fe75e26ab6
The entire tree's polluted with inappropriate trailing whitespace. This commit rids our environment of all of those useless keystrokes. Unfortunately, it sure ain't a permanent solution and requires every contributor to instruct their editor(s) to prevent or eliminate them. Plus it's strongly recommended we all insert something like what's shown below to our '.gitconfig' file so as to provide at least some warnings when we try to apply any patches (git am) that do contain the #@!%& things! References(s): ~/.gitconfig excerpt --------------------------------- [core] whitespace = trailing-space, space-before-tab, blank-at-eof [apply] whitespace = warn --------------------------------- ~/.gitconfig excerpt Signed-off-by: Jim Warner <james.warner@comcast.net>
105 lines
2.9 KiB
Groff
105 lines
2.9 KiB
Groff
.\" slabtop.1 - manpage for the slabtop(1) utility, part of procps-ng
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.\"
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.\" Copyright (C) 2003 Chris Rivera
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.\" Licensed under the terms of the GNU Library General Public License, v2
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.TH SLABTOP "1" "June 2011" "procps-ng" "User Commands"
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.SH NAME
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slabtop \- display kernel slab cache information in real time
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.SH SYNOPSIS
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.B slabtop
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[\fIoptions\fR]
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.SH DESCRIPTION
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.B slabtop
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displays detailed kernel slab cache information in real time. It displays a
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listing of the top caches sorted by one of the listed sort criteria. It also
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displays a statistics header filled with slab layer information.
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.SH OPTIONS
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Normal invocation of
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.B slabtop
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does not require any options. The behavior, however, can be fine-tuned by
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specifying one or more of the following flags:
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.TP
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\fB\-d\fR, \fB\-\-delay\fR=\fIN\fR
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Refresh the display every
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.I n
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in seconds. By default,
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.B slabtop
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refreshes the display every three seconds. To exit the program, hit
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.BR q.
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.TP
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\fB\-s\fR, \fB\-\-sort\fR=\fIS\fR
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Sort by \fIS\fR, where \fIS\fR is one of the sort criteria.
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.TP
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\fB\-o\fR, \fB\-\-once\fR
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Display the output once and then exit.
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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Display version information and exit.
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Display usage information and exit.
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.SH SORT CRITERIA
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The following are valid sort criteria used to sort the individual slab caches
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and thereby determine what are the "top" slab caches to display. The default
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sort criteria is to sort by the number of objects ("o").
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.PP
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The sort criteria can also be changed while slabtop is running by pressing
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the associated character.
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.TS
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l l l.
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\fBcharacter description header\fR
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a number of active objects ACTIVE
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b objects per slab OBJ/SLAB
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c cache size CACHE SIZE
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l number of slabs SLABS
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v number of active slabs N/A
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n name NAME
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o number of objects OBJS
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p pages per slab N/A
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s object size OBJ SIZE
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u cache utilization USE
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.TE
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.SH COMMANDS
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.B slabtop
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accepts keyboard commands from the user during use. The following are
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supported. In the case of letters, both cases are accepted.
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.PP
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Each of the valid sort characters are also accepted, to change the sort
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routine. See the section
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.BR "SORT CRITERIA" .
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.TP
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.BR <SPACEBAR>
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Refresh the screen.
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.TP
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.BR Q
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Quit the program.
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.SH FILES
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.TP
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.I /proc/slabinfo
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slab information
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.SH "SEE ALSO"
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.BR free (1),
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.BR ps (1),
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.BR top (1),
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.BR vmstat (8)
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.SH NOTES
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Currently,
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.B slabtop
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requires a 2.4 or later kernel (specifically, a version 1.1 or later
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.IR /proc/slabinfo ).
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Kernel 2.2 should be supported in the future.
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.PP
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The slabtop statistic header is tracking how many bytes of slabs are being
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used and it not a measure of physical memory. The 'Slab' field in the
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/proc/meminfo file is tracking information about used slab physical memory.
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.SH AUTHORS
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Written by Chris Rivera and Robert Love.
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.PP
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.B slabtop
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was inspired by Martin Bligh's perl script,
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.BR vmtop .
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.SH "REPORTING BUGS"
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Please send bug reports to
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.UR procps@freelists.org
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.UE
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