Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+.\"						Hey, EMACS: -*- nroff -*-
+.\" First parameter, NAME, should be all caps
+.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
+.\" other parameters are allowed: see man(7), man(1)
+.TH measurefs.reiser4 8 "28 Apr, 2003" reiser4progs "reiser4progs manual"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+measurefs.reiser4 \- the program for measuring reiser4 filesystem
+parameters (fragmentation, node packing, etc.).
+.SH SYNOPSIS
+.B measurefs.reiser4
+[ options ] FILE
+.SH DESCRIPTION
+.B measurefs.reiser4
+is reiser4 filesystem measure program. You can estimate reiser4
+filesystem fragmentation, packingm etc. structures by using it.
+.SH COMMON OPTIONS
+.TP
+.B -V, --version
+prints program version.
+.TP
+.B -?, -h, --help
+prints program help.
+.TP
+.B -y, --yes
+assumes an answer 'yes' to all questions.
+.TP
+.B -f, --force
+forces measurefs to use whole disk, not block device or mounted partition.
+.TP
+.B -c, --cache N
+sets tree cache node number to passed value. This affects very much
+behavior of libreiser4. It affects speed, tree allocation, etc.
+.SH MEASUREMENT OPTIONS
+.TP
+.B -S, --tree-stat
+shows different tree statistics (node packing, internal nodes, leaves, etc)
+.TP
+.B -T, --tree-frag
+measures total tree fragmentation. The result is fragmentation factor
+- value from 0.00000 (minimal fragmentation) to 1.00000 (maximal one). Most
+probably, this factor may affect sequential read performance.
+.TP
+.B -D, --data-frag
+measures average files fragmentation. This means, that fragmentation of
+each file in filesystem will be measured separately and results will
+be averaged. The result is fragmentation factor - value from 0.00000
+(minimal fragmentation) to 1.00000 (maximal one).
+.sp 1
+Note, that for the fresh filesystem (created not very long time ago)
+and even fully filled by data, this value will be pretty small.
+.TP
+.B -F, --file-frag FILE
+measures fragmentation of the specified file. The result is
+fragmentation factor - value from 0.00000 (minimal fragmentation) to
+1.00000 (maximal one). Note, that fragmentation of a small file
+(depends of used tail policy), which consists of tail items, is not
+very reliable value. That is because, they is always afoot due to
+balancing.
+.sp 1
+Examples:
+.sp 1
+measurefs.reiser4 -F /usr/bin /dev/hda2
+.br
+measurefs.reiser4 -F /bin/bash /dev/hda2
+.TP
+.B -E, --show-file
+show file fragmentation for each file if --data-frag is specified.
+.SH PLUGIN OPTIONS
+.TP
+.B -p, --print-profile
+prints the plugin profile. This is the set of default plugins used for all
+parts of a filesystem -- format, nodes, files, directories, hashes, etc. If
+--override is specified, then prints modified plugins.
+.TP
+.B -l, --print-plugins
+prints all plugins libreiser4 know about.
+.TP
+.B -o, --override TYPE=PLUGIN, ...
+overrides the default plugin of the type "TYPE" by the plugin "PLUGIN"
+in the plugin profile.
+.sp 1
+Examples:
+.sp 1
+measurefs.reiser4 -o nodeptr=nodeptr41,hash=rupasov_hash /dev/hda2
+.RS
+.SH REPORTING BUGS
+Report bugs to <reiserfs-devel@vger.kernel.org>
+.SH SEE ALSO
+.BR debugfs.reiser4(8),
+.BR mkfs.reiser4(8),
+.BR fsck.reiser4(8)
+.SH AUTHOR
+This manual page was written by Yury Umanets <umka@namesys.com>