usr.sbin/diskinfo/diskinfo.c

56 static void speeddisk(int fd, off_t mediasize, u_int sectorsize);
57 static void commandtime(int fd, off_t mediasize, u_int sectorsize);
68 	u_int	sectorsize, fwsectors, fwheads, zoned = 0;
111 		error = ioctl(fd, DIOCGSECTORSIZE, &sectorsize);
134 			printf("\t%u", sectorsize);
136 			printf("\t%jd", (intmax_t)mediasize/sectorsize);
141 				    (fwsectors * fwheads * sectorsize));
149 			printf("\t%-12u\t# sectorsize\n", sectorsize);
153 			    (intmax_t)mediasize/sectorsize);
158 				    (fwsectors * fwheads * sectorsize));
171 			commandtime(fd, mediasize, sectorsize);
173 			speeddisk(fd, mediasize, sectorsize);
185 rdsect(int fd, off_t blockno, u_int sectorsize)
189 	lseek(fd, (off_t)blockno * sectorsize, SEEK_SET);
190 	error = read(fd, sector, sectorsize);
193 	if (error != (int)sectorsize)
248 speeddisk(int fd, off_t mediasize, u_int sectorsize)
253 	sectorcount = mediasize / sectorsize;
267 		rdsect(fd, b0, sectorsize);
269 		rdsect(fd, b1, sectorsize);
279 		rdsect(fd, b0, sectorsize);
281 		rdsect(fd, b1, sectorsize);
290 		rdsect(fd, b0, sectorsize);
292 		rdsect(fd, b1, sectorsize);
301 		rdsect(fd, b0, sectorsize);
310 		rdsect(fd, b0, sectorsize);
319 		rdsect(fd, b0, sectorsize);
328 		rdsect(fd, b0, sectorsize);
335 	rdsect(fd, 0, sectorsize);
343 	b0 = sectorcount / 2 - bulk * (1024*1024 / sectorsize) / 2 - 1;
344 	rdsect(fd, b0, sectorsize);
352 	b0 = sectorcount - bulk * (1024*1024 / sectorsize) - 1;
353 	rdsect(fd, b0, sectorsize);
365 commandtime(int fd, off_t mediasize, u_int sectorsize)
372 	rdsect(fd, 0, sectorsize);
383 	rdsect(fd, 0, sectorsize);
386 		rdsect(fd, 0, sectorsize);