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Diffstat (limited to 'docs/manpages/vfs_readahead.8')
-rw-r--r-- | docs/manpages/vfs_readahead.8 | 188 |
1 files changed, 12 insertions, 176 deletions
diff --git a/docs/manpages/vfs_readahead.8 b/docs/manpages/vfs_readahead.8 index 09533b52e7..2f12641009 100644 --- a/docs/manpages/vfs_readahead.8 +++ b/docs/manpages/vfs_readahead.8 @@ -1,161 +1,13 @@ +'\" t .\" Title: vfs_readahead .\" Author: [see the "AUTHOR" section] -.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/> -.\" Date: 06/18/2010 +.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/> +.\" Date: 03/06/2011 .\" Manual: System Administration tools .\" Source: Samba 3.5 .\" Language: English .\" -.TH "VFS_READAHEAD" "8" "06/18/2010" "Samba 3\&.5" "System Administration tools" -.\" ----------------------------------------------------------------- -.\" * (re)Define some macros -.\" ----------------------------------------------------------------- -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.\" toupper - uppercase a string (locale-aware) -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.de toupper -.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ -\\$* -.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz -.. -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.\" SH-xref - format a cross-reference to an SH section -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.de SH-xref -.ie n \{\ -.\} -.toupper \\$* -.el \{\ -\\$* -.\} -.. -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.\" SH - level-one heading that works better for non-TTY output -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.de1 SH -.\" put an extra blank line of space above the head in non-TTY output -.if t \{\ -.sp 1 -.\} -.sp \\n[PD]u -.nr an-level 1 -.set-an-margin -.nr an-prevailing-indent \\n[IN] -.fi -.in \\n[an-margin]u -.ti 0 -.HTML-TAG ".NH \\n[an-level]" -.it 1 an-trap -.nr an-no-space-flag 1 -.nr an-break-flag 1 -\." make the size of the head bigger -.ps +3 -.ft B -.ne (2v + 1u) -.ie n \{\ -.\" if n (TTY output), use uppercase -.toupper \\$* -.\} -.el \{\ -.nr an-break-flag 0 -.\" if not n (not TTY), use normal case (not uppercase) -\\$1 -.in \\n[an-margin]u -.ti 0 -.\" if not n (not TTY), put a border/line under subheading -.sp -.6 -\l'\n(.lu' -.\} -.. -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.\" SS - level-two heading that works better for non-TTY output -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.de1 SS -.sp \\n[PD]u -.nr an-level 1 -.set-an-margin -.nr an-prevailing-indent \\n[IN] -.fi -.in \\n[IN]u -.ti \\n[SN]u -.it 1 an-trap -.nr an-no-space-flag 1 -.nr an-break-flag 1 -.ps \\n[PS-SS]u -\." make the size of the head bigger -.ps +2 -.ft B -.ne (2v + 1u) -.if \\n[.$] \&\\$* -.. -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.\" BB/BE - put background/screen (filled box) around block of text -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.de BB -.if t \{\ -.sp -.5 -.br -.in +2n -.ll -2n -.gcolor red -.di BX -.\} -.. -.de EB -.if t \{\ -.if "\\$2"adjust-for-leading-newline" \{\ -.sp -1 -.\} -.br -.di -.in -.ll -.gcolor -.nr BW \\n(.lu-\\n(.i -.nr BH \\n(dn+.5v -.ne \\n(BHu+.5v -.ie "\\$2"adjust-for-leading-newline" \{\ -\M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[] -.\} -.el \{\ -\M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[] -.\} -.in 0 -.sp -.5v -.nf -.BX -.in -.sp .5v -.fi -.\} -.. -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.\" BM/EM - put colored marker in margin next to block of text -.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.de BM -.if t \{\ -.br -.ll -2n -.gcolor red -.di BX -.\} -.. -.de EM -.if t \{\ -.br -.di -.ll -.gcolor -.nr BH \\n(dn -.ne \\n(BHu -\M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[] -.in 0 -.nf -.BX -.in -.fi -.\} -.. +.TH "VFS_READAHEAD" "8" "03/06/2011" "Samba 3\&.5" "System Administration tools" .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- @@ -166,13 +18,11 @@ .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- -.SH "Name" +.SH "NAME" vfs_readahead \- pre\-load the kernel buffer cache -.SH "Synopsis" -.fam C +.SH "SYNOPSIS" .HP \w'\ 'u -\FCvfs objects = readahead\F[] -.fam +vfs objects = readahead .SH "DESCRIPTION" .PP This VFS module is part of the @@ -180,7 +30,7 @@ This VFS module is part of the suite\&. .PP This -\FCvfs_readahead\F[] +vfs_readahead VFS module detects read requests at multiples of a given offset (hex 0x80000 by default) and then tells the kernel via either the readahead system call (on Linux) or the posix_fadvise system call to pre\-fetch this data into the buffer cache\&. .PP This module is useful for Windows Vista clients reading data using the Windows Explorer program, which asynchronously does multiple file read requests at offset boundaries of 0x80000 bytes\&. @@ -188,7 +38,7 @@ This module is useful for Windows Vista clients reading data using the Windows E The offset multiple used is given by the readahead:offset option, which defaults to 0x80000\&. .PP The size of the disk read operations performed by -\FCvfs_readahead\F[] +vfs_readahead is determined by the readahead:length option\&. By default this is set to the same value as the readahead:offset option and if not set explicitly will use the current value of readahead:offset\&. .PP This module is stackable\&. @@ -214,7 +64,7 @@ The following suffixes may be applied to BYTES: .sp -1 .IP \(bu 2.3 .\} -\FCK\F[] +K \- BYTES is a number of kilobytes .RE .sp @@ -226,7 +76,7 @@ The following suffixes may be applied to BYTES: .sp -1 .IP \(bu 2.3 .\} -\FCM\F[] +M \- BYTES is a number of megabytes .RE .sp @@ -238,31 +88,17 @@ The following suffixes may be applied to BYTES: .sp -1 .IP \(bu 2.3 .\} -\FCG\F[] +G \- BYTES is a number of gigabytes .SH "EXAMPLES" .sp .if n \{\ .RS 4 .\} -.fam C -.ps -1 .nf -.if t \{\ -.sp -1 -.\} -.BB lightgray adjust-for-leading-newline -.sp -1 - \fI[hypothetical]\fR \m[blue]\fBvfs objects = readahead\fR\m[] -.EB lightgray adjust-for-leading-newline -.if t \{\ -.sp 1 -.\} .fi -.fam -.ps +1 .if n \{\ .RE .\} |