C++ (Cpp) read_file_mmap_psb Beispiele

Beispiel #1

Datei: getlines.c Projekt: SikhNerd/miller

int main(int argc, char** argv) {
	int nreps = 1;
	if (argc != 2 && argc != 3)
		usage(argv[0]);
	char* filename = argv[1];
	if (argc == 3)
		(void)sscanf(argv[2], "%d", &nreps);

	double s, e, t;
	int bc;

	for (int i = 0; i < nreps; i++) {
		s = get_systime();
		bc = read_file_mlr_get_line(filename);
		e = get_systime();
		t = e - s;
		printf("type=getdelim,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_fgetc(filename);
		e = get_systime();
		t = e - s;
		printf("type=fgetc,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_fgetc_psb(filename);
		e = get_systime();
		t = e - s;
		printf("type=fgetc_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_mmap_psb(filename);
		e = get_systime();
		t = e - s;
		printf("type=mmap_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_pfr_psb(filename);
		e = get_systime();
		t = e - s;
		printf("type=pfr_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);
	}

	return 0;
}

Beispiel #2

Datei: getlines.c Projekt: indera/miller

int main(int argc, char** argv) {
	int nreps = 1;
	int do_write = 0;
	if (argc != 2 && argc != 3 && argc != 4)
		usage(argv[0]);
	char* filename = argv[1];
	if (argc >= 3)
		(void)sscanf(argv[2], "%d", &nreps);
	if (argc >= 4)
		(void)sscanf(argv[3], "%d", &do_write);

	double s, e, t;
	int bc;

	for (int i = 0; i < nreps; i++) {

		s = get_systime();
		bc = read_file_mlr_get_line(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=getdelim,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_mlr_getcdelim(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=mlr_getcdelim,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_mlr_getsdelim(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=mlr_getsdelim,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = popen_file_mlr_getsdelim("zcat -cf < ", filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=mlr_popen_getsdelim,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_fgetc_fixed_len(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=fgetc_fixed_len,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_getc_unlocked_fixed_len(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=getc_unlocked_fixed_len,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_getc_unlocked_psb(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=getc_unlocked_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_fgetc_psb(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=fgetc_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_mmap_psb(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=mmap_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);

		s = get_systime();
		bc = read_file_pfr_psb(filename, do_write);
		e = get_systime();
		t = e - s;
		printf("type=pfr_psb,t=%.6lf,n=%d\n", t, bc);
		fflush(stdout);
	}

	return 0;
}