Date: Sat, 23 Apr 2016 20:45:52 +0000 (UTC) From: Benedict Reuschling <bcr@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r298522 - head/share/man/man5 Message-ID: <201604232045.u3NKjq9j014830@repo.freebsd.org>
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Author: bcr (doc committer) Date: Sat Apr 23 20:45:52 2016 New Revision: 298522 URL: https://svnweb.freebsd.org/changeset/base/298522 Log: The default value of MINFREE is defined to be 8% in ufs/ffs/fs.h and not 10%. The newfs(8) and tunefs(8) man pages had this change already, but fs(5) did not. This change makes it consistent again. Bump Dd. PR: 204929 Submitted by: amutu@amutu.com MFC after: 3 days Sponsored by: Essen Linuxhotel Hackathon 2016 Modified: head/share/man/man5/fs.5 Modified: head/share/man/man5/fs.5 ============================================================================== --- head/share/man/man5/fs.5 Sat Apr 23 20:45:09 2016 (r298521) +++ head/share/man/man5/fs.5 Sat Apr 23 20:45:52 2016 (r298522) @@ -28,7 +28,7 @@ .\" @(#)fs.5 8.2 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" -.Dd October 31, 2006 +.Dd April 23, 2016 .Dt FS 5 .Os .Sh NAME @@ -262,7 +262,7 @@ however severe performance degradations file system is run at greater than 90% full; thus the default value of .Fa fs_minfree -is 10%. +is 8%. .Pp Empirically the best trade-off between block fragmentation and overall disk utilization at a loading of 90% comes with a @@ -274,10 +274,10 @@ 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 8%, 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 8%, fragmentation is unlikely to be problematical, and the file system defaults to optimizing for time. .Pp
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