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| author | Alexander Motin <mav@FreeBSD.org> | 2009-12-24 21:39:30 +0000 |
|---|---|---|
| committer | Alexander Motin <mav@FreeBSD.org> | 2009-12-24 21:39:30 +0000 |
| commit | 851b967a27b2ada7193bb5076f33b5be7d8a07ea (patch) | |
| tree | ae38c1e07ec0380f14f81ef1ed8106d458985b80 /usr.sbin/diskinfo/diskinfo.c | |
| parent | 95139d9d6a072308639b75e6146ff52c928cf0bd (diff) | |
| download | src-851b967a27b2ada7193bb5076f33b5be7d8a07ea.tar.gz src-851b967a27b2ada7193bb5076f33b5be7d8a07ea.zip | |
Make diskinfo report disk stripe size and offset. It should help users to
make file systems optimally aligned and tuned for better performance.
Notes
Notes:
svn path=/head/; revision=200968
Diffstat (limited to 'usr.sbin/diskinfo/diskinfo.c')
| -rw-r--r-- | usr.sbin/diskinfo/diskinfo.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/usr.sbin/diskinfo/diskinfo.c b/usr.sbin/diskinfo/diskinfo.c index 7ecf7cb4f328..1f967b732da3 100644 --- a/usr.sbin/diskinfo/diskinfo.c +++ b/usr.sbin/diskinfo/diskinfo.c @@ -58,7 +58,7 @@ main(int argc, char **argv) { int i, ch, fd, error; char buf[BUFSIZ], ident[DISK_IDENT_SIZE]; - off_t mediasize; + off_t mediasize, stripesize, stripeoffset; u_int sectorsize, fwsectors, fwheads; while ((ch = getopt(argc, argv, "ctv")) != -1) { @@ -104,11 +104,19 @@ main(int argc, char **argv) error = ioctl(fd, DIOCGFWHEADS, &fwheads); if (error) fwheads = 0; + error = ioctl(fd, DIOCGSTRIPESIZE, &stripesize); + if (error) + stripesize = 0; + error = ioctl(fd, DIOCGSTRIPEOFFSET, &stripeoffset); + if (error) + stripeoffset = 0; if (!opt_v) { printf("%s", argv[i]); printf("\t%u", sectorsize); printf("\t%jd", (intmax_t)mediasize); printf("\t%jd", (intmax_t)mediasize/sectorsize); + printf("\t%jd", (intmax_t)stripesize); + printf("\t%jd", (intmax_t)stripeoffset); if (fwsectors != 0 && fwheads != 0) { printf("\t%jd", (intmax_t)mediasize / (fwsectors * fwheads * sectorsize)); @@ -124,6 +132,8 @@ main(int argc, char **argv) (intmax_t)mediasize, buf); printf("\t%-12jd\t# mediasize in sectors\n", (intmax_t)mediasize/sectorsize); + printf("\t%-12jd\t# stripesize\n", stripesize); + printf("\t%-12jd\t# stripeoffset\n", stripeoffset); if (fwsectors != 0 && fwheads != 0) { printf("\t%-12jd\t# Cylinders according to firmware.\n", (intmax_t)mediasize / (fwsectors * fwheads * sectorsize)); |