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/*
Author: Laurent THOMAS, Open Cells
copyleft: OpenAirInterface Software Alliance and it's licence
*/
#define __USE_GNU
#define _GNU_SOURCE
#include <stdio.h>
#include <pthread.h>
#include <sched.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <stdint.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "thread-pool.h"
#define SEP "\t"
uint64_t cpuCyclesMicroSec;
int main(int argc, char *argv[]) {
if(argc != 2) {
printf("Need one paramter: the trace Linux pipe (fifo)");
exit(1);
}
mkfifo(argv[1],0666);
int fd=open(argv[1], O_RDONLY);
if ( fd == -1 ) {
perror("open read mode trace file:");
exit(1);
}
uint64_t deb=rdtsc();
usleep(100000);
cpuCyclesMicroSec=(rdtsc()-deb)/100000;
printf("Cycles per µs: %lu\n",cpuCyclesMicroSec);
printf("Key" SEP "delay to process" SEP "processing time" SEP "delay to be read answer\n");
notifiedFIFO_elt_t doneRequest;
while ( 1 ) {
if ( read(fd,&doneRequest, sizeof(doneRequest)) == sizeof(doneRequest)) {
printf("%lu" SEP "%lu" SEP "%lu" SEP "%lu" "\n",
doneRequest.key,
(doneRequest.startProcessingTime-doneRequest.creationTime)/cpuCyclesMicroSec,
(doneRequest.endProcessingTime-doneRequest.startProcessingTime)/cpuCyclesMicroSec,
(doneRequest.returnTime-doneRequest.endProcessingTime)/cpuCyclesMicroSec
);
} else {
printf("no measurements\n");
sleep(1);
}
}
}