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| author |   deraadt <deraadt@openbsd.org> | 1998-07-20 22:47:11 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 1998-07-20 22:47:11 +0000 |
| commit | 265c49e7e066329503109446bbbb7dc9a06adbbd (patch) | |
| tree | f1f9e1b5a8da7cd32d520d1cb1342dbab49edd46 | |
| parent | use warnx() (diff) | |
| download | wireguard-openbsd-265c49e7e066329503109446bbbb7dc9a06adbbd.tar.xz wireguard-openbsd-265c49e7e066329503109446bbbb7dc9a06adbbd.zip | |
MINFREE is 5%; hgweigand@wiesbaden.netsurf.de
| -rw-r--r-- | sbin/tunefs/tunefs.8 | 10 | ||||
| -rw-r--r-- | share/man/man5/fs.5 | 10 |
2 files changed, 10 insertions, 10 deletions
diff --git a/sbin/tunefs/tunefs.8 b/sbin/tunefs/tunefs.8 index abf78ad9877..587454af038 100644 --- a/sbin/tunefs/tunefs.8 +++ b/sbin/tunefs/tunefs.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: tunefs.8,v 1.5 1997/11/20 08:21:30 millert Exp $ +.\" $OpenBSD: tunefs.8,v 1.6 1998/07/20 22:47:11 deraadt Exp $ .\" $NetBSD: tunefs.8,v 1.8 1995/03/18 15:01:29 cgd Exp $ .\" .\" Copyright (c) 1983, 1991, 1993 @@ -96,9 +96,9 @@ this parameter should be set higher. .It Fl m Ar minfree This value specifies the percentage of space held back from normal users; the minimum free space threshold. -The default value used is 10%. +The default value used is 5%. This value can be set to zero, however up to a factor of three -in throughput will be lost over the performance obtained at a 10% +in throughput will be lost over the performance obtained at a 5% threshold. Note that if the value is raised above the current usage level, users will be unable to allocate files until enough files have @@ -107,10 +107,10 @@ been deleted to get under the higher threshold. The file system can either try to minimize the time spent allocating blocks, or it can attempt to minimize the space fragmentation on the disk. -If the value of minfree (see above) is less than 10%, +If the value of minfree (see above) is less than 5%, then the file system should optimize for space to avoid running out of full sized blocks. -For values of minfree greater than or equal to 10%, +For values of minfree greater than or equal to 5%, fragmentation is unlikely to be problematical, and the file system can be optimized for time. .It Fl p diff --git a/share/man/man5/fs.5 b/share/man/man5/fs.5 index 41ef3382afc..53aa5a59e9b 100644 --- a/share/man/man5/fs.5 +++ b/share/man/man5/fs.5 @@ -213,13 +213,13 @@ The element may be set to 0 if no reserve of free blocks is deemed necessary, however severe performance degradations will be observed if the -file system is run at greater than 90% full; thus the default +file system is run at greater than 95% full; thus the default value of .Fa fs_minfree -is 10%. +is 5%. .Pp Empirically the best trade-off between block fragmentation and -overall disk utilization at a loading of 90% comes with a +overall disk utilization at a loading of 95% comes with a fragmentation of 8, thus the default fragment size is an eighth of the block size. .Pp @@ -228,10 +228,10 @@ The element specifies whether the file system should try to minimize the time spent allocating blocks, or if it should attempt to minimize the space fragmentation on the disk. -If the value of fs_minfree (see above) is less than 10%, +If the value of fs_minfree (see above) is less than 5%, then the file system defaults to optimizing for space to avoid running out of full sized blocks. -If the value of minfree is greater than or equal to 10%, +If the value of minfree is greater than or equal to 5%, fragmentation is unlikely to be problematical, and the file system defaults to optimizing for time. .Pp |