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+.\" Automatically generated by Pod::Man 2.23 (Pod::Simple 3.14)
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-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
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.IX Title "VIRT-TOP 1"
-.TH VIRT-TOP 1 "2009-10-05" "virt-top-1.0.4" "Virtualization Support"
+.TH VIRT-TOP 1 "2011-02-02" "virt-top-1.0.5" "Virtualization Support"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.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),
.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\-\-stream\fR" 4
+.IX Item "--stream"
+Stream mode. All output is sent to stdout. This can be used from
+shell scripts etc. There is no user interface.
+.IP "\fB\-\-block\-in\-bytes\fR" 4
+.IX Item "--block-in-bytes"
+Show I/O statistics in Bytes. Default is shown in the number of Requests.
.IP "\fB\-\-end\-time time\fR" 4
.IX Item "--end-time time"
The program will exit at the \fItime\fR given.
.IP "\fIs\fR or \fId\fR" 4
.IX Item "s or d"
Change the delay between screen updates.
+.IP "\fIB\fR" 4
+.IX Item "B"
+Toggle Block I/O statistics so they are shown in either bytes or requests.
.IP "\fI0\fR (number 0)" 4
.IX Item "0 (number 0)"
Show the normal list of domains display.
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 "\fBstream\fR \fItrue|false\fR" 4
+.IX Item "stream true|false"
+Sets stream mode.
+.IP "\fBblock-in-bytes\fR \fItrue|false\fR" 4
+.IX Item "block-in-bytes true|false"
+Show block device statistics in bytes.
.IP "\fBend-time\fR \fItime\fR" 4
.IX Item "end-time time"
Set the time at which the program exits. See above for the
Note that in the current implementation, options specified in
the init file override options specified on the command line.
This is a bug and this behaviour may change in the future.
+.SH "NOTES"
+.IX Header "NOTES"
+.SS "Block I/O statistics"
+.IX Subsection "Block I/O statistics"
+This I/O value is the amount of I/O since the previous iteration
+of virt-top. To calculate speed of I/O, you should divide
+the number by delay secs.
+.SS "\s-1NETWORK\s0 \s-1RX\s0 \s-1BYTES\s0 \s-1AND\s0 \s-1PACKETS\s0"
+.IX Subsection "NETWORK RX BYTES AND PACKETS"
+Libvirt/virt\-top has no way to know that a packet transmitted to a
+guest was received (eg. if the guest is not listening). In the
+network \s-1RX\s0 stats, virt-top reports the packets transmitted to the
+guest, on the basis that the guest might receive them.
+.PP
+In particular this includes broadcast packets. Because of the way
+that Linux bridges work, if the guest is connected to a bridge, it
+will probably see a steady \*(L"background noise\*(R" of \s-1RX\s0 packets even when
+the network interface is idle or down. These are caused by \s-1STP\s0
+packets generated by the bridge.
.SH "SEE ALSO"
.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
git.annexia.org / virt-top.git / blobdiff