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- Committer: Package Import Robot
- Author(s): Laurent Léonard
- Date: 2011-08-15 23:19:06 UTC
- mfrom: (3.1.4 sid)
- Revision ID: package-import@ubuntu.com-20110815231906-rp38flx2z9jpx1gx
Tags: 1.0.6-1
* [7c3e6a1] Imported Upstream version 1.0.6
* [f0a771b] Redo patch
* [6629856] Bump Standards-Version to 3.9.2
* [930eafd] New patch 0002-Ensure-manpages-get-built-when-using-native-
compiler.patch
* [f0a771b] Redo patch
* [6629856] Bump Standards-Version to 3.9.2
* [930eafd] New patch 0002-Ensure-manpages-get-built-when-using-native-
compiler.patch
- files added:
- .tx
- files removed:
- virt-top/virt-top.1
- files modified:
- .gitignore
added
removed
virt-top/virt-top.1
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.\" ========================================================================
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.\"
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.IX Title "VIRT-TOP 1"
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.TH VIRT-TOP 1 "2011-01-06" "virt-top-1.0.4" "Virtualization Support"
128
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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virt\-top \- 'top'\-like utility for virtualization stats
134
.SH "SUMMARY"
135
.IX Header "SUMMARY"
136
virt-top [\-options]
137
.SH "DESCRIPTION"
138
.IX Header "DESCRIPTION"
139
virt-top is a \fItop\fR\|(1)\-like utility for showing stats of virtualized
140
domains. Many keys and command line options are the same as for
141
ordinary \fItop\fR.
142
.PP
143
It uses libvirt so it is capable of showing stats across a variety of
144
different virtualization systems.
145
.SH "OPTIONS"
146
.IX Header "OPTIONS"
147
.IP "\fB\-1\fR" 4
148
.IX Item "-1"
149
Display physical CPUs by default (instead of domains).
150
When virt-top is running, use the \fI1\fR key to toggle
151
between physical CPUs and domains display.
152
.IP "\fB\-2\fR" 4
153
.IX Item "-2"
154
Display network interfaces by default (instead of domains).
155
When virt-top is running, use the \fI2\fR key to toggle
156
between network interfaces and domains display.
157
.IP "\fB\-3\fR" 4
158
.IX Item "-3"
159
Display block devices (virtual disks) by default (instead of domains).
160
When virt-top is running, use the \fI3\fR key to toggle
161
between block devices and domains display.
162
.IP "\fB\-b\fR" 4
163
.IX Item "-b"
164
Batch mode. In this mode keypresses are ignored.
165
.IP "\fB\-c uri\fR or \fB\-\-connect uri\fR" 4
166
.IX Item "-c uri or --connect uri"
167
Connect to \s-1URI\s0 given. The default is to connect to the Xen
168
hypervisor.
169
.Sp
170
To connect to \s-1QEMU/KVM\s0 you would normally do \fI\-c qemu:///system\fR
171
.Sp
172
To connect to libvirtd on a remote machine you would normally do
173
\&\fI\-c xen://host/\fR
174
.Sp
175
Full details on connection URIs is available at
176
<http://libvirt.org/uri.html>
177
.IP "\fB\-d delay\fR" 4
178
.IX Item "-d delay"
179
Set the delay between screen updates in seconds.
180
The default is 3.0 seconds. You can change this
181
while virt-top is running by pressing either \fIs\fR or \fId\fR key.
182
.IP "\fB\-n iterations\fR" 4
183
.IX Item "-n iterations"
184
Set the number of iterations to run. The default
185
is to run continuously.
186
.IP "\fB\-o sort\fR" 4
187
.IX Item "-o sort"
188
Set the sort order to one of:
189
\&\fBcpu\fR (sort by \f(CW%CPU\fR used),
190
\&\fBmem\fR (sort by total memory),
191
\&\fBtime\fR (sort by total time),
192
\&\fBid\fR (sort by domain \s-1ID\s0),
193
\&\fBname\fR (sort by domain name),
194
\&\fBnetrx\fR (sort by network received bytes),
195
\&\fBnettx\fR (sort by network transmitted bytes),
196
\&\fBblockrdrq\fR (sort by block device [disk] read requests),
197
\&\fBblockwrrq\fR (sort by block device [disk] write requests).
198
.Sp
199
While virt-top is running you can change the sort
200
order using keys \fIP\fR (cpu), \fIM\fR (memory),
201
\&\fIT\fR (total time), \fIN\fR (domain \s-1ID\s0),
202
\&\fIF\fR (interactively select the sort field).
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.IP "\fB\-s\fR" 4
204
.IX Item "-s"
205
Secure mode. Currently this does nothing.
206
.IP "\fB\-\-hist\-cpu secs\fR" 4
207
.IX Item "--hist-cpu secs"
208
Set the time in seconds between updates of the historical
209
\&\f(CW%CPU\fR at the top right of the display.
210
.IP "\fB\-\-csv file.csv\fR" 4
211
.IX Item "--csv file.csv"
212
Write the statistics to file \fIfile.csv\fR. First a header is written
213
showing the statistics being recorded in each column, then one line is
214
written for each screen update. The \s-1CSV\s0 file can be loaded directly
215
by most spreadsheet programs.
216
.Sp
217
Currently the statistics which this records vary between releases of
218
virt-top (but the column headers will stay the same, so you can use
219
those to process the \s-1CSV\s0 file).
220
.Sp
221
Not every version of virt-top supports \s-1CSV\s0 output \- it depends how the
222
program was compiled (see \fI\s-1README\s0\fR file in the source distribution
223
for details).
224
.Sp
225
To save space you can compress your \s-1CSV\s0 files (if your shell supports
226
this feature, eg. \fIbash\fR):
227
.Sp
228
.Vb 1
229
\& virt\-top \-\-csv >(gzip \-9 > output.csv.gz)
230
.Ve
231
.Sp
232
You can use a similar trick to split the \s-1CSV\s0 file up. In this example
233
the \s-1CSV\s0 file is split every 1000 lines into files called
234
\&\fIoutput.csv.00\fR, \fIoutput.csv.01\fR etc.
235
.Sp
236
.Vb 1
237
\& virt\-top \-\-csv >(split \-d \-l 1000 \- output.csv.)
238
.Ve
239
.IP "\fB\-\-no\-csv\-cpu\fR" 4
240
.IX Item "--no-csv-cpu"
241
Disable domain \s-1CPU\s0 stats in \s-1CSV\s0 output.
242
.IP "\fB\-\-no\-csv\-block\fR" 4
243
.IX Item "--no-csv-block"
244
Disable domain block device stats in \s-1CSV\s0 output.
245
.IP "\fB\-\-no\-csv\-net\fR" 4
246
.IX Item "--no-csv-net"
247
Disable domain network interface stats in \s-1CSV\s0 output.
248
.IP "\fB\-\-debug filename\fR" 4
249
.IX Item "--debug filename"
250
Send debug and error messages to \fIfilename\fR.
251
To send error messages to syslog you can do:
252
.Sp
253
.Vb 1
254
\& virt\-top \-\-debug >(logger \-t virt\-top)
255
.Ve
256
.Sp
257
See also \s-1REPORTING\s0 \s-1BUGS\s0 below.
258
.IP "\fB\-\-init\-file filename\fR" 4
259
.IX Item "--init-file filename"
260
Read \fIfilename\fR as the init file instead of the default which is
261
\&\fI\f(CI$HOME\fI/.virt\-toprc\fR. See also \s-1INIT\s0 \s-1FILE\s0 below.
262
.IP "\fB\-\-no\-init\-file\fR" 4
263
.IX Item "--no-init-file"
264
Do not read any init file.
265
.IP "\fB\-\-script\fR" 4
266
.IX Item "--script"
267
Script mode. There will be no user interface. This is most useful
268
when used together with the \fI\-\-csv\fR and \fI\-n\fR options.
269
.IP "\fB\-\-end\-time time\fR" 4
270
.IX Item "--end-time time"
271
The program will exit at the \fItime\fR given.
272
.Sp
273
The time may be given in one of the following formats:
274
.RS 4
275
.IP "\fIYYYY-MM-DD \s-1HH:MM:SS\s0\fR" 4
276
.IX Item "YYYY-MM-DD HH:MM:SS"
277
End time is the date and time given.
278
.IP "\fI\s-1HH:MM:SS\s0\fR" 4
279
.IX Item "HH:MM:SS"
280
End time is the time given, today.
281
.IP "\fI+HH:MM:SS\fR" 4
282
.IX Item "+HH:MM:SS"
283
End time is \s-1HH\s0 hours, \s-1MM\s0 minutes, \s-1SS\s0 seconds in the future (counted
284
from the moment that program starts).
285
.IP "\fI+secs\fR" 4
286
.IX Item "+secs"
287
End time is \fIsecs\fR seconds in the future.
288
.RE
289
.RS 4
290
.Sp
291
For example to run the program for 3 minutes you could do:
292
.Sp
293
.Vb 1
294
\& virt\-top \-\-end\-time +00:03:00
295
.Ve
296
.Sp
297
or:
298
.Sp
299
.Vb 1
300
\& virt\-top \-\-end\-time +180
301
.Ve
302
.Sp
303
Not every version of virt-top supports this option \- it depends how the
304
program was compiled (see \fI\s-1README\s0\fR file in the source distribution
305
for details).
306
.RE
307
.IP "\fB\-\-help\fR" 4
308
.IX Item "--help"
309
Display usage summary.
310
.IP "\fB\-\-version\fR" 4
311
.IX Item "--version"
312
Display version number and exit.
313
.SH "KEYS"
314
.IX Header "KEYS"
315
Note that keys are case sensitive. For example use upper-case \fIP\fR
316
(shift P) to sort by \f(CW%CPU\fR. \fI^\fR before a key means a Ctrl key, so
317
\&\fI^L\fR is Ctrl L.
318
.IP "\fIspace\fR or \fI^L\fR" 4
319
.IX Item "space or ^L"
320
Updates the display.
321
.IP "\fIq\fR" 4
322
.IX Item "q"
323
Quits the program.
324
.IP "\fIh\fR" 4
325
.IX Item "h"
326
Displays help.
327
.IP "\fIs\fR or \fId\fR" 4
328
.IX Item "s or d"
329
Change the delay between screen updates.
330
.IP "\fI0\fR (number 0)" 4
331
.IX Item "0 (number 0)"
332
Show the normal list of domains display.
333
.IP "\fI1\fR (number 1)" 4
334
.IX Item "1 (number 1)"
335
Toggle into showing physical CPUs. If pressed
336
again toggles back to showing domains (the normal
337
display).
338
.IP "\fI2\fR" 4
339
.IX Item "2"
340
Toggle into showing network interfaces. If pressed
341
again toggles back to showing domains.
342
.IP "\fI3\fR" 4
343
.IX Item "3"
344
Toggle into showing block devices (virtual disks). If pressed again
345
toggles back to showing domains.
346
.IP "\fIP\fR" 4
347
.IX Item "P"
348
Sort by \f(CW%CPU\fR.
349
.IP "\fIM\fR" 4
350
.IX Item "M"
351
Sort by total memory. Note that this shows the total memory
352
allocated to the guest, not the memory being used.
353
.IP "\fIT\fR" 4
354
.IX Item "T"
355
Sort by total time.
356
.IP "\fIN\fR" 4
357
.IX Item "N"
358
Sort by domain \s-1ID\s0.
359
.IP "\fIF\fR" 4
360
.IX Item "F"
361
Select the sort field interactively (there are other
362
sort fields you can choose using this key).
363
.IP "\fIW\fR" 4
364
.IX Item "W"
365
This creates or overwrites the init file with the current settings.
366
.Sp
367
This key is disabled if \fI\-\-no\-init\-file\fR was specified on the
368
command line or if \fIoverwrite-init-file false\fR is given in
369
the init file.
370
.SH "INIT FILE"
371
.IX Header "INIT FILE"
372
When virt-top starts up, it reads initial settings from the
373
file \fI.virt\-toprc\fR in the user's home directory.
374
.PP
375
The name of this file may be overridden using the \fI\-\-init\-file
376
filename\fR command line option or may be disabled entirely using
377
\&\fI\-\-no\-init\-file\fR.
378
.PP
379
The init file has a simple format. Blank lines and comments
380
beginning with \fI#\fR are ignored. Everything else is a set of
381
\&\fIkey value\fR pairs, described below.
382
.IP "\fBdisplay\fR \fItask|pcpu|block|net\fR" 4
383
.IX Item "display task|pcpu|block|net"
384
Sets the major display mode to one of \fItask\fR (tasks, the
385
default), \fIpcpu\fR (physical CPUs), \fIblock\fR (block devices),
386
or \fInet\fR (network interfaces).
387
.IP "\fBdelay\fR \fIsecs\fR" 4
388
.IX Item "delay secs"
389
Sets the delay between display updates in seconds.
390
.IP "\fBhist-cpu\fR \fIsecs\fR" 4
391
.IX Item "hist-cpu secs"
392
Sets the historical \s-1CPU\s0 delay in seconds.
393
.IP "\fBiterations\fR \fIn\fR" 4
394
.IX Item "iterations n"
395
Sets the number of iterations to run before we exit. Setting
396
this to \fI\-1\fR means to run continuously.
397
.IP "\fBsort\fR \fIcpu|mem|time|id|name|...\fR" 4
398
.IX Item "sort cpu|mem|time|id|name|..."
399
Sets the sort order. The option names are the same as for
400
the command line \fI\-o\fR option.
401
.IP "\fBconnect\fR \fIuri\fR" 4
402
.IX Item "connect uri"
403
Sets the default connection \s-1URI\s0.
404
.IP "\fBdebug\fR \fIfilename\fR" 4
405
.IX Item "debug filename"
406
Sets the default filename to use for debug and error messages.
407
.IP "\fBcsv\fR \fIfilename\fR" 4
408
.IX Item "csv filename"
409
Enables \s-1CSV\s0 output to the named file.
410
.IP "\fBcsv-cpu\fR \fItrue|false\fR" 4
411
.IX Item "csv-cpu true|false"
412
Enable or disable domain \s-1CPU\s0 stats in \s-1CSV\s0 output.
413
.IP "\fBcsv-block\fR \fItrue|false\fR" 4
414
.IX Item "csv-block true|false"
415
Enable or disable domain block device stats in \s-1CSV\s0 output.
416
.IP "\fBcsv-net\fR \fItrue|false\fR" 4
417
.IX Item "csv-net true|false"
418
Enable or disable domain network interface stats in \s-1CSV\s0 output.
419
.IP "\fBbatch\fR \fItrue|false\fR" 4
420
.IX Item "batch true|false"
421
Sets batch mode.
422
.IP "\fBsecure\fR \fItrue|false\fR" 4
423
.IX Item "secure true|false"
424
Sets secure mode.
425
.IP "\fBscript\fR \fItrue|false\fR" 4
426
.IX Item "script true|false"
427
Sets script mode.
428
.IP "\fBend-time\fR \fItime\fR" 4
429
.IX Item "end-time time"
430
Set the time at which the program exits. See above for the
431
time formats supported.
432
.IP "\fBoverwrite-init-file\fR \fIfalse\fR" 4
433
.IX Item "overwrite-init-file false"
434
If set to \fIfalse\fR then the \fIW\fR key will not overwrite the
435
init file.
436
.PP
437
Note that in the current implementation, options specified in
438
the init file override options specified on the command line.
439
This is a bug and this behaviour may change in the future.
440
.SH "NOTES"
441
.IX Header "NOTES"
442
.SS "\s-1NETWORK\s0 \s-1RX\s0 \s-1BYTES\s0 \s-1AND\s0 \s-1PACKETS\s0"
443
.IX Subsection "NETWORK RX BYTES AND PACKETS"
444
Libvirt/virt\-top has no way to know that a packet transmitted to a
445
guest was received (eg. if the guest is not listening). In the
446
network \s-1RX\s0 stats, virt-top reports the packets transmitted to the
447
guest, on the basis that the guest might receive them.
448
.PP
449
In particular this includes broadcast packets. Because of the way
450
that Linux bridges work, if the guest is connected to a bridge, it
451
will probably see a steady \*(L"background noise\*(R" of \s-1RX\s0 packets even when
452
the network interface is idle or down. These are caused by \s-1STP\s0
453
packets generated by the bridge.
454
.SH "SEE ALSO"
455
.IX Header "SEE ALSO"
456
\&\fItop\fR\|(1),
457
\&\fIvirsh\fR\|(1),
458
<http://www.libvirt.org/ocaml/>,
459
<http://www.libvirt.org/>,
460
<http://people.redhat.com/~rjones/>,
461
<http://caml.inria.fr/>
462
.SH "AUTHORS"
463
.IX Header "AUTHORS"
464
Richard W.M. Jones <rjones @ redhat . com>
465
.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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(C) Copyright 2007\-2011 Red Hat Inc., Richard W.M. Jones
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http://libvirt.org/
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.PP
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This program is free software; you can redistribute it and/or modify
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it under the terms of the \s-1GNU\s0 General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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.PP
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This program is distributed in the hope that it will be useful,
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but \s-1WITHOUT\s0 \s-1ANY\s0 \s-1WARRANTY\s0; without even the implied warranty of
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\&\s-1MERCHANTABILITY\s0 or \s-1FITNESS\s0 \s-1FOR\s0 A \s-1PARTICULAR\s0 \s-1PURPOSE\s0. See the
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\&\s-1GNU\s0 General Public License for more details.
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.PP
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You should have received a copy of the \s-1GNU\s0 General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, \s-1MA\s0 02139, \s-1USA\s0.
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.SH "REPORTING BUGS"
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.IX Header "REPORTING BUGS"
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Bugs can be viewed on the Red Hat Bugzilla page:
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<https://bugzilla.redhat.com/>.
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.PP
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If you find a bug in virt-top, please follow these steps to report it:
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.IP "1. Check for existing bug reports" 4
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.IX Item "1. Check for existing bug reports"
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Go to <https://bugzilla.redhat.com/> and search for similar bugs.
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Someone may already have reported the same bug, and they may even
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have fixed it.
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.IP "2. Capture debug and error messages" 4
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.IX Item "2. Capture debug and error messages"
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Run
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.Sp
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.Vb 1
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\& virt\-top \-\-debug virt\-top.log
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.Ve
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.Sp
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and keep \fIvirt\-top.log\fR. It contains error messages which you
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should submit with your bug report.
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.IP "3. Get version of virt-top and version of libvirt." 4
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.IX Item "3. Get version of virt-top and version of libvirt."
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Use:
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.Sp
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.Vb 1
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\& virt\-top \-\-version
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.Ve
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.Sp
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If you can get the precise version of libvirt you are using
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then that too is helpful.
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.IP "4. Submit a bug report." 4
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.IX Item "4. Submit a bug report."
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Go to <https://bugzilla.redhat.com/> and enter a new bug.
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Please describe the problem in as much detail as possible.
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.Sp
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Remember to include the version numbers (step 3) and the debug
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messages file (step 2).
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.IP "5. Assign the bug to rjones @ redhat.com" 4
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.IX Item "5. Assign the bug to rjones @ redhat.com"
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Assign or reassign the bug to \fBrjones @ redhat.com\fR (without the
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spaces). You can also send me an email with the bug number if you
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want a faster response.
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