summaryrefslogtreecommitdiff
path: root/tools
diff options
context:
space:
mode:
authorAdrian Hunter <adrian.hunter@intel.com>2014-10-23 13:45:14 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-10-29 10:32:49 -0200
commitdf919b400ad3f9e6aac392ce421d710207abf9be (patch)
tree0e49286a4bfa90bbe221c787702e4759f3005a90 /tools
parent0db15b1e84a59e6e1da5fe6e74c35fe52fa29d92 (diff)
perf scripting python: Extend interface to export data in a database-friendly way
Use the new db_export facility to export data in a database-friendly way. A Python script selects the db_export mode by setting a global variable 'perf_db_export_mode' to True. The script then optionally implements functions to receive table rows. The functions are: evsel_table machine_table thread_table comm_table dso_table symbol_table sample_table An example script is provided in a subsequent patch. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1414061124-26830-7-git-send-email-adrian.hunter@intel.com [ Reserve space for per symbol db_id space when perf_db_export_mode is on ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/scripting-engines/trace-event-python.c286
1 files changed, 284 insertions, 2 deletions
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 25e5a238f1cb..2fd7ee8f18c7 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -24,6 +24,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <stdbool.h>
#include <errno.h>
#include "../../perf.h"
@@ -33,6 +34,9 @@
#include "../util.h"
#include "../event.h"
#include "../thread.h"
+#include "../comm.h"
+#include "../machine.h"
+#include "../db-export.h"
#include "../trace-event.h"
#include "../machine.h"
@@ -53,6 +57,21 @@ static int zero_flag_atom;
static PyObject *main_module, *main_dict;
+struct tables {
+ struct db_export dbe;
+ PyObject *evsel_handler;
+ PyObject *machine_handler;
+ PyObject *thread_handler;
+ PyObject *comm_handler;
+ PyObject *comm_thread_handler;
+ PyObject *dso_handler;
+ PyObject *symbol_handler;
+ PyObject *sample_handler;
+ bool db_export_mode;
+};
+
+static struct tables tables_global;
+
static void handler_call_die(const char *handler_name) NORETURN;
static void handler_call_die(const char *handler_name)
{
@@ -475,6 +494,211 @@ static void python_process_tracepoint(struct perf_sample *sample,
Py_DECREF(t);
}
+static PyObject *tuple_new(unsigned int sz)
+{
+ PyObject *t;
+
+ t = PyTuple_New(sz);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+ return t;
+}
+
+static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
+{
+#if BITS_PER_LONG == 64
+ return PyTuple_SetItem(t, pos, PyInt_FromLong(val));
+#endif
+#if BITS_PER_LONG == 32
+ return PyTuple_SetItem(t, pos, PyLong_FromLongLong(val));
+#endif
+}
+
+static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val)
+{
+ return PyTuple_SetItem(t, pos, PyInt_FromLong(val));
+}
+
+static int tuple_set_string(PyObject *t, unsigned int pos, const char *s)
+{
+ return PyTuple_SetItem(t, pos, PyString_FromString(s));
+}
+
+static int python_export_evsel(struct db_export *dbe, struct perf_evsel *evsel)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(2);
+
+ tuple_set_u64(t, 0, evsel->db_id);
+ tuple_set_string(t, 1, perf_evsel__name(evsel));
+
+ call_object(tables->evsel_handler, t, "evsel_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_machine(struct db_export *dbe,
+ struct machine *machine)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(3);
+
+ tuple_set_u64(t, 0, machine->db_id);
+ tuple_set_s32(t, 1, machine->pid);
+ tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : "");
+
+ call_object(tables->machine_handler, t, "machine_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_thread(struct db_export *dbe, struct thread *thread,
+ u64 main_thread_db_id, struct machine *machine)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(5);
+
+ tuple_set_u64(t, 0, thread->db_id);
+ tuple_set_u64(t, 1, machine->db_id);
+ tuple_set_u64(t, 2, main_thread_db_id);
+ tuple_set_s32(t, 3, thread->pid_);
+ tuple_set_s32(t, 4, thread->tid);
+
+ call_object(tables->thread_handler, t, "thread_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_comm(struct db_export *dbe, struct comm *comm)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(2);
+
+ tuple_set_u64(t, 0, comm->db_id);
+ tuple_set_string(t, 1, comm__str(comm));
+
+ call_object(tables->comm_handler, t, "comm_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_comm_thread(struct db_export *dbe, u64 db_id,
+ struct comm *comm, struct thread *thread)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(3);
+
+ tuple_set_u64(t, 0, db_id);
+ tuple_set_u64(t, 1, comm->db_id);
+ tuple_set_u64(t, 2, thread->db_id);
+
+ call_object(tables->comm_thread_handler, t, "comm_thread_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_dso(struct db_export *dbe, struct dso *dso,
+ struct machine *machine)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ PyObject *t;
+
+ build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
+
+ t = tuple_new(5);
+
+ tuple_set_u64(t, 0, dso->db_id);
+ tuple_set_u64(t, 1, machine->db_id);
+ tuple_set_string(t, 2, dso->short_name);
+ tuple_set_string(t, 3, dso->long_name);
+ tuple_set_string(t, 4, sbuild_id);
+
+ call_object(tables->dso_handler, t, "dso_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_symbol(struct db_export *dbe, struct symbol *sym,
+ struct dso *dso)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ u64 *sym_db_id = symbol__priv(sym);
+ PyObject *t;
+
+ t = tuple_new(6);
+
+ tuple_set_u64(t, 0, *sym_db_id);
+ tuple_set_u64(t, 1, dso->db_id);
+ tuple_set_u64(t, 2, sym->start);
+ tuple_set_u64(t, 3, sym->end);
+ tuple_set_s32(t, 4, sym->binding);
+ tuple_set_string(t, 5, sym->name);
+
+ call_object(tables->symbol_handler, t, "symbol_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
+static int python_export_sample(struct db_export *dbe,
+ struct export_sample *es)
+{
+ struct tables *tables = container_of(dbe, struct tables, dbe);
+ PyObject *t;
+
+ t = tuple_new(19);
+
+ tuple_set_u64(t, 0, es->db_id);
+ tuple_set_u64(t, 1, es->evsel->db_id);
+ tuple_set_u64(t, 2, es->al->machine->db_id);
+ tuple_set_u64(t, 3, es->thread->db_id);
+ tuple_set_u64(t, 4, es->comm_db_id);
+ tuple_set_u64(t, 5, es->dso_db_id);
+ tuple_set_u64(t, 6, es->sym_db_id);
+ tuple_set_u64(t, 7, es->offset);
+ tuple_set_u64(t, 8, es->sample->ip);
+ tuple_set_u64(t, 9, es->sample->time);
+ tuple_set_s32(t, 10, es->sample->cpu);
+ tuple_set_u64(t, 11, es->addr_dso_db_id);
+ tuple_set_u64(t, 12, es->addr_sym_db_id);
+ tuple_set_u64(t, 13, es->addr_offset);
+ tuple_set_u64(t, 14, es->sample->addr);
+ tuple_set_u64(t, 15, es->sample->period);
+ tuple_set_u64(t, 16, es->sample->weight);
+ tuple_set_u64(t, 17, es->sample->transaction);
+ tuple_set_u64(t, 18, es->sample->data_src);
+
+ call_object(tables->sample_handler, t, "sample_table");
+
+ Py_DECREF(t);
+
+ return 0;
+}
+
static void python_process_general_event(struct perf_sample *sample,
struct perf_evsel *evsel,
struct thread *thread,
@@ -551,19 +775,25 @@ exit:
Py_DECREF(t);
}
-static void python_process_event(union perf_event *event __maybe_unused,
+static void python_process_event(union perf_event *event,
struct perf_sample *sample,
struct perf_evsel *evsel,
struct thread *thread,
struct addr_location *al)
{
+ struct tables *tables = &tables_global;
+
switch (evsel->attr.type) {
case PERF_TYPE_TRACEPOINT:
python_process_tracepoint(sample, evsel, thread, al);
break;
/* Reserve for future process_hw/sw/raw APIs */
default:
- python_process_general_event(sample, evsel, thread, al);
+ if (tables->db_export_mode)
+ db_export__sample(&tables->dbe, event, sample, evsel,
+ thread, al);
+ else
+ python_process_general_event(sample, evsel, thread, al);
}
}
@@ -589,11 +819,57 @@ error:
return -1;
}
+#define SET_TABLE_HANDLER_(name, handler_name, table_name) do { \
+ tables->handler_name = get_handler(#table_name); \
+ if (tables->handler_name) \
+ tables->dbe.export_ ## name = python_export_ ## name; \
+} while (0)
+
+#define SET_TABLE_HANDLER(name) \
+ SET_TABLE_HANDLER_(name, name ## _handler, name ## _table)
+
+static void set_table_handlers(struct tables *tables)
+{
+ const char *perf_db_export_mode = "perf_db_export_mode";
+ PyObject *db_export_mode;
+ int ret;
+
+ memset(tables, 0, sizeof(struct tables));
+ if (db_export__init(&tables->dbe))
+ Py_FatalError("failed to initialize export");
+
+ db_export_mode = PyDict_GetItemString(main_dict, perf_db_export_mode);
+ if (!db_export_mode)
+ return;
+
+ ret = PyObject_IsTrue(db_export_mode);
+ if (ret == -1)
+ handler_call_die(perf_db_export_mode);
+ if (!ret)
+ return;
+
+ tables->db_export_mode = true;
+ /*
+ * Reserve per symbol space for symbol->db_id via symbol__priv()
+ */
+ symbol_conf.priv_size = sizeof(u64);
+
+ SET_TABLE_HANDLER(evsel);
+ SET_TABLE_HANDLER(machine);
+ SET_TABLE_HANDLER(thread);
+ SET_TABLE_HANDLER(comm);
+ SET_TABLE_HANDLER(comm_thread);
+ SET_TABLE_HANDLER(dso);
+ SET_TABLE_HANDLER(symbol);
+ SET_TABLE_HANDLER(sample);
+}
+
/*
* Start trace script
*/
static int python_start_script(const char *script, int argc, const char **argv)
{
+ struct tables *tables = &tables_global;
const char **command_line;
char buf[PATH_MAX];
int i, err = 0;
@@ -632,6 +908,8 @@ static int python_start_script(const char *script, int argc, const char **argv)
free(command_line);
+ set_table_handlers(tables);
+
return err;
error:
Py_Finalize();
@@ -650,8 +928,12 @@ static int python_flush_script(void)
*/
static int python_stop_script(void)
{
+ struct tables *tables = &tables_global;
+
try_call_object("trace_end", NULL);
+ db_export__exit(&tables->dbe);
+
Py_XDECREF(main_dict);
Py_XDECREF(main_module);
Py_Finalize();