Date: Mon, 7 Oct 1996 10:48:50 +0100 (MET) From: "Julian H. Stacey" <jhs@freebsd.org> To: current@freebsd.org Subject: tunefs.8c -o lacks syntax for keywords space and time Message-ID: <199610070948.KAA16083@vector.jhs.no_domain>
next in thread | raw e-mail | index | archive | help
Current /usr/src/*/tunefs/tunefs.8c appears to be a bit damaged ...
The syntax :
-o space
is not specified in the manual. On very-current:
cd /usr/src/*/tunefs ; nroff -man *.8 | more
one gets:
-o optimize_preference
The file system can either try to minimize the time spent allo-
cating blocks, or it can attempt to minimize the space fragmenta-
tion on the disk. Optimization for space has much higher overhead
for file writes. The kernel normally changes the preference au-
tomatically as the percent fragmentation changes on the file sys-
tem.
Notice the keywords space & time are not in bold or anything ?
doesnt appear documented anywhere what optimize_preference should be ?
(I just happen to remember space & time as keywords from the past).
This syntax is accepted though:
tunefs -m 0 /dev/rsd2s2a
tunefs: minimum percentage of free space changes from 8% to 0%
tunefs: should optimize for space with minfree < 8%
tunefs -o space /dev/rsd2s2a
tunefs: optimization preference changes from time to space
Admittedly my binary is a couple of weeks old, ditto my groff macros, but my
/usr/src/*/tunefs/tunefs.8c is within 12 hours of current (as of writing).
Maybe someone current could take a look ?
Julian
---
Julian H. Stacey jhs@freebsd.org http://www.freebsd.org/~jhs/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199610070948.KAA16083>