/
wsgi_metrics.c
1425 lines (1100 loc) · 41.8 KB
/
wsgi_metrics.c
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/* ------------------------------------------------------------------------- */
/*
* Copyright 2007-2020 GRAHAM DUMPLETON
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* ------------------------------------------------------------------------- */
#include "wsgi_metrics.h"
#include "wsgi_apache.h"
#include "wsgi_daemon.h"
#include "wsgi_server.h"
#include "wsgi_memory.h"
#include "wsgi_logger.h"
#include "wsgi_thread.h"
/* ------------------------------------------------------------------------- */
/*
* Thread utilisation. On start and end of requests,
* and when utilisation is requested, we acrue an
* ongoing utilisation time value so can monitor how
* busy we are handling requests.
*/
apr_uint64_t wsgi_total_requests = 0;
int wsgi_active_requests = 0;
static double wsgi_thread_utilization = 0.0;
static apr_time_t wsgi_utilization_last = 0;
/* Request tracking and timing. */
apr_thread_mutex_t* wsgi_monitor_lock = NULL;
static double wsgi_utilization_time(int adjustment,
apr_uint64_t* request_count)
{
apr_time_t now;
double utilization = wsgi_thread_utilization;
apr_thread_mutex_lock(wsgi_monitor_lock);
now = apr_time_now();
if (wsgi_utilization_last != 0.0) {
utilization = (now - wsgi_utilization_last) / 1000000.0;
if (utilization < 0)
utilization = 0;
utilization = wsgi_active_requests * utilization;
wsgi_thread_utilization += utilization;
utilization = wsgi_thread_utilization;
}
wsgi_utilization_last = now;
wsgi_active_requests += adjustment;
if (adjustment < 0)
wsgi_total_requests += -adjustment;
if (request_count)
*request_count = wsgi_total_requests;
apr_thread_mutex_unlock(wsgi_monitor_lock);
return utilization;
}
static int wsgi_request_metrics_enabled = 0;
static apr_uint64_t wsgi_sample_requests = 0;
static double wsgi_server_time_total = 0;
static int wsgi_server_time_buckets[16];
static double wsgi_queue_time_total = 0;
static int wsgi_queue_time_buckets[16];
static double wsgi_daemon_time_total = 0;
static int wsgi_daemon_time_buckets[16];
static double wsgi_application_time_total = 0;
static int wsgi_application_time_buckets[16];
static int* wsgi_request_threads_buckets = NULL;
void wsgi_record_time_in_buckets(int* buckets, double duration) {
int index = 0;
double threshold = 0.005;
while (index < 14) {
if (duration <= threshold)
{
buckets[index] += 1;
return;
}
threshold *= 2;
index += 1;
}
buckets[index] += 1;
}
void wsgi_record_request_times(apr_time_t request_start,
apr_time_t queue_start, apr_time_t daemon_start,
apr_time_t application_start, apr_time_t application_finish) {
double server_time = 0.0;
double queue_time = 0.0;
double daemon_time = 0.0;
double application_time = 0.0;
if (wsgi_request_metrics_enabled == 0)
return;
if (queue_start) {
server_time = apr_time_sec((double)(queue_start-request_start));
queue_time = apr_time_sec((double)(daemon_start-queue_start));
daemon_time = apr_time_sec((double)(application_start-daemon_start));
}
else {
server_time = apr_time_sec((double)(application_start-request_start));
daemon_time = 0;
queue_time = 0;
}
application_time = (apr_time_sec((double)(application_finish-
application_start)));
apr_thread_mutex_lock(wsgi_monitor_lock);
wsgi_sample_requests += 1;
wsgi_server_time_total += server_time;
wsgi_queue_time_total += queue_time;
wsgi_daemon_time_total += daemon_time;
wsgi_application_time_total += application_time;
wsgi_record_time_in_buckets(&wsgi_server_time_buckets,
server_time);
#if defined(MOD_WSGI_WITH_DAEMONS)
if (wsgi_daemon_process) {
wsgi_record_time_in_buckets(&wsgi_queue_time_buckets,
queue_time);
wsgi_record_time_in_buckets(&wsgi_daemon_time_buckets,
daemon_time);
}
#endif
wsgi_record_time_in_buckets(&wsgi_application_time_buckets,
application_time);
apr_thread_mutex_unlock(wsgi_monitor_lock);
}
WSGIThreadInfo *wsgi_start_request(request_rec *r)
{
WSGIThreadInfo *thread_info;
PyObject *module = NULL;
thread_info = wsgi_thread_info(1, 1);
thread_info->request_data = PyDict_New();
#if AP_MODULE_MAGIC_AT_LEAST(20100923,2)
#if PY_MAJOR_VERSION >= 3
thread_info->request_id = PyUnicode_DecodeLatin1(r->log_id,
strlen(r->log_id), NULL);
#else
thread_info->request_id = PyString_FromString(r->log_id);
#endif
module = PyImport_ImportModule("mod_wsgi");
if (module) {
PyObject *dict = NULL;
PyObject *requests = NULL;
dict = PyModule_GetDict(module);
requests = PyDict_GetItemString(dict, "active_requests");
if (requests)
PyDict_SetItem(requests, thread_info->request_id,
thread_info->request_data);
Py_DECREF(module);
}
else
PyErr_Clear();
#endif
wsgi_utilization_time(1, NULL);
return thread_info;
}
void wsgi_end_request(void)
{
WSGIThreadInfo *thread_info;
PyObject *module = NULL;
thread_info = wsgi_thread_info(0, 1);
if (thread_info) {
if (wsgi_request_threads_buckets)
wsgi_request_threads_buckets[thread_info->thread_id-1] += 1;
#if AP_MODULE_MAGIC_AT_LEAST(20100923,2)
module = PyImport_ImportModule("mod_wsgi");
if (module) {
PyObject *dict = NULL;
PyObject *requests = NULL;
dict = PyModule_GetDict(module);
requests = PyDict_GetItemString(dict, "active_requests");
PyDict_DelItem(requests, thread_info->request_id);
Py_DECREF(module);
}
else
PyErr_Clear();
#endif
if (thread_info->log_buffer)
Py_CLEAR(thread_info->log_buffer);
if (thread_info->request_id)
Py_CLEAR(thread_info->request_id);
if (thread_info->request_data)
Py_CLEAR(thread_info->request_data);
}
wsgi_utilization_time(-1, NULL);
}
/* ------------------------------------------------------------------------- */
static int wsgi_interns_initialized = 0;
WSGI_STATIC_INTERNED_STRING(server_limit);
WSGI_STATIC_INTERNED_STRING(thread_limit);
WSGI_STATIC_INTERNED_STRING(running_generation);
WSGI_STATIC_INTERNED_STRING(restart_time);
WSGI_STATIC_INTERNED_STRING(current_time);
WSGI_STATIC_INTERNED_STRING(running_time);
WSGI_STATIC_INTERNED_STRING(process_num);
WSGI_STATIC_INTERNED_STRING(pid);
WSGI_STATIC_INTERNED_STRING(generation);
WSGI_STATIC_INTERNED_STRING(quiescing);
WSGI_STATIC_INTERNED_STRING(workers);
WSGI_STATIC_INTERNED_STRING(thread_num);
WSGI_STATIC_INTERNED_STRING(status);
WSGI_STATIC_INTERNED_STRING(access_count);
WSGI_STATIC_INTERNED_STRING(bytes_served);
WSGI_STATIC_INTERNED_STRING(start_time);
WSGI_STATIC_INTERNED_STRING(stop_time);
WSGI_STATIC_INTERNED_STRING(last_used);
WSGI_STATIC_INTERNED_STRING(client);
WSGI_STATIC_INTERNED_STRING(request);
WSGI_STATIC_INTERNED_STRING(vhost);
WSGI_STATIC_INTERNED_STRING(processes);
WSGI_STATIC_INTERNED_STRING(request_count);
WSGI_STATIC_INTERNED_STRING(request_busy_time);
WSGI_STATIC_INTERNED_STRING(memory_max_rss);
WSGI_STATIC_INTERNED_STRING(memory_rss);
WSGI_STATIC_INTERNED_STRING(cpu_user_time);
WSGI_STATIC_INTERNED_STRING(cpu_system_time);
WSGI_STATIC_INTERNED_STRING(request_threads);
WSGI_STATIC_INTERNED_STRING(active_requests);
WSGI_STATIC_INTERNED_STRING(threads);
WSGI_STATIC_INTERNED_STRING(thread_id);
WSGI_STATIC_INTERNED_STRING(sample_period);
WSGI_STATIC_INTERNED_STRING(request_threads_maximum);
WSGI_STATIC_INTERNED_STRING(request_threads_started);
WSGI_STATIC_INTERNED_STRING(request_threads_active);
WSGI_STATIC_INTERNED_STRING(capacity_utilization);
WSGI_STATIC_INTERNED_STRING(request_throughput);
WSGI_STATIC_INTERNED_STRING(server_time);
WSGI_STATIC_INTERNED_STRING(queue_time);
WSGI_STATIC_INTERNED_STRING(daemon_time);
WSGI_STATIC_INTERNED_STRING(application_time);
WSGI_STATIC_INTERNED_STRING(server_time_buckets);
WSGI_STATIC_INTERNED_STRING(queue_time_buckets);
WSGI_STATIC_INTERNED_STRING(daemon_time_buckets);
WSGI_STATIC_INTERNED_STRING(application_time_buckets);
WSGI_STATIC_INTERNED_STRING(request_threads_buckets);
static PyObject *wsgi_status_flags[SERVER_NUM_STATUS];
#define WSGI_CREATE_STATUS_FLAG(name, val) \
wsgi_status_flags[name] = wsgi_PyString_InternFromString(val)
static void wsgi_initialize_interned_strings(void)
{
/* Initialise interned strings the first time. */
if (!wsgi_interns_initialized) {
WSGI_CREATE_INTERNED_STRING_ID(server_limit);
WSGI_CREATE_INTERNED_STRING_ID(thread_limit);
WSGI_CREATE_INTERNED_STRING_ID(running_generation);
WSGI_CREATE_INTERNED_STRING_ID(restart_time);
WSGI_CREATE_INTERNED_STRING_ID(current_time);
WSGI_CREATE_INTERNED_STRING_ID(running_time);
WSGI_CREATE_INTERNED_STRING_ID(process_num);
WSGI_CREATE_INTERNED_STRING_ID(pid);
WSGI_CREATE_INTERNED_STRING_ID(generation);
WSGI_CREATE_INTERNED_STRING_ID(quiescing);
WSGI_CREATE_INTERNED_STRING_ID(workers);
WSGI_CREATE_INTERNED_STRING_ID(thread_num);
WSGI_CREATE_INTERNED_STRING_ID(status);
WSGI_CREATE_INTERNED_STRING_ID(access_count);
WSGI_CREATE_INTERNED_STRING_ID(bytes_served);
WSGI_CREATE_INTERNED_STRING_ID(start_time);
WSGI_CREATE_INTERNED_STRING_ID(stop_time);
WSGI_CREATE_INTERNED_STRING_ID(last_used);
WSGI_CREATE_INTERNED_STRING_ID(client);
WSGI_CREATE_INTERNED_STRING_ID(request);
WSGI_CREATE_INTERNED_STRING_ID(vhost);
WSGI_CREATE_INTERNED_STRING_ID(processes);
WSGI_CREATE_INTERNED_STRING_ID(request_count);
WSGI_CREATE_INTERNED_STRING_ID(request_busy_time);
WSGI_CREATE_INTERNED_STRING_ID(memory_max_rss);
WSGI_CREATE_INTERNED_STRING_ID(memory_rss);
WSGI_CREATE_INTERNED_STRING_ID(cpu_user_time);
WSGI_CREATE_INTERNED_STRING_ID(cpu_system_time);
WSGI_CREATE_INTERNED_STRING_ID(request_threads);
WSGI_CREATE_INTERNED_STRING_ID(active_requests);
WSGI_CREATE_INTERNED_STRING_ID(threads);
WSGI_CREATE_INTERNED_STRING_ID(thread_id);
WSGI_CREATE_INTERNED_STRING_ID(sample_period);
WSGI_CREATE_INTERNED_STRING_ID(request_threads_maximum);
WSGI_CREATE_INTERNED_STRING_ID(request_threads_started);
WSGI_CREATE_INTERNED_STRING_ID(request_threads_active);
WSGI_CREATE_INTERNED_STRING_ID(capacity_utilization);
WSGI_CREATE_INTERNED_STRING_ID(request_throughput);
WSGI_CREATE_INTERNED_STRING_ID(server_time);
WSGI_CREATE_INTERNED_STRING_ID(queue_time);
WSGI_CREATE_INTERNED_STRING_ID(daemon_time);
WSGI_CREATE_INTERNED_STRING_ID(application_time);
WSGI_CREATE_INTERNED_STRING_ID(server_time_buckets);
WSGI_CREATE_INTERNED_STRING_ID(daemon_time_buckets);
WSGI_CREATE_INTERNED_STRING_ID(queue_time_buckets);
WSGI_CREATE_INTERNED_STRING_ID(application_time_buckets);
WSGI_CREATE_INTERNED_STRING_ID(request_threads_buckets);
WSGI_CREATE_STATUS_FLAG(SERVER_DEAD, ".");
WSGI_CREATE_STATUS_FLAG(SERVER_READY, "_");
WSGI_CREATE_STATUS_FLAG(SERVER_STARTING, "S");
WSGI_CREATE_STATUS_FLAG(SERVER_BUSY_READ, "R");
WSGI_CREATE_STATUS_FLAG(SERVER_BUSY_WRITE, "W");
WSGI_CREATE_STATUS_FLAG(SERVER_BUSY_KEEPALIVE, "K");
WSGI_CREATE_STATUS_FLAG(SERVER_BUSY_LOG, "L");
WSGI_CREATE_STATUS_FLAG(SERVER_BUSY_DNS, "D");
WSGI_CREATE_STATUS_FLAG(SERVER_CLOSING, "C");
WSGI_CREATE_STATUS_FLAG(SERVER_GRACEFUL, "G");
WSGI_CREATE_STATUS_FLAG(SERVER_IDLE_KILL, "I");
wsgi_interns_initialized = 1;
}
}
/* ------------------------------------------------------------------------- */
static PyObject *wsgi_request_metrics(void)
{
PyObject *result = NULL;
PyObject *object = NULL;
apr_time_t stop_time;
double stop_request_busy_time = 0.0;
apr_uint64_t stop_request_count = 0.0;
double request_busy_time = 0.0;
double capacity_utilization = 0.0;
static double start_time = 0.0;
static double start_cpu_system_time = 0.0;
static double start_cpu_user_time = 0.0;
static double start_request_busy_time = 0.0;
static apr_uint64_t start_request_count = 0;
double sample_period = 0.0;
apr_uint64_t request_count = 0;
double request_throughput = 0.0;
double stop_cpu_system_time = 0.0;
double stop_cpu_user_time = 0.0;
double cpu_system_time = 0.0;
double cpu_user_time = 0.0;
double total_cpu_time = 0.0;
static int request_threads_maximum = 0;
apr_uint64_t interval_requests = 0;
double server_time_total = 0;
double server_time_avg = 0;
double queue_time_total = 0;
double queue_time_avg = 0;
double daemon_time_total = 0;
double daemon_time_avg = 0;
double application_time_total = 0;
double application_time_avg = 0;
WSGIThreadInfo **thread_info = NULL;
int request_threads_active = 0;
int i;
#ifdef HAVE_TIMES
struct tms tmsbuf;
static float tick = 0.0;
if (!tick) {
#ifdef _SC_CLK_TCK
tick = sysconf(_SC_CLK_TCK);
#else
tick = HZ;
#endif
}
#endif
if (!wsgi_interns_initialized)
wsgi_initialize_interned_strings();
if (!request_threads_maximum) {
int is_threaded = 0;
#if defined(MOD_WSGI_WITH_DAEMONS)
if (wsgi_daemon_process) {
request_threads_maximum = wsgi_daemon_process->group->threads;
}
else {
ap_mpm_query(AP_MPMQ_IS_THREADED, &is_threaded);
if (is_threaded != AP_MPMQ_NOT_SUPPORTED) {
ap_mpm_query(AP_MPMQ_MAX_THREADS, &request_threads_maximum);
}
}
#else
ap_mpm_query(AP_MPMQ_IS_THREADED, &is_threaded);
if (is_threaded != AP_MPMQ_NOT_SUPPORTED) {
ap_mpm_query(AP_MPMQ_MAX_THREADS, &request_threads_maximum);
}
#endif
request_threads_maximum = ((request_threads_maximum <= 0) ? 1 :
request_threads_maximum);
wsgi_request_threads_buckets = (int *)apr_pcalloc(
wsgi_server_config->pool, request_threads_maximum*sizeof(
wsgi_request_threads_buckets[0]));
}
result = PyDict_New();
stop_time = apr_time_now();
stop_request_busy_time = wsgi_utilization_time(0, &stop_request_count);
if (!start_time) {
start_time = stop_time;
start_request_busy_time = stop_request_busy_time;
start_request_count = stop_request_count;
#ifdef HAVE_TIMES
times(&tmsbuf);
start_cpu_user_time = tmsbuf.tms_utime / tick;
start_cpu_system_time = tmsbuf.tms_stime / tick;
#else
start_cpu_user_time = 0.0;
start_cpu_system_time = 0.0;
#endif
apr_thread_mutex_lock(wsgi_monitor_lock);
wsgi_sample_requests = 0;
wsgi_server_time_total = 0.0;
wsgi_queue_time_total = 0.0;
wsgi_daemon_time_total = 0.0;
wsgi_application_time_total = 0.0;
wsgi_request_metrics_enabled = 1;
apr_thread_mutex_unlock(wsgi_monitor_lock);
return result;
}
object = wsgi_PyInt_FromLong(getpid());
PyDict_SetItem(result,
WSGI_INTERNED_STRING(pid), object);
Py_DECREF(object);
object = PyFloat_FromDouble(apr_time_sec((double)start_time));
PyDict_SetItem(result,
WSGI_INTERNED_STRING(start_time), object);
Py_DECREF(object);
object = PyFloat_FromDouble(apr_time_sec((double)stop_time));
PyDict_SetItem(result,
WSGI_INTERNED_STRING(stop_time), object);
Py_DECREF(object);
sample_period = (apr_time_sec((double)stop_time) -
apr_time_sec((double)start_time));
object = PyFloat_FromDouble(sample_period);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(sample_period), object);
Py_DECREF(object);
#ifdef HAVE_TIMES
times(&tmsbuf);
stop_cpu_user_time = tmsbuf.tms_utime / tick;
stop_cpu_system_time = tmsbuf.tms_stime / tick;
cpu_user_time = ((stop_cpu_user_time - start_cpu_user_time) /
sample_period);
cpu_system_time = ((stop_cpu_system_time - start_cpu_system_time) /
sample_period);
total_cpu_time += cpu_user_time;
total_cpu_time += cpu_system_time;
object = PyFloat_FromDouble(cpu_user_time);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(cpu_user_time), object);
Py_DECREF(object);
object = PyFloat_FromDouble(cpu_system_time);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(cpu_system_time), object);
Py_DECREF(object);
#else
object = PyFloat_FromDouble(0.0);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(cpu_user_time), object);
Py_DECREF(object);
object = PyFloat_FromDouble(0.0);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(cpu_system_time), object);
Py_DECREF(object);
#endif
object = wsgi_PyInt_FromLongLong(wsgi_get_peak_memory_RSS());
PyDict_SetItem(result,
WSGI_INTERNED_STRING(memory_max_rss), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLongLong(wsgi_get_current_memory_RSS());
PyDict_SetItem(result,
WSGI_INTERNED_STRING(memory_rss), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(request_threads_maximum);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_threads_maximum), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(wsgi_request_threads);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_threads_started), object);
Py_DECREF(object);
thread_info = (WSGIThreadInfo **)wsgi_thread_details->elts;
request_busy_time = stop_request_busy_time - start_request_busy_time;
capacity_utilization = (request_busy_time / sample_period /
request_threads_maximum);
object = PyFloat_FromDouble(capacity_utilization);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(capacity_utilization), object);
Py_DECREF(object);
request_count = stop_request_count - start_request_count;
object = wsgi_PyInt_FromLongLong(request_count);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_count), object);
Py_DECREF(object);
request_throughput = sample_period ? request_count / sample_period : 0;
object = PyFloat_FromDouble(request_throughput);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_throughput), object);
Py_DECREF(object);
start_time = stop_time;
start_request_busy_time = stop_request_busy_time;
start_request_count = stop_request_count;
start_cpu_user_time = stop_cpu_user_time;
start_cpu_system_time = stop_cpu_system_time;
apr_thread_mutex_lock(wsgi_monitor_lock);
interval_requests = wsgi_sample_requests;
server_time_total = wsgi_server_time_total;
queue_time_total = wsgi_queue_time_total;
daemon_time_total = wsgi_daemon_time_total;
application_time_total = wsgi_application_time_total;
object = PyList_New(16);
for (i=0; i<16; i++) {
PyList_SET_ITEM(object, i, wsgi_PyInt_FromLong(
wsgi_server_time_buckets[i]));
}
PyDict_SetItem(result,
WSGI_INTERNED_STRING(server_time_buckets), object);
Py_DECREF(object);
object = PyList_New(16);
for (i=0; i<16; i++) {
PyList_SET_ITEM(object, i, wsgi_PyInt_FromLong(
wsgi_queue_time_buckets[i]));
}
PyDict_SetItem(result,
WSGI_INTERNED_STRING(queue_time_buckets), object);
Py_DECREF(object);
object = PyList_New(16);
for (i=0; i<16; i++) {
PyList_SET_ITEM(object, i, wsgi_PyInt_FromLong(
wsgi_daemon_time_buckets[i]));
}
PyDict_SetItem(result,
WSGI_INTERNED_STRING(daemon_time_buckets), object);
Py_DECREF(object);
object = PyList_New(16);
for (i=0; i<16; i++) {
PyList_SET_ITEM(object, i, wsgi_PyInt_FromLong(
wsgi_application_time_buckets[i]));
}
PyDict_SetItem(result,
WSGI_INTERNED_STRING(application_time_buckets), object);
Py_DECREF(object);
object = PyList_New(request_threads_maximum);
for (i=0; i<request_threads_maximum; i++) {
PyList_SET_ITEM(object, i, wsgi_PyInt_FromLong(
wsgi_request_threads_buckets[i]));
if (wsgi_request_threads_buckets[i])
request_threads_active++;
}
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_threads_buckets), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(request_threads_active);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_threads_active), object);
Py_DECREF(object);
wsgi_sample_requests = 0;
wsgi_server_time_total = 0.0;
wsgi_queue_time_total = 0.0;
wsgi_daemon_time_total = 0.0;
wsgi_application_time_total = 0.0;
memset(&wsgi_server_time_buckets, 0,
sizeof(wsgi_server_time_buckets));
memset(&wsgi_queue_time_buckets, 0,
sizeof(wsgi_queue_time_buckets));
memset(&wsgi_daemon_time_buckets, 0,
sizeof(wsgi_daemon_time_buckets));
memset(&wsgi_application_time_buckets, 0,
sizeof(wsgi_application_time_buckets));
memset(wsgi_request_threads_buckets, 0, request_threads_maximum*
sizeof(wsgi_request_threads_buckets[0]));
apr_thread_mutex_unlock(wsgi_monitor_lock);
server_time_avg = 0;
queue_time_avg = 0;
daemon_time_avg = 0;
application_time_avg = 0;
if (interval_requests) {
server_time_avg = server_time_total / interval_requests;
queue_time_avg = queue_time_total / interval_requests;
daemon_time_avg = daemon_time_total / interval_requests;
application_time_avg = application_time_total / interval_requests;
}
object = PyFloat_FromDouble(server_time_avg);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(server_time), object);
Py_DECREF(object);
#if defined(MOD_WSGI_WITH_DAEMONS)
if (wsgi_daemon_process) {
object = PyFloat_FromDouble(queue_time_avg);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(queue_time), object);
Py_DECREF(object);
object = PyFloat_FromDouble(daemon_time_avg);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(daemon_time), object);
Py_DECREF(object);
}
else {
PyDict_SetItem(result,
WSGI_INTERNED_STRING(queue_time), Py_None);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(daemon_time), Py_None);
}
#else
PyDict_SetItem(result,
WSGI_INTERNED_STRING(queue_time), Py_None);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(daemon_time), Py_None);
#endif
object = PyFloat_FromDouble(application_time_avg);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(application_time), object);
Py_DECREF(object);
return result;
}
PyMethodDef wsgi_request_metrics_method[] = {
{ "request_metrics", (PyCFunction)wsgi_request_metrics,
METH_NOARGS, 0 },
{ NULL },
};
/* ------------------------------------------------------------------------- */
static PyObject *wsgi_process_metrics(void)
{
PyObject *result = NULL;
PyObject *object = NULL;
PyObject *thread_list = NULL;
WSGIThreadInfo **thread_info = NULL;
apr_uint64_t request_count = 0;
int i;
#ifdef HAVE_TIMES
struct tms tmsbuf;
static float tick = 0.0;
#endif
apr_time_t current_time;
apr_interval_time_t running_time;
if (!wsgi_interns_initialized)
wsgi_initialize_interned_strings();
result = PyDict_New();
object = wsgi_PyInt_FromLong(getpid());
PyDict_SetItem(result,
WSGI_INTERNED_STRING(pid), object);
Py_DECREF(object);
object = PyFloat_FromDouble(wsgi_utilization_time(0, &request_count));
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_busy_time), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLongLong(request_count);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_count), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLongLong(wsgi_get_peak_memory_RSS());
PyDict_SetItem(result,
WSGI_INTERNED_STRING(memory_max_rss), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLongLong(wsgi_get_current_memory_RSS());
PyDict_SetItem(result,
WSGI_INTERNED_STRING(memory_rss), object);
Py_DECREF(object);
#ifdef HAVE_TIMES
if (!tick) {
#ifdef _SC_CLK_TCK
tick = sysconf(_SC_CLK_TCK);
#else
tick = HZ;
#endif
}
times(&tmsbuf);
object = PyFloat_FromDouble(tmsbuf.tms_utime / tick);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(cpu_user_time), object);
Py_DECREF(object);
object = PyFloat_FromDouble(tmsbuf.tms_stime / tick);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(cpu_system_time), object);
Py_DECREF(object);
#endif
object = PyFloat_FromDouble(apr_time_sec((double)wsgi_restart_time));
PyDict_SetItem(result,
WSGI_INTERNED_STRING(restart_time), object);
Py_DECREF(object);
current_time = apr_time_now();
object = PyFloat_FromDouble(apr_time_sec((double)current_time));
PyDict_SetItem(result,
WSGI_INTERNED_STRING(current_time), object);
Py_DECREF(object);
running_time = (apr_uint32_t)apr_time_sec((double)
current_time - wsgi_restart_time);
object = wsgi_PyInt_FromLongLong(running_time);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(running_time), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(wsgi_request_threads);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(request_threads), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(wsgi_active_requests);
PyDict_SetItem(result,
WSGI_INTERNED_STRING(active_requests), object);
Py_DECREF(object);
thread_list = PyList_New(0);
PyDict_SetItem(result, WSGI_INTERNED_STRING(threads), thread_list);
thread_info = (WSGIThreadInfo **)wsgi_thread_details->elts;
for (i=0; i<wsgi_thread_details->nelts; i++) {
PyObject *entry = NULL;
if (thread_info[i]->request_thread) {
entry = PyDict_New();
object = wsgi_PyInt_FromLong(thread_info[i]->thread_id);
PyDict_SetItem(entry, WSGI_INTERNED_STRING(thread_id), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLongLong(thread_info[i]->request_count);
PyDict_SetItem(entry, WSGI_INTERNED_STRING(request_count), object);
Py_DECREF(object);
PyList_Append(thread_list, entry);
Py_DECREF(entry);
}
}
Py_DECREF(thread_list);
return result;
}
PyMethodDef wsgi_process_metrics_method[] = {
{ "process_metrics", (PyCFunction)wsgi_process_metrics,
METH_NOARGS, 0 },
{ NULL },
};
/* ------------------------------------------------------------------------- */
static PyObject *wsgi_server_metrics(void)
{
PyObject *scoreboard_dict = NULL;
PyObject *process_list = NULL;
PyObject *object = NULL;
apr_time_t current_time;
apr_interval_time_t running_time;
global_score *gs_record;
worker_score *ws_record;
process_score *ps_record;
int j, i;
if (!wsgi_interns_initialized)
wsgi_initialize_interned_strings();
/* Scoreboard needs to exist and server metrics enabled. */
if (!ap_exists_scoreboard_image()) {
Py_INCREF(Py_None);
return Py_None;
}
if (!wsgi_daemon_pool) {
if (!wsgi_server_config->server_metrics) {
Py_INCREF(Py_None);
return Py_None;
}
}
#if defined(MOD_WSGI_WITH_DAEMONS)
else {
if (!wsgi_daemon_process->group->server_metrics) {
Py_INCREF(Py_None);
return Py_None;
}
}
#endif
gs_record = ap_get_scoreboard_global();
if (!gs_record) {
Py_INCREF(Py_None);
return Py_None;
}
/* Return everything in a dictionary. Start with global. */
scoreboard_dict = PyDict_New();
object = wsgi_PyInt_FromLong(gs_record->server_limit);
PyDict_SetItem(scoreboard_dict,
WSGI_INTERNED_STRING(server_limit), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(gs_record->thread_limit);
PyDict_SetItem(scoreboard_dict,
WSGI_INTERNED_STRING(thread_limit), object);
Py_DECREF(object);
object = wsgi_PyInt_FromLong(gs_record->running_generation);
PyDict_SetItem(scoreboard_dict,
WSGI_INTERNED_STRING(running_generation), object);
Py_DECREF(object);
object = PyFloat_FromDouble(apr_time_sec((
double)gs_record->restart_time));
PyDict_SetItem(scoreboard_dict,
WSGI_INTERNED_STRING(restart_time), object);
Py_DECREF(object);
current_time = apr_time_now();
object = PyFloat_FromDouble(apr_time_sec((double)current_time));
PyDict_SetItem(scoreboard_dict,
WSGI_INTERNED_STRING(current_time), object);
Py_DECREF(object);
running_time = (apr_uint32_t)apr_time_sec((double)
current_time - ap_scoreboard_image->global->restart_time);
object = wsgi_PyInt_FromLongLong(running_time);
PyDict_SetItem(scoreboard_dict,
WSGI_INTERNED_STRING(running_time), object);
Py_DECREF(object);
/* Now add in the processes/workers. */
process_list = PyList_New(0);
for (i = 0; i < gs_record->server_limit; ++i) {
PyObject *process_dict = NULL;
PyObject *worker_list = NULL;
ps_record = ap_get_scoreboard_process(i);