155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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#ifndef __TIME_MEAS_DEFS__H__
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#define __TIME_MEAS_DEFS__H__
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#include <unistd.h>
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#include <math.h>
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#include <stdint.h>
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#include <time.h>
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#include <errno.h>
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#include <stdio.h>
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#include <pthread.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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// global var to enable openair performance profiler
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extern int opp_enabled;
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double cpu_freq_GHz;
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#if defined(__x86_64__) || defined(__i386__)
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typedef struct {
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long long in;
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long long diff;
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long long diff_now;
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long long p_time; /*!< \brief absolute process duration */
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long long diff_square; /*!< \brief process duration square */
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long long max;
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int trials;
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} time_stats_t;
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#elif defined(__arm__)
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typedef struct {
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uint32_t in;
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uint32_t diff_now;
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uint32_t diff;
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uint32_t p_time; /*!< \brief absolute process duration */
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uint32_t diff_square; /*!< \brief process duration square */
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uint32_t max;
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int trials;
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} time_stats_t;
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#endif
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static inline void start_meas(time_stats_t *ts) __attribute__((always_inline));
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static inline void stop_meas(time_stats_t *ts) __attribute__((always_inline));
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void print_meas_now(time_stats_t *ts, const char* name, FILE* file_name);
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void print_meas(time_stats_t *ts, const char* name, time_stats_t * total_exec_time, time_stats_t * sf_exec_time);
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double get_time_meas_us(time_stats_t *ts);
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double get_cpu_freq_GHz(void);
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#if defined(__i386__)
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static inline unsigned long long rdtsc_oai(void) __attribute__((always_inline));
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static inline unsigned long long rdtsc_oai(void)
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{
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unsigned long long int x;
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__asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
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return x;
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}
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#elif defined(__x86_64__)
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static inline unsigned long long rdtsc_oai(void) __attribute__((always_inline));
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static inline unsigned long long rdtsc_oai(void)
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{
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unsigned long long a, d;
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__asm__ volatile ("rdtsc" : "=a" (a), "=d" (d));
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return (d<<32) | a;
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}
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#elif defined(__arm__)
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static inline uint32_t rdtsc_oai(void) __attribute__((always_inline));
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static inline uint32_t rdtsc_oai(void)
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{
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uint32_t r = 0;
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asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r"(r) );
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return r;
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}
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#endif
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static inline void start_meas(time_stats_t *ts)
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{
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if (opp_enabled) {
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ts->trials++;
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ts->in = rdtsc_oai();
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}
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}
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static inline void stop_meas(time_stats_t *ts)
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{
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if (opp_enabled) {
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long long out = rdtsc_oai();
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ts->diff_now = (out-ts->in);
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ts->diff_now = (out-ts->in);
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ts->diff += (out-ts->in);
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/// process duration is the difference between two clock points
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ts->p_time = (out-ts->in);
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ts->diff_square += (out-ts->in)*(out-ts->in);
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if ((out-ts->in) > ts->max)
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ts->max = out-ts->in;
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}
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}
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static inline void reset_meas(time_stats_t *ts) {
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ts->trials=0;
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ts->diff=0;
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ts->diff_now=0;
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ts->p_time=0;
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ts->diff_square=0;
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ts->max=0;
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}
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static inline void copy_meas(time_stats_t *dst_ts,time_stats_t *src_ts)
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{
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if (opp_enabled) {
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dst_ts->trials=src_ts->trials;
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dst_ts->diff=src_ts->diff;
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dst_ts->max=src_ts->max;
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}
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}
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#endif
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