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author | Tom Zanussi <tzanussi@gmail.com> | 2010-01-27 02:27:57 -0600 |
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committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-02-25 04:07:29 +0100 |
commit | 7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6 (patch) | |
tree | cafeb2a119cfa4aad3252f8d9ad164b276153f3e /tools/perf/scripts | |
parent | 266fe2f217d1dc9f8041e395c0ab4569a5bad91a (diff) | |
download | kernel_goldelico_gta04-7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6.zip kernel_goldelico_gta04-7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6.tar.gz kernel_goldelico_gta04-7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6.tar.bz2 |
perf/scripts: Add Python scripting engine
Add base support for Python scripting to perf trace.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1264580883-15324-6-git-send-email-tzanussi@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'tools/perf/scripts')
3 files changed, 204 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c new file mode 100644 index 0000000..957085d --- /dev/null +++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c @@ -0,0 +1,88 @@ +/* + * Context.c. Python interfaces for perf trace. + * + * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <Python.h> +#include "../../../perf.h" +#include "../../../util/trace-event.h" + +PyMODINIT_FUNC initperf_trace_context(void); + +static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args) +{ + static struct scripting_context *scripting_context; + PyObject *context; + int retval; + + if (!PyArg_ParseTuple(args, "O", &context)) + return NULL; + + scripting_context = PyCObject_AsVoidPtr(context); + retval = common_pc(scripting_context); + + return Py_BuildValue("i", retval); +} + +static PyObject *perf_trace_context_common_flags(PyObject *self, + PyObject *args) +{ + static struct scripting_context *scripting_context; + PyObject *context; + int retval; + + if (!PyArg_ParseTuple(args, "O", &context)) + return NULL; + + scripting_context = PyCObject_AsVoidPtr(context); + retval = common_flags(scripting_context); + + return Py_BuildValue("i", retval); +} + +static PyObject *perf_trace_context_common_lock_depth(PyObject *self, + PyObject *args) +{ + static struct scripting_context *scripting_context; + PyObject *context; + int retval; + + if (!PyArg_ParseTuple(args, "O", &context)) + return NULL; + + scripting_context = PyCObject_AsVoidPtr(context); + retval = common_lock_depth(scripting_context); + + return Py_BuildValue("i", retval); +} + +static PyMethodDef ContextMethods[] = { + { "common_pc", perf_trace_context_common_pc, METH_VARARGS, + "Get the common preempt count event field value."}, + { "common_flags", perf_trace_context_common_flags, METH_VARARGS, + "Get the common flags event field value."}, + { "common_lock_depth", perf_trace_context_common_lock_depth, + METH_VARARGS, "Get the common lock depth event field value."}, + { NULL, NULL, 0, NULL} +}; + +PyMODINIT_FUNC initperf_trace_context(void) +{ + (void) Py_InitModule("perf_trace_context", ContextMethods); +} diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py new file mode 100644 index 0000000..1dc464e --- /dev/null +++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py @@ -0,0 +1,91 @@ +# Core.py - Python extension for perf trace, core functions +# +# Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com> +# +# This software may be distributed under the terms of the GNU General +# Public License ("GPL") version 2 as published by the Free Software +# Foundation. + +from collections import defaultdict + +def autodict(): + return defaultdict(autodict) + +flag_fields = autodict() +symbolic_fields = autodict() + +def define_flag_field(event_name, field_name, delim): + flag_fields[event_name][field_name]['delim'] = delim + +def define_flag_value(event_name, field_name, value, field_str): + flag_fields[event_name][field_name]['values'][value] = field_str + +def define_symbolic_field(event_name, field_name): + # nothing to do, really + pass + +def define_symbolic_value(event_name, field_name, value, field_str): + symbolic_fields[event_name][field_name]['values'][value] = field_str + +def flag_str(event_name, field_name, value): + string = "" + + if flag_fields[event_name][field_name]: + print_delim = 0 + keys = flag_fields[event_name][field_name]['values'].keys() + keys.sort() + for idx in keys: + if not value and not idx: + string += flag_fields[event_name][field_name]['values'][idx] + break + if idx and (value & idx) == idx: + if print_delim and flag_fields[event_name][field_name]['delim']: + string += " " + flag_fields[event_name][field_name]['delim'] + " " + string += flag_fields[event_name][field_name]['values'][idx] + print_delim = 1 + value &= ~idx + + return string + +def symbol_str(event_name, field_name, value): + string = "" + + if symbolic_fields[event_name][field_name]: + keys = symbolic_fields[event_name][field_name]['values'].keys() + keys.sort() + for idx in keys: + if not value and not idx: + string = symbolic_fields[event_name][field_name]['values'][idx] + break + if (value == idx): + string = symbolic_fields[event_name][field_name]['values'][idx] + break + + return string + +trace_flags = { 0x00: "NONE", \ + 0x01: "IRQS_OFF", \ + 0x02: "IRQS_NOSUPPORT", \ + 0x04: "NEED_RESCHED", \ + 0x08: "HARDIRQ", \ + 0x10: "SOFTIRQ" } + +def trace_flag_str(value): + string = "" + print_delim = 0 + + keys = trace_flags.keys() + + for idx in keys: + if not value and not idx: + string += "NONE" + break + + if idx and (value & idx) == idx: + if print_delim: + string += " | "; + string += trace_flags[idx] + print_delim = 1 + value &= ~idx + + return string diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py new file mode 100644 index 0000000..83e9143 --- /dev/null +++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py @@ -0,0 +1,25 @@ +# Util.py - Python extension for perf trace, miscellaneous utility code +# +# Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com> +# +# This software may be distributed under the terms of the GNU General +# Public License ("GPL") version 2 as published by the Free Software +# Foundation. + +NSECS_PER_SEC = 1000000000 + +def avg(total, n): + return total / n + +def nsecs(secs, nsecs): + return secs * NSECS_PER_SEC + nsecs + +def nsecs_secs(nsecs): + return nsecs / NSECS_PER_SEC + +def nsecs_nsecs(nsecs): + return nsecs % NSECS_PER_SEC + +def nsecs_str(nsecs): + str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)), + return str |