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-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
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.IX Title "VIRT-TOP 1"
-.TH VIRT-TOP 1 "2007-10-17" "ocaml-libvirt-0.3.2.9" "Virtualization Support"
+.TH VIRT-TOP 1 "2011-01-06" "virt-top-1.0.4" "Virtualization Support"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
.SH "NAME"
virt\-top \- 'top'\-like utility for virtualization stats
.SH "SUMMARY"
.IX Item "-c uri or --connect uri"
Connect to \s-1URI\s0 given. The default is to connect to the Xen
hypervisor.
+.Sp
+To connect to \s-1QEMU/KVM\s0 you would normally do \fI\-c qemu:///system\fR
+.Sp
+To connect to libvirtd on a remote machine you would normally do
+\&\fI\-c xen://host/\fR
+.Sp
+Full details on connection URIs is available at
+<http://libvirt.org/uri.html>
.IP "\fB\-d delay\fR" 4
.IX Item "-d delay"
Set the delay between screen updates in seconds.
.IX Item "-o sort"
Set the sort order to one of:
\&\fBcpu\fR (sort by \f(CW%CPU\fR used),
-\&\fBmem\fR (sort by memory used),
+\&\fBmem\fR (sort by total memory),
\&\fBtime\fR (sort by total time),
\&\fBid\fR (sort by domain \s-1ID\s0),
\&\fBname\fR (sort by domain name),
Not every version of virt-top supports \s-1CSV\s0 output \- it depends how the
program was compiled (see \fI\s-1README\s0\fR file in the source distribution
for details).
+.Sp
+To save space you can compress your \s-1CSV\s0 files (if your shell supports
+this feature, eg. \fIbash\fR):
+.Sp
+.Vb 1
+\& virt\-top \-\-csv >(gzip \-9 > output.csv.gz)
+.Ve
+.Sp
+You can use a similar trick to split the \s-1CSV\s0 file up. In this example
+the \s-1CSV\s0 file is split every 1000 lines into files called
+\&\fIoutput.csv.00\fR, \fIoutput.csv.01\fR etc.
+.Sp
+.Vb 1
+\& virt\-top \-\-csv >(split \-d \-l 1000 \- output.csv.)
+.Ve
.IP "\fB\-\-no\-csv\-cpu\fR" 4
.IX Item "--no-csv-cpu"
Disable domain \s-1CPU\s0 stats in \s-1CSV\s0 output.
To send error messages to syslog you can do:
.Sp
.Vb 1
-\& virt-top --debug >(logger -t virt-top)
+\& virt\-top \-\-debug >(logger \-t virt\-top)
.Ve
.Sp
See also \s-1REPORTING\s0 \s-1BUGS\s0 below.
.IP "\fB\-\-init\-file filename\fR" 4
.IX Item "--init-file filename"
Read \fIfilename\fR as the init file instead of the default which is
-\&\fI$HOME/.virt\-toprc\fR. See also \s-1INIT\s0 \s-1FILE\s0 below.
+\&\fI\f(CI$HOME\fI/.virt\-toprc\fR. See also \s-1INIT\s0 \s-1FILE\s0 below.
.IP "\fB\-\-no\-init\-file\fR" 4
.IX Item "--no-init-file"
Do not read any init file.
.IX Item "--script"
Script mode. There will be no user interface. This is most useful
when used together with the \fI\-\-csv\fR and \fI\-n\fR options.
+.IP "\fB\-\-end\-time time\fR" 4
+.IX Item "--end-time time"
+The program will exit at the \fItime\fR given.
+.Sp
+The time may be given in one of the following formats:
+.RS 4
+.IP "\fIYYYY-MM-DD \s-1HH:MM:SS\s0\fR" 4
+.IX Item "YYYY-MM-DD HH:MM:SS"
+End time is the date and time given.
+.IP "\fI\s-1HH:MM:SS\s0\fR" 4
+.IX Item "HH:MM:SS"
+End time is the time given, today.
+.IP "\fI+HH:MM:SS\fR" 4
+.IX Item "+HH:MM:SS"
+End time is \s-1HH\s0 hours, \s-1MM\s0 minutes, \s-1SS\s0 seconds in the future (counted
+from the moment that program starts).
+.IP "\fI+secs\fR" 4
+.IX Item "+secs"
+End time is \fIsecs\fR seconds in the future.
+.RE
+.RS 4
+.Sp
+For example to run the program for 3 minutes you could do:
+.Sp
+.Vb 1
+\& virt\-top \-\-end\-time +00:03:00
+.Ve
+.Sp
+or:
+.Sp
+.Vb 1
+\& virt\-top \-\-end\-time +180
+.Ve
+.Sp
+Not every version of virt-top supports this option \- it depends how the
+program was compiled (see \fI\s-1README\s0\fR file in the source distribution
+for details).
+.RE
.IP "\fB\-\-help\fR" 4
.IX Item "--help"
Display usage summary.
+.IP "\fB\-\-version\fR" 4
+.IX Item "--version"
+Display version number and exit.
.SH "KEYS"
.IX Header "KEYS"
Note that keys are case sensitive. For example use upper-case \fIP\fR
Sort by \f(CW%CPU\fR.
.IP "\fIM\fR" 4
.IX Item "M"
-Sort by memory.
+Sort by total memory. Note that this shows the total memory
+allocated to the guest, not the memory being used.
.IP "\fIT\fR" 4
.IX Item "T"
Sort by total time.
.IP "\fBscript\fR \fItrue|false\fR" 4
.IX Item "script true|false"
Sets script mode.
+.IP "\fBend-time\fR \fItime\fR" 4
+.IX Item "end-time time"
+Set the time at which the program exits. See above for the
+time formats supported.
.IP "\fBoverwrite-init-file\fR \fIfalse\fR" 4
.IX Item "overwrite-init-file false"
If set to \fIfalse\fR then the \fIW\fR key will not overwrite the
.IX Header "SEE ALSO"
\&\fItop\fR\|(1),
\&\fIvirsh\fR\|(1),
-\&\fIxm\fR\|(1),
-\&\fIxentop\fR\|(1),
+<http://www.libvirt.org/ocaml/>,
<http://www.libvirt.org/>,
-<http://et.redhat.com/~rjones/>,
+<http://people.redhat.com/~rjones/>,
<http://caml.inria.fr/>
.SH "AUTHORS"
.IX Header "AUTHORS"
Richard W.M. Jones <rjones @ redhat . com>
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
-(C) Copyright 2007 Red Hat Inc., Richard W.M. Jones
+(C) Copyright 2007\-2011 Red Hat Inc., Richard W.M. Jones
http://libvirt.org/
.PP
This program is free software; you can redistribute it and/or modify
Bugs can be viewed on the Red Hat Bugzilla page:
<https://bugzilla.redhat.com/>.
.PP
-If you find a bug in virt\-top, please follow these steps to report it:
+If you find a bug in virt-top, please follow these steps to report it:
.IP "1. Check for existing bug reports" 4
.IX Item "1. Check for existing bug reports"
Go to <https://bugzilla.redhat.com/> and search for similar bugs.
Run
.Sp
.Vb 1
-\& virt-top --debug virt-top.log
+\& virt\-top \-\-debug virt\-top.log
.Ve
.Sp
and keep \fIvirt\-top.log\fR. It contains error messages which you
should submit with your bug report.
.IP "3. Get version of virt-top and version of libvirt." 4
.IX Item "3. Get version of virt-top and version of libvirt."
-In virt\-top, press the \fIh\fR (help) key, and write down the version of
-virt-top and the version of libvirt. They are shown in the first
-line.
+Use:
+.Sp
+.Vb 1
+\& virt\-top \-\-version
+.Ve
+.Sp
+If you can get the precise version of libvirt you are using
+then that too is helpful.
.IP "4. Submit a bug report." 4
.IX Item "4. Submit a bug report."
Go to <https://bugzilla.redhat.com/> and enter a new bug.