- 根目录:
- tools
- perf
- util
- python.c
#include <Python.h>
#include <structmember.h>
#include <inttypes.h>
#include <poll.h>
#include "evlist.h"
#include "evsel.h"
#include "event.h"
#include "cpumap.h"
#include "thread_map.h"
/* Define PyVarObject_HEAD_INIT for python 2.5 */
#ifndef PyVarObject_HEAD_INIT
# define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
#endif
struct throttle_event {
struct perf_event_header header;
u64 time;
u64 id;
u64 stream_id;
};
PyMODINIT_FUNC initperf(void);
#define member_def(type, member, ptype, help) \
{ #member, ptype, \
offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
0, help }
#define sample_member_def(name, member, ptype, help) \
{ #name, ptype, \
offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
0, help }
struct pyrf_event {
PyObject_HEAD
struct perf_sample sample;
union perf_event event;
};
#define sample_members \
sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"), \
sample_member_def(sample_pid, pid, T_INT, "event pid"), \
sample_member_def(sample_tid, tid, T_INT, "event tid"), \
sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"), \
sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"), \
sample_member_def(sample_id, id, T_ULONGLONG, "event id"), \
sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \
sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
static PyMemberDef pyrf_mmap_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(mmap_event, pid, T_UINT, "event pid"),
member_def(mmap_event, tid, T_UINT, "event tid"),
member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
member_def(mmap_event, len, T_ULONGLONG, "map length"),
member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),
member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
{ .name = NULL, },
};
static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
"length: %#" PRIx64 ", offset: %#" PRIx64 ", "
"filename: %s }",
pevent->event.mmap.pid, pevent->event.mmap.tid,
pevent->event.mmap.start, pevent->event.mmap.len,
pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
ret = PyErr_NoMemory();
} else {
ret = PyString_FromString(s);
free(s);
}
return ret;
}
static PyTypeObject pyrf_mmap_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.mmap_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_mmap_event__doc,
.tp_members = pyrf_mmap_event__members,
.tp_repr = (reprfunc)pyrf_mmap_event__repr,
};
static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
static PyMemberDef pyrf_task_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(fork_event, pid, T_UINT, "event pid"),
member_def(fork_event, ppid, T_UINT, "event ppid"),
member_def(fork_event, tid, T_UINT, "event tid"),
member_def(fork_event, ptid, T_UINT, "event ptid"),
member_def(fork_event, time, T_ULONGLONG, "timestamp"),
{ .name = NULL, },
};
static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
{
return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
"ptid: %u, time: %" PRIu64 "}",
pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
pevent->event.fork.pid,
pevent->event.fork.ppid,
pevent->event.fork.tid,
pevent->event.fork.ptid,
pevent->event.fork.time);
}
static PyTypeObject pyrf_task_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.task_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_task_event__doc,
.tp_members = pyrf_task_event__members,
.tp_repr = (reprfunc)pyrf_task_event__repr,
};
static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
static PyMemberDef pyrf_comm_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(comm_event, pid, T_UINT, "event pid"),
member_def(comm_event, tid, T_UINT, "event tid"),
member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
{ .name = NULL, },
};
static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
{
return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
pevent->event.comm.pid,
pevent->event.comm.tid,
pevent->event.comm.comm);
}
static PyTypeObject pyrf_comm_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.comm_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_comm_event__doc,
.tp_members = pyrf_comm_event__members,
.tp_repr = (reprfunc)pyrf_comm_event__repr,
};
static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
static PyMemberDef pyrf_throttle_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
member_def(throttle_event, id, T_ULONGLONG, "event id"),
member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
{ .name = NULL, },
};
static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
{
struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
", stream_id: %" PRIu64 " }",
pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
te->time, te->id, te->stream_id);
}
static PyTypeObject pyrf_throttle_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.throttle_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_throttle_event__doc,
.tp_members = pyrf_throttle_event__members,
.tp_repr = (reprfunc)pyrf_throttle_event__repr,
};
static int pyrf_event__setup_types(void)
{
int err;
pyrf_mmap_event__type.tp_new =
pyrf_task_event__type.tp_new =
pyrf_comm_event__type.tp_new =
pyrf_throttle_event__type.tp_new = PyType_GenericNew;
err = PyType_Ready(&pyrf_mmap_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_task_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_comm_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_throttle_event__type);
if (err < 0)
goto out;
out:
return err;
}
static PyTypeObject *pyrf_event__type[] = {
[PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
[PERF_RECORD_LOST] = &pyrf_mmap_event__type,
[PERF_RECORD_COMM] = &pyrf_comm_event__type,
[PERF_RECORD_EXIT] = &pyrf_task_event__type,
[PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_FORK] = &pyrf_task_event__type,
[PERF_RECORD_READ] = &pyrf_mmap_event__type,
[PERF_RECORD_SAMPLE] = &pyrf_mmap_event__type,
};
static PyObject *pyrf_event__new(union perf_event *event)
{
struct pyrf_event *pevent;
PyTypeObject *ptype;
if (event->header.type < PERF_RECORD_MMAP ||
event->header.type > PERF_RECORD_SAMPLE)
return NULL;
ptype = pyrf_event__type[event->header.type];
pevent = PyObject_New(struct pyrf_event, ptype);
if (pevent != NULL)
memcpy(&pevent->event, event, event->header.size);
return (PyObject *)pevent;
}
struct pyrf_cpu_map {
PyObject_HEAD
struct cpu_map *cpus;
};
static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "cpustr", NULL, NULL, };
char *cpustr = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
kwlist, &cpustr))
return -1;
pcpus->cpus = cpu_map__new(cpustr);
if (pcpus->cpus == NULL)
return -1;
return 0;
}
static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
{
cpu_map__delete(pcpus->cpus);
pcpus->ob_type->tp_free((PyObject*)pcpus);
}
static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
{
struct pyrf_cpu_map *pcpus = (void *)obj;
return pcpus->cpus->nr;
}
static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
{
struct pyrf_cpu_map *pcpus = (void *)obj;
if (i >= pcpus->cpus->nr)
return NULL;
return Py_BuildValue("i", pcpus->cpus->map[i]);
}
static PySequenceMethods pyrf_cpu_map__sequence_methods = {
.sq_length = pyrf_cpu_map__length,
.sq_item = pyrf_cpu_map__item,
};
static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
static PyTypeObject pyrf_cpu_map__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.cpu_map",
.tp_basicsize = sizeof(struct pyrf_cpu_map),
.tp_dealloc = (destructor)pyrf_cpu_map__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_cpu_map__doc,
.tp_as_sequence = &pyrf_cpu_map__sequence_methods,
.tp_init = (initproc)pyrf_cpu_map__init,
};
static int pyrf_cpu_map__setup_types(void)
{
pyrf_cpu_map__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_cpu_map__type);
}
struct pyrf_thread_map {
PyObject_HEAD
struct thread_map *threads;
};
static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "pid", "tid", NULL, NULL, };
int pid = -1, tid = -1;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii",
kwlist, &pid, &tid))
return -1;
pthreads->threads = thread_map__new(pid, tid);
if (pthreads->threads == NULL)
return -1;
return 0;
}
static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
{
thread_map__delete(pthreads->threads);
pthreads->ob_type->tp_free((PyObject*)pthreads);
}
static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
{
struct pyrf_thread_map *pthreads = (void *)obj;
return pthreads->threads->nr;
}
static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
{
struct pyrf_thread_map *pthreads = (void *)obj;
if (i >= pthreads->threads->nr)
return NULL;
return Py_BuildValue("i", pthreads->threads->map[i]);
}
static PySequenceMethods pyrf_thread_map__sequence_methods = {
.sq_length = pyrf_thread_map__length,
.sq_item = pyrf_thread_map__item,
};
static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
static PyTypeObject pyrf_thread_map__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.thread_map",
.tp_basicsize = sizeof(struct pyrf_thread_map),
.tp_dealloc = (destructor)pyrf_thread_map__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_thread_map__doc,
.tp_as_sequence = &pyrf_thread_map__sequence_methods,
.tp_init = (initproc)pyrf_thread_map__init,
};
static int pyrf_thread_map__setup_types(void)
{
pyrf_thread_map__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_thread_map__type);
}
struct pyrf_evsel {
PyObject_HEAD
struct perf_evsel evsel;
};
static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
PyObject *args, PyObject *kwargs)
{
struct perf_event_attr attr = {
.type = PERF_TYPE_HARDWARE,
.config = PERF_COUNT_HW_CPU_CYCLES,
.sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
};
static char *kwlist[] = {
"type",
"config",
"sample_freq",
"sample_period",
"sample_type",
"read_format",
"disabled",
"inherit",
"pinned",
"exclusive",
"exclude_user",
"exclude_kernel",
"exclude_hv",
"exclude_idle",
"mmap",
"comm",
"freq",
"inherit_stat",
"enable_on_exec",
"task",
"watermark",
"precise_ip",
"mmap_data",
"sample_id_all",
"wakeup_events",
"bp_type",
"bp_addr",
"bp_len", NULL, NULL, };
u64 sample_period = 0;
u32 disabled = 0,
inherit = 0,
pinned = 0,
exclusive = 0,
exclude_user = 0,
exclude_kernel = 0,
exclude_hv = 0,
exclude_idle = 0,
mmap = 0,
comm = 0,
freq = 1,
inherit_stat = 0,
enable_on_exec = 0,
task = 0,
watermark = 0,
precise_ip = 0,
mmap_data = 0,
sample_id_all = 1;
int idx = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"|iKiKKiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
&attr.type, &attr.config, &attr.sample_freq,
&sample_period, &attr.sample_type,
&attr.read_format, &disabled, &inherit,
&pinned, &exclusive, &exclude_user,
&exclude_kernel, &exclude_hv, &exclude_idle,
&mmap, &comm, &freq, &inherit_stat,
&enable_on_exec, &task, &watermark,
&precise_ip, &mmap_data, &sample_id_all,
&attr.wakeup_events, &attr.bp_type,
&attr.bp_addr, &attr.bp_len, &idx))
return -1;
/* union... */
if (sample_period != 0) {
if (attr.sample_freq != 0)
return -1; /* FIXME: throw right exception */
attr.sample_period = sample_period;
}
/* Bitfields */
attr.disabled = disabled;
attr.inherit = inherit;
attr.pinned = pinned;
attr.exclusive = exclusive;
attr.exclude_user = exclude_user;
attr.exclude_kernel = exclude_kernel;
attr.exclude_hv = exclude_hv;
attr.exclude_idle = exclude_idle;
attr.mmap = mmap;
attr.comm = comm;
attr.freq = freq;
attr.inherit_stat = inherit_stat;
attr.enable_on_exec = enable_on_exec;
attr.task = task;
attr.watermark = watermark;
attr.precise_ip = precise_ip;
attr.mmap_data = mmap_data;
attr.sample_id_all = sample_id_all;
perf_evsel__init(&pevsel->evsel, &attr, idx);
return 0;
}
static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
{
perf_evsel__exit(&pevsel->evsel);
pevsel->ob_type->tp_free((PyObject*)pevsel);
}
static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
PyObject *args, PyObject *kwargs)
{
struct perf_evsel *evsel = &pevsel->evsel;
struct cpu_map *cpus = NULL;
struct thread_map *threads = NULL;
PyObject *pcpus = NULL, *pthreads = NULL;
int group = 0, inherit = 0;
static char *kwlist[] = {"cpus", "threads", "group", "inherit", NULL, NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
&pcpus, &pthreads, &group, &inherit))
return NULL;
if (pthreads != NULL)
threads = ((struct pyrf_thread_map *)pthreads)->threads;
if (pcpus != NULL)
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
evsel->attr.inherit = inherit;
if (perf_evsel__open(evsel, cpus, threads, group) < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pyrf_evsel__methods[] = {
{
.ml_name = "open",
.ml_meth = (PyCFunction)pyrf_evsel__open,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("open the event selector file descriptor table.")
},
{ .ml_name = NULL, }
};
static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
static PyTypeObject pyrf_evsel__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.evsel",
.tp_basicsize = sizeof(struct pyrf_evsel),
.tp_dealloc = (destructor)pyrf_evsel__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_evsel__doc,
.tp_methods = pyrf_evsel__methods,
.tp_init = (initproc)pyrf_evsel__init,
};
static int pyrf_evsel__setup_types(void)
{
pyrf_evsel__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_evsel__type);
}
struct pyrf_evlist {
PyObject_HEAD
struct perf_evlist evlist;
};
static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs __used)
{
PyObject *pcpus = NULL, *pthreads = NULL;
struct cpu_map *cpus;
struct thread_map *threads;
if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
return -1;
threads = ((struct pyrf_thread_map *)pthreads)->threads;
cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
perf_evlist__init(&pevlist->evlist, cpus, threads);
return 0;
}
static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
{
perf_evlist__exit(&pevlist->evlist);
pevlist->ob_type->tp_free((PyObject*)pevlist);
}
static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
static char *kwlist[] = {"pages", "overwrite",
NULL, NULL};
int pages = 128, overwrite = false;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
&pages, &overwrite))
return NULL;
if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
static char *kwlist[] = {"timeout", NULL, NULL};
int timeout = -1, n;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
return NULL;
n = poll(evlist->pollfd, evlist->nr_fds, timeout);
if (n < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
return Py_BuildValue("i", n);
}
static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
PyObject *args __used, PyObject *kwargs __used)
{
struct perf_evlist *evlist = &pevlist->evlist;
PyObject *list = PyList_New(0);
int i;
for (i = 0; i < evlist->nr_fds; ++i) {
PyObject *file;
FILE *fp = fdopen(evlist->pollfd[i].fd, "r");
if (fp == NULL)
goto free_list;
file = PyFile_FromFile(fp, "perf", "r", NULL);
if (file == NULL)
goto free_list;
if (PyList_Append(list, file) != 0) {
Py_DECREF(file);
goto free_list;
}
Py_DECREF(file);
}
return list;
free_list:
return PyErr_NoMemory();
}
static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs __used)
{
struct perf_evlist *evlist = &pevlist->evlist;
PyObject *pevsel;
struct perf_evsel *evsel;
if (!PyArg_ParseTuple(args, "O", &pevsel))
return NULL;
Py_INCREF(pevsel);
evsel = &((struct pyrf_evsel *)pevsel)->evsel;
evsel->idx = evlist->nr_entries;
perf_evlist__add(evlist, evsel);
return Py_BuildValue("i", evlist->nr_entries);
}
static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
union perf_event *event;
int sample_id_all = 1, cpu;
static char *kwlist[] = {"sample_id_all", NULL, NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
&cpu, &sample_id_all))
return NULL;
event = perf_evlist__mmap_read(evlist, cpu);
if (event != NULL) {
struct perf_evsel *first;
PyObject *pyevent = pyrf_event__new(event);
struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
if (pyevent == NULL)
return PyErr_NoMemory();
first = list_entry(evlist->entries.next, struct perf_evsel, node);
perf_event__parse_sample(event, first->attr.sample_type, sample_id_all,
&pevent->sample);
return pyevent;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pyrf_evlist__methods[] = {
{
.ml_name = "mmap",
.ml_meth = (PyCFunction)pyrf_evlist__mmap,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("mmap the file descriptor table.")
},
{
.ml_name = "poll",
.ml_meth = (PyCFunction)pyrf_evlist__poll,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("poll the file descriptor table.")
},
{
.ml_name = "get_pollfd",
.ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("get the poll file descriptor table.")
},
{
.ml_name = "add",
.ml_meth = (PyCFunction)pyrf_evlist__add,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("adds an event selector to the list.")
},
{
.ml_name = "read_on_cpu",
.ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
.ml_flags = METH_VARARGS | METH_KEYWORDS,
.ml_doc = PyDoc_STR("reads an event.")
},
{ .ml_name = NULL, }
};
static Py_ssize_t pyrf_evlist__length(PyObject *obj)
{
struct pyrf_evlist *pevlist = (void *)obj;
return pevlist->evlist.nr_entries;
}
static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
{
struct pyrf_evlist *pevlist = (void *)obj;
struct perf_evsel *pos;
if (i >= pevlist->evlist.nr_entries)
return NULL;
list_for_each_entry(pos, &pevlist->evlist.entries, node)
if (i-- == 0)
break;
return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
}
static PySequenceMethods pyrf_evlist__sequence_methods = {
.sq_length = pyrf_evlist__length,
.sq_item = pyrf_evlist__item,
};
static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
static PyTypeObject pyrf_evlist__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.evlist",
.tp_basicsize = sizeof(struct pyrf_evlist),
.tp_dealloc = (destructor)pyrf_evlist__delete,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_as_sequence = &pyrf_evlist__sequence_methods,
.tp_doc = pyrf_evlist__doc,
.tp_methods = pyrf_evlist__methods,
.tp_init = (initproc)pyrf_evlist__init,
};
static int pyrf_evlist__setup_types(void)
{
pyrf_evlist__type.tp_new = PyType_GenericNew;
return PyType_Ready(&pyrf_evlist__type);
}
static struct {
const char *name;
int value;
} perf__constants[] = {
{ "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
{ "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
{ "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
{ "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
{ "TYPE_RAW", PERF_TYPE_RAW },
{ "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
{ "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
{ "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
{ "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
{ "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
{ "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
{ "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
{ "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
{ "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
{ "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
{ "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
{ "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
{ "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
{ "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
{ "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
{ "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
{ "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
{ "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
{ "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
{ "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
{ "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
{ "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
{ "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
{ "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
{ "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
{ "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
{ "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
{ "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
{ "SAMPLE_IP", PERF_SAMPLE_IP },
{ "SAMPLE_TID", PERF_SAMPLE_TID },
{ "SAMPLE_TIME", PERF_SAMPLE_TIME },
{ "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
{ "SAMPLE_READ", PERF_SAMPLE_READ },
{ "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
{ "SAMPLE_ID", PERF_SAMPLE_ID },
{ "SAMPLE_CPU", PERF_SAMPLE_CPU },
{ "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
{ "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
{ "SAMPLE_RAW", PERF_SAMPLE_RAW },
{ "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
{ "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
{ "FORMAT_ID", PERF_FORMAT_ID },
{ "FORMAT_GROUP", PERF_FORMAT_GROUP },
{ "RECORD_MMAP", PERF_RECORD_MMAP },
{ "RECORD_LOST", PERF_RECORD_LOST },
{ "RECORD_COMM", PERF_RECORD_COMM },
{ "RECORD_EXIT", PERF_RECORD_EXIT },
{ "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
{ "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
{ "RECORD_FORK", PERF_RECORD_FORK },
{ "RECORD_READ", PERF_RECORD_READ },
{ "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
{ .name = NULL, },
};
static PyMethodDef perf__methods[] = {
{ .ml_name = NULL, }
};
PyMODINIT_FUNC initperf(void)
{
PyObject *obj;
int i;
PyObject *dict, *module = Py_InitModule("perf", perf__methods);
if (module == NULL ||
pyrf_event__setup_types() < 0 ||
pyrf_evlist__setup_types() < 0 ||
pyrf_evsel__setup_types() < 0 ||
pyrf_thread_map__setup_types() < 0 ||
pyrf_cpu_map__setup_types() < 0)
return;
Py_INCREF(&pyrf_evlist__type);
PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
Py_INCREF(&pyrf_evsel__type);
PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
Py_INCREF(&pyrf_thread_map__type);
PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
Py_INCREF(&pyrf_cpu_map__type);
PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
dict = PyModule_GetDict(module);
if (dict == NULL)
goto error;
for (i = 0; perf__constants[i].name != NULL; i++) {
obj = PyInt_FromLong(perf__constants[i].value);
if (obj == NULL)
goto error;
PyDict_SetItemString(dict, perf__constants[i].name, obj);
Py_DECREF(obj);
}
error:
if (PyErr_Occurred())
PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
}