Move time_meas.{c,h} to common/utils/
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Robert Schmidt
@@ -0,0 +1,275 @@
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/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include "time_meas.h"
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#include <math.h>
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#include <unistd.h>
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#include <string.h>
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#include "assertions.h"
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#include <pthread.h>
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#include "common/config/config_userapi.h"
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#include <common/utils/threadPool/thread-pool.h>
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// global var for openair performance profiler
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int opp_enabled = 0;
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double cpu_freq_GHz __attribute__ ((aligned(32)));
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double cpu_freq_GHz __attribute__ ((aligned(32)))=0.0;
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static uint32_t max_cpumeasur;
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static time_stats_t **measur_table;
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notifiedFIFO_t measur_fifo;
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double get_cpu_freq_GHz(void)
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{
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if (cpu_freq_GHz <1 ) {
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time_stats_t ts = {0};
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reset_meas(&ts);
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ts.trials++;
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ts.in = rdtsc_oai();
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sleep(1);
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ts.diff = (rdtsc_oai()-ts.in);
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cpu_freq_GHz = (double)ts.diff/1000000000;
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printf("CPU Freq is %f \n", cpu_freq_GHz);
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}
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return cpu_freq_GHz;
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}
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void print_meas_now(time_stats_t *ts,
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const char *name,
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FILE *file_name)
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{
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if (opp_enabled) {
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//static double cpu_freq_GHz = 3.2;
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//if (cpu_freq_GHz == 0.0)
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//cpu_freq_GHz = get_cpu_freq_GHz(); // super slow
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if (ts->trials>0) {
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//fprintf(file_name,"Name %25s: Processing %15.3f ms for SF %d, diff_now %15.3f \n", name,(ts->p_time/(cpu_freq_GHz*1000000.0)),subframe,ts->p_time);
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fprintf(file_name,"%15.3f us, diff_now %15.3f \n",(ts->p_time/(cpu_freq_GHz*1000.0)),(double)ts->p_time);
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}
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}
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}
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void print_meas(time_stats_t *ts,
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const char *name,
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time_stats_t *total_exec_time,
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time_stats_t *sf_exec_time)
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{
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if (opp_enabled) {
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static int first_time = 0;
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static double cpu_freq_GHz = 0.0;
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if (cpu_freq_GHz == 0.0)
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cpu_freq_GHz = get_cpu_freq_GHz();
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if (first_time == 0) {
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first_time=1;
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if ((total_exec_time == NULL) || (sf_exec_time== NULL))
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fprintf(stderr, "%25s %25s %25s %25s %25s %6f\n","Name","Total","Per Trials", "Num Trials","CPU_F_GHz", cpu_freq_GHz);
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else
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fprintf(stderr, "%25s %25s %25s %20s %15s %6f\n","Name","Total","Average/Frame","Trials", "CPU_F_GHz", cpu_freq_GHz);
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}
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if (ts->trials>0) {
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//printf("%20s: total: %10.3f ms, average: %10.3f us (%10d trials)\n", name, ts->diff/cpu_freq_GHz/1000000.0, ts->diff/ts->trials/cpu_freq_GHz/1000.0, ts->trials);
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if ((total_exec_time == NULL) || (sf_exec_time== NULL)) {
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fprintf(stderr, "%25s: %15.3f us; %15d; %15.3f us;\n",
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name,
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(ts->diff/ts->trials/cpu_freq_GHz/1000.0),
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ts->trials,
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ts->max/cpu_freq_GHz/1000.0);
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} else {
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fprintf(stderr, "%25s: %15.3f ms (%5.2f%%); %15.3f us (%5.2f%%); %15d;\n",
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name,
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(ts->diff/cpu_freq_GHz/1000000.0),
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((ts->diff/cpu_freq_GHz/1000000.0)/(total_exec_time->diff/cpu_freq_GHz/1000000.0))*100, // percentage
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(ts->diff/ts->trials/cpu_freq_GHz/1000.0),
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((ts->diff/ts->trials/cpu_freq_GHz/1000.0)/(sf_exec_time->diff/sf_exec_time->trials/cpu_freq_GHz/1000.0))*100, // percentage
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ts->trials);
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}
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}
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}
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}
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int print_meas_log(time_stats_t *ts,
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const char *name,
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time_stats_t *total_exec_time,
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time_stats_t *sf_exec_time,
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char *output)
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{
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int stroff = 0;
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static int first_time = 0;
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static double cpu_freq_GHz = 0.0;
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if (cpu_freq_GHz == 0.0)
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cpu_freq_GHz = get_cpu_freq_GHz();
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if (first_time == 0) {
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first_time=1;
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if ((total_exec_time == NULL) || (sf_exec_time== NULL))
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stroff += sprintf(output, "%25s %25s %25s %25s %25s %6f\n","Name","Total","Per Trials", "Num Trials","CPU_F_GHz", cpu_freq_GHz);
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else
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stroff += sprintf(output+stroff, "%25s %25s %25s %20s %15s %6f\n","Name","Total","Average/Frame","Trials", "CPU_F_GHz", cpu_freq_GHz);
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}
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if (ts->trials>0) {
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//printf("%20s: total: %10.3f ms, average: %10.3f us (%10d trials)\n", name, ts->diff/cpu_freq_GHz/1000000.0, ts->diff/ts->trials/cpu_freq_GHz/1000.0, ts->trials);
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if ((total_exec_time == NULL) || (sf_exec_time== NULL)) {
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stroff += sprintf(output+stroff, "%25s: %15.3f us; %15d; %15.3f us;\n",
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name,
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(ts->diff/ts->trials/cpu_freq_GHz/1000.0),
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ts->trials,
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ts->max/cpu_freq_GHz/1000.0);
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} else {
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stroff += sprintf(output+stroff, "%25s: %15.3f ms (%5.2f%%); %15.3f us (%5.2f%%); %15d;\n",
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name,
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(ts->diff/cpu_freq_GHz/1000000.0),
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((ts->diff/cpu_freq_GHz/1000000.0)/(total_exec_time->diff/cpu_freq_GHz/1000000.0))*100, // percentage
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(ts->diff/ts->trials/cpu_freq_GHz/1000.0),
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((ts->diff/ts->trials/cpu_freq_GHz/1000.0)/(sf_exec_time->diff/sf_exec_time->trials/cpu_freq_GHz/1000.0))*100, // percentage
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ts->trials);
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}
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}
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return stroff;
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}
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double get_time_meas_us(time_stats_t *ts)
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{
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static double cpu_freq_GHz = 0.0;
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if (cpu_freq_GHz == 0.0)
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cpu_freq_GHz = get_cpu_freq_GHz();
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if (ts->trials>0)
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return (ts->diff/ts->trials/cpu_freq_GHz/1000.0);
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return 0;
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}
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/* function for the asynchronous measurment module: cpu stat are sent to a dedicated thread
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* which is in charge of computing the cpu time spent in a given function/algorithm...
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*/
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time_stats_t *register_meas(char *name)
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{
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for (int i=0; i<max_cpumeasur; i++) {
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if (measur_table[i] == NULL) {
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measur_table[i] = (time_stats_t *)malloc(sizeof(time_stats_t));
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memset(measur_table[i] ,0,sizeof(time_stats_t));
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measur_table[i]->meas_name = strdup(name);
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measur_table[i]->meas_index = i;
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measur_table[i]->tpoolmsg =newNotifiedFIFO_elt(sizeof(time_stats_msg_t),0,NULL,NULL);
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measur_table[i]->tstatptr = (time_stats_msg_t *)NotifiedFifoData(measur_table[i]->tpoolmsg);
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return measur_table[i];
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}
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}
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return NULL;
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}
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void free_measurtbl(void) {
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for (int i=0; i<max_cpumeasur; i++) {
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if (measur_table[i] != NULL) {
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free(measur_table[i]->meas_name);
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delNotifiedFIFO_elt(measur_table[i]->tpoolmsg);
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free(measur_table[i]);
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}
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}
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//free the fifo...
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}
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void run_cpumeasur(void) {
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struct sched_param schedp;
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pthread_setname_np(pthread_self(), "measur");
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schedp.sched_priority=0;
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int rt=pthread_setschedparam(pthread_self(), SCHED_IDLE, &schedp);
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AssertFatal(rt==0, "couldn't set measur thread priority: %s\n",strerror(errno));
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initNotifiedFIFO(&measur_fifo);
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while(1) {
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notifiedFIFO_elt_t *msg = pullNotifiedFIFO(&measur_fifo);
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time_stats_msg_t *tsm = (time_stats_msg_t *)NotifiedFifoData(msg);
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switch(tsm->msgid) {
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case TIMESTAT_MSGID_START:
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measur_table[tsm->timestat_id]->in=tsm->ts;
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(measur_table[tsm->timestat_id]->trials)++;
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break;
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case TIMESTAT_MSGID_STOP:
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/// process duration is the difference between two clock points
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measur_table[tsm->timestat_id]->p_time = (tsm->ts - measur_table[tsm->timestat_id]->in);
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measur_table[tsm->timestat_id]->diff += measur_table[tsm->timestat_id]->p_time;
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if ( measur_table[tsm->timestat_id]->p_time > measur_table[tsm->timestat_id]->max )
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measur_table[tsm->timestat_id]->max = measur_table[tsm->timestat_id]->p_time;
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break;
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case TIMESTAT_MSGID_DISPLAY:
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{
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char aline[256];
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int start, stop;
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if (tsm->displayFunc != NULL) {
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if(tsm->timestat_id >= 0) {
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start=tsm->timestat_id ;
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stop=start+1;
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}
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else {
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start=0;
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stop=max_cpumeasur ;
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}
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for (int i=start ; i<stop ; i++) {
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if (measur_table[i] != NULL) {
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sprintf(aline,"%s: %15.3f us ",measur_table[i]->meas_name, measur_table[i]->trials==0?0:( (measur_table[i]->trials/measur_table[i]->diff )/ cpu_freq_GHz /1000 ));
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tsm->displayFunc(aline);
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}
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}
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}
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}
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break;
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case TIMESTAT_MSGID_END:
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free_measurtbl();
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delNotifiedFIFO_elt(msg);
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pthread_exit(NULL);
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break;
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default:
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break;
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}
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delNotifiedFIFO_elt(msg);
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}
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}
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void init_meas(void) {
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pthread_t thid;
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paramdef_t cpumeasur_params[] = CPUMEASUR_PARAMS_DESC;
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int numparams=sizeof(cpumeasur_params)/sizeof(paramdef_t);
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int rt = config_get( cpumeasur_params,numparams,CPUMEASUR_SECTION);
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AssertFatal(rt >= 0, "cpumeasur configuration couldn't be performed");
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measur_table=calloc(max_cpumeasur,sizeof( time_stats_t *));
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AssertFatal(measur_table!=NULL, "couldn't allocate %u cpu measurements entries\n",max_cpumeasur);
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rt=pthread_create(&thid,NULL, (void *(*)(void *))run_cpumeasur, NULL);
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AssertFatal(rt==0, "couldn't create cpu measurment thread: %s\n",strerror(errno));
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}
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void end_meas(void) {
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notifiedFIFO_elt_t *nfe = newNotifiedFIFO_elt(sizeof(time_stats_msg_t),0,NULL,NULL);
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time_stats_msg_t *msg = (time_stats_msg_t *)NotifiedFifoData(nfe);
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msg->msgid = TIMESTAT_MSGID_END ;
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pushNotifiedFIFO(&measur_fifo, nfe);
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}
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