From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756688AbaGaGGk (ORCPT ); Thu, 31 Jul 2014 02:06:40 -0400 Received: from mga14.intel.com ([192.55.52.115]:1809 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756412AbaGaGDR (ORCPT ); Thu, 31 Jul 2014 02:03:17 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,770,1400050800"; d="scan'208";a="569800045" From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Paul Mackerras , Stephane Eranian Subject: [PATCH 19/31] perf tools: Extend Python script interface to export data in a database-friendly way Date: Thu, 31 Jul 2014 09:01:02 +0300 Message-Id: <1406786474-9306-20-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1406786474-9306-1-git-send-email-adrian.hunter@intel.com> References: <1406786474-9306-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- .../util/scripting-engines/trace-event-python.c | 281 ++++++++++++++++++++- 1 file changed, 279 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 26e5f14..3062eb8 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 #include #include +#include #include #include "../../perf.h" @@ -32,6 +33,9 @@ #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" @@ -52,6 +56,21 @@ 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) { @@ -474,6 +493,210 @@ 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); + 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, @@ -550,19 +773,25 @@ 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); } } @@ -588,11 +817,53 @@ 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; + + 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; @@ -631,6 +902,8 @@ 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(); @@ -644,8 +917,12 @@ error: */ 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(); -- 1.8.3.2