm, delta: %Ld < 0 ?\n", delta);
- sched_out = threads__findnew(switch_event->prev_pid);
- sched_in = threads__findnew(switch_event->next_pid);
+ sched_out = perf_session__findnew(session, switch_event->prev_pid);
+ sched_in = perf_session__findnew(session, switch_event->next_pid);
curr_thread[this_cpu] = sched_in;
@@ -1466,7 +1478,7 @@
static void
-process_sched_switch_event(void *data,
+process_sched_switch_event(void *data, struct perf_session *session,
struct event *event,
int this_cpu,
u64 timestamp __used,
@@ -1493,13 +1505,14 @@
nr_context_switch_bugs++;
}
if (trace_handler->switch_event)
- trace_handler->switch_event(&switch_event, event, this_cpu, timestamp, thread);
+ trace_handler->switch_event(&switch_event, session, event,
+ this_cpu, timestamp, thread);
curr_pid[this_cpu] = switch_event.next_pid;
}
static void
-process_sched_runtime_event(void *data,
+process_sched_runtime_event(void *data, struct perf_session *session,
struct event *event,
int cpu __used,
u64 timestamp __used,
@@ -1513,7 +1526,7 @@
FILL_FIELD(runtime_event, vruntime, event, data);
if (trace_handler->runtime_event)
- trace_handler->runtime_event(&runtime_event, event, cpu, timestamp, thread);
+ trace_handler->runtime_event(&runtime_event, session, event, cpu, timestamp, thread);
}
static void
@@ -1533,7 +1546,8 @@
FILL_FIELD(fork_event, child_pid, event, data);
if (trace_handler->fork_event)
- trace_handler->fork_event(&fork_event, event, cpu, timestamp, thread);
+ trace_handler->fork_event(&fork_event, event,
+ cpu, timestamp, thread);
}
static void
@@ -1547,7 +1561,7 @@
}
static void
-process_sched_migrate_task_event(void *data,
+process_sched_migrate_task_event(void *data, struct perf_session *session,
struct event *event,
int cpu __used,
u64 timestamp __used,
@@ -1563,12 +1577,13 @@
FILL_FIELD(migrate_task_event, cpu, event, data);
if (trace_handler->migrate_task_event)
- trace_handler->migrate_task_event(&migrate_task_event, event, cpu, timestamp, thread);
+ trace_handler->migrate_task_event(&migrate_task_event, session,
+ event, cpu, timestamp, thread);
}
static void
-process_raw_event(event_t *raw_event __used, void *data,
- int cpu, u64 timestamp, struct thread *thread)
+process_raw_event(event_t *raw_event __used, struct perf_session *session,
+ void *data, int cpu, u64 timestamp, struct thread *thread)
{
struct event *event;
int type;
@@ -1578,23 +1593,22 @@
event = trace_find_event(type);
if (!strcmp(event->name, "sched_switch"))
- process_sched_switch_event(data, event, cpu, timestamp, thread);
+ process_sched_switch_event(data, session, event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_stat_runtime"))
- process_sched_runtime_event(data, event, cpu, timestamp, thread);
+ process_sched_runtime_event(data, session, event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_wakeup"))
- process_sched_wakeup_event(data, event, cpu, timestamp, thread);
+ process_sched_wakeup_event(data, session, event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_wakeup_new"))
- process_sched_wakeup_event(data, event, cpu, timestamp, thread);
+ process_sched_wakeup_event(data, session, event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_process_fork"))
process_sched_fork_event(data, event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_process_exit"))
process_sched_exit_event(event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_migrate_task"))
- process_sched_migrate_task_event(data, event, cpu, timestamp, thread);
+ process_sched_migrate_task_event(data, session, event, cpu, timestamp, thread);
}
-static int process_sample_event(event_t *event,
- struct perf_session *session __used)
+static int process_sample_event(event_t *event, struct perf_session *session)
{
struct sample_data data;
struct thread *thread;
@@ -1615,7 +1629,7 @@
(void *)(long)data.ip,
(long long)data.period);
- thread = threads__findnew(data.pid);
+ thread = perf_session__findnew(session, data.pid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
@@ -1627,7 +1641,7 @@
if (profile_cpu != -1 && profile_cpu != (int)data.cpu)
return 0;
- process_raw_event(event, data.raw_data, data.cpu, data.time, thread);
+ process_raw_event(event, session, data.raw_data, data.cpu, data.time, thread);
return 0;
}
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index b13f426..0f7a4da 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -20,8 +20,9 @@
#include "perf.h"
-#include "util/symbol.h"
#include "util/color.h"
+#include "util/session.h"
+#include "util/symbol.h"
#include "util/thread.h"
#include "util/util.h"
#include <linux/rbtree.h>
@@ -926,7 +927,8 @@
return 0;
}
-static void event__process_sample(const event_t *self, int counter)
+static void event__process_sample(const event_t *self,
+ struct perf_session *session, int counter)
{
u64 ip = self->ip.ip;
struct sym_entry *syme;
@@ -946,7 +948,7 @@
return;
}
- if (event__preprocess_sample(self, &al, symbol_filter) < 0 ||
+ if (event__preprocess_sample(self, session, &al, symbol_filter) < 0 ||
al.sym == NULL)
return;
@@ -1053,7 +1055,7 @@
}
if (event->header.type == PERF_RECORD_SAMPLE)
- event__process_sample(event, md->counter);
+ event__process_sample(event, self, md->counter);
else
event__process(event, self);
old += size;
@@ -1157,10 +1159,13 @@
int i, counter;
int ret;
/*
- * XXX perf_session__new should allow passing a O_MMAP, so that all this
- * mmap reading, etc is encapsulated in it.
+ * FIXME: perf_session__new should allow passing a O_MMAP, so that all this
+ * mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
*/
- struct perf_session *session = NULL;
+ struct perf_session *session = perf_session__new(NULL, O_WRONLY, false);
+
+ if (session == NULL)
+ return -ENOMEM;
if (target_pid != -1)
event__synthesize_thread(target_pid, event__process, session);
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b7eb3fc..d765323 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -63,7 +63,7 @@
static u64 sample_type;
-static int process_sample_event(event_t *event, struct perf_session *session __used)
+static int process_sample_event(event_t *event, struct perf_session *session)
{
struct sample_data data;
struct thread *thread;
@@ -81,7 +81,7 @@
(void *)(long)data.ip,
(long long)data.period);
- thread = threads__findnew(event->ip.pid);
+ thread = perf_session__findnew(session, event->ip.pid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index ba2eb2c..44dea21 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -125,9 +125,9 @@
return err;
}
-static struct thread *perf_session__register_idle_thread(struct perf_session *self __used)
+static struct thread *perf_session__register_idle_thread(struct perf_session *self)
{
- struct thread *thread = threads__findnew(0);
+ struct thread *thread = perf_session__findnew(self, 0);
if (!thread || thread__set_comm(thread, "swapper")) {
pr_err("problem inserting idle task.\n");
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 40d8d84..2d09c29 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -189,9 +189,9 @@
struct events_stats event__stats;
-int event__process_comm(event_t *self, struct perf_session *session __used)
+int event__process_comm(event_t *self, struct perf_session *session)
{
- struct thread *thread = threads__findnew(self->comm.pid);
+ struct thread *thread = perf_session__findnew(session, self->comm.pid);
dump_printf(": %s:%d\n", self->comm.comm, self->comm.pid);
@@ -212,7 +212,7 @@
int event__process_mmap(event_t *self, struct perf_session *session)
{
- struct thread *thread = threads__findnew(self->mmap.pid);
+ struct thread *thread = perf_session__findnew(session, self->mmap.pid);
struct map *map = map__new(&self->mmap, MAP__FUNCTION,
session->cwd, session->cwdlen);
@@ -231,10 +231,10 @@
return 0;
}
-int event__process_task(event_t *self, struct perf_session *session __used)
+int event__process_task(event_t *self, struct perf_session *session)
{
- struct thread *thread = threads__findnew(self->fork.pid);
- struct thread *parent = threads__findnew(self->fork.ppid);
+ struct thread *thread = perf_session__findnew(session, self->fork.pid);
+ struct thread *parent = perf_session__findnew(session, self->fork.ppid);
dump_printf("(%d:%d):(%d:%d)\n", self->fork.pid, self->fork.tid,
self->fork.ppid, self->fork.ptid);
@@ -300,11 +300,11 @@
}
}
-int event__preprocess_sample(const event_t *self, struct addr_location *al,
- symbol_filter_t filter)
+int event__preprocess_sample(const event_t *self, struct perf_session *session,
+ struct addr_location *al, symbol_filter_t filter)
{
u8 cpumode = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
- struct thread *thread = threads__findnew(self->ip.pid);
+ struct thread *thread = perf_session__findnew(session, self->ip.pid);
if (thread == NULL)
return -1;
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 6b6429b..bb09025 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -177,8 +177,8 @@
int event__process_task(event_t *self, struct perf_session *session);
struct addr_location;
-int event__preprocess_sample(const event_t *self, struct addr_location *al,
- symbol_filter_t filter);
+int event__preprocess_sample(const event_t *self, struct perf_session *session,
+ struct addr_location *al, symbol_filter_t filter);
int event__parse_sample(event_t *event, u64 type, struct sample_data *data);
#endif /* __PERF_RECORD_H */
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 534a877..09836a5 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -51,7 +51,7 @@
struct perf_session *perf_session__new(const char *filename, int mode,
bool force)
{
- size_t len = strlen(filename) + 1;
+ size_t len = filename ? strlen(filename) + 1 : 0;
struct perf_session *self = zalloc(sizeof(*self) + len);
if (self == NULL)
@@ -61,6 +61,8 @@
goto out_delete;
memcpy(self->filename, filename, len);
+ self->threads = RB_ROOT;
+ self->last_match = NULL;
self->mmap_window = 32;
self->cwd = NULL;
self->cwdlen = 0;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 1e0da9c..1dbef7c 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -3,11 +3,16 @@
#include "event.h"
#include "header.h"
+#include <linux/rbtree.h>
+
+struct thread;
struct perf_session {
struct perf_header header;
unsigned long size;
unsigned long mmap_window;
+ struct rb_root threads;
+ struct thread *last_match;
int fd;
int cwdlen;
char *cwd;
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 5c0ab14..634b7f7 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -2,13 +2,11 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include "session.h"
#include "thread.h"
#include "util.h"
#include "debug.h"
-static struct rb_root threads;
-static struct thread *last_match;
-
void map_groups__init(struct map_groups *self)
{
int i;
@@ -122,9 +120,9 @@
map_groups__fprintf(&self->mg, fp);
}
-struct thread *threads__findnew(pid_t pid)
+struct thread *perf_session__findnew(struct perf_session *self, pid_t pid)
{
- struct rb_node **p = &threads.rb_node;
+ struct rb_node **p = &self->threads.rb_node;
struct rb_node *parent = NULL;
struct thread *th;
@@ -133,15 +131,15 @@
* so most of the time we dont have to look up
* the full rbtree:
*/
- if (last_match && last_match->pid == pid)
- return last_match;
+ if (self->last_match && self->last_match->pid == pid)
+ return self->last_match;
while (*p != NULL) {
parent = *p;
th = rb_entry(parent, struct thread, rb_node);
if (th->pid == pid) {
- last_match = th;
+ self->last_match = th;
return th;
}
@@ -154,8 +152,8 @@
th = thread__new(pid);
if (th != NULL) {
rb_link_node(&th->rb_node, parent, p);
- rb_insert_color(&th->rb_node, &threads);
- last_match = th;
+ rb_insert_color(&th->rb_node, &self->threads);
+ self->last_match = th;
}
return th;
@@ -269,12 +267,12 @@
return 0;
}
-size_t threads__fprintf(FILE *fp)
+size_t perf_session__fprintf(struct perf_session *self, FILE *fp)
{
size_t ret = 0;
struct rb_node *nd;
- for (nd = rb_first(&threads); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&self->threads); nd; nd = rb_next(nd)) {
struct thread *pos = rb_entry(nd, struct thread, rb_node);
ret += thread__fprintf(pos, fp);
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 2e35e1f..e93abf2 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -23,11 +23,11 @@
void map_groups__init(struct map_groups *self);
int thread__set_comm(struct thread *self, const char *comm);
int thread__comm_len(struct thread *self);
-struct thread *threads__findnew(pid_t pid);
+struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
void thread__insert_map(struct thread *self, struct map *map);
int thread__fork(struct thread *self, struct thread *parent);
size_t map_groups__fprintf_maps(struct map_groups *self, FILE *fp);
-size_t threads__fprintf(FILE *fp);
+size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
void maps__insert(struct rb_root *maps, struct map *map);
struct map *maps__find(struct rb_root *maps, u64 addr);
