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