pmdumptext outputs the values of performance metrics collected live
or from a set of Performance Co-Pilot (PCP) archives. By default,
the metric values are displayed in tab separated columns, prefixed by
Unless directed to another host by the -h option, or to one or more
sets of archives by the -a option, pmdumptext will contact pmcd(1) on
the local host to obtain the required information.
pmdumptext may be run in interactive mode with the -i option which
displays the values in equal width columns. Without this option, no
attempt is made to line up any values allowing the output to be
easily parsed by other applications.
The format of the output can be further controlled by changing the
precision of the values with -P, the width of the columns with -w,
and the format of the values with the -G and -F options for the
shortest of scientific or fixed digits, and a fixed width format,
The metrics to be dumped can be listed on the command line, in a
config file, or piped to pmdumptext on stdin. A metric consists of
an optional source (host or archive), the metric name, and an
optional instance list immediately after the name. A colon is used
to separate a host name from the metric, and a forward slash (``/'')
to separate an archive name from the metric. Instances are enclosed
in square brackets and a comma is used between each instance if more
than one is stated. For example, some legal metrics are:
The format of a metric is further described in PCPIntro(1). A
normalization value may optionally follow a metric name in a config
file or on stdin. The metric value will be scaled by this value.
For example, if the file system ``/dev/root'' has a capacity of
1965437 bytes, then the percentage of the file system that is used
could be dumped with this config:
A normalization value may not be used with metrics specified as
command line arguments.
A metric name is not required to be a leaf node in the Performance
Metrics Name Space (PMNS), except when one or more instances are
specified. For example, to dump all file system metrics, only
filesys is required to dump filesys.capacity, filesys.used,
The command line options -A, -O, -S and -T control the alignment,
offset, start and end time when visualizing metrics from archives.
These options are common to most Performance Co-Pilot tools and are
fully described in PCPIntro(1).
The other available options are:
-a Specify a set of archive from which metrics can be obtained
for a particular host. archive is the name of a directory
containing archives, or the basename of an archive, previously
created by pmlogger(1). Multiple sets of archives (separated
by commas or in different -a options) from different hosts may
be given, but only one set of archives per host is permitted.
Any metrics that are not associated with a specific host or
archive will use the first archive as their source.
-C Exit before dumping any values, but after parsing the metrics.
Metrics, instances, normals and units are listed if -m, -l, -N
and/or -u are specified.
-c If no metrics are listed on the command line, a config file
can be used to specify the metrics to be dumped. Unlike the
command line metrics, each metric may be followed by a
normalization value. Empty lines and lines that begin with
``#'' are ignored.
-d Specify the delimiter that separates each column of output.
The delimiter may only be a single character.
-f Use the format string for formatting the timestamp with each
set of values. The syntax of this string is the same as that
described in strftime(3). An empty format string (eg. '')
will remove the timestamps from the output.
-F Output the values in a fixed width format of 6 characters.
Positive numbers are represented as dd.ddu and negative
numbers as [-]d.ddu. The postfix multiplier may have the
values K(10^3), M(10^6), G(10^9) and T(10^12). For example,
4567 would be displayed as 4.57K, even if the units of the
metric are bytes.
-G Output the values using the shortest of a scientific format or
a decimal notation.
-h Fetch performance metrics from pmcd(1) on host, rather than
the default localhost.
-H Show all headers before dumping any metric values. This is
equivalent to -lmNu.
-i Output the data in fixed width columns using fixed width
values (see -F) so that it is human-readable. This option may
not be used with -P as fixed point values are not fixed width.
This option will also affect the output of -m and -u options
as the metric, instance and unit names will be truncated.
-l Show the source of the metrics. In interactive mode, the host
of the metrics is shown. In non-interactive mode, this option
shows the source of the metrics with the metric name even if
-m is not specified.
-m Output the metric names before the metric values. The source
and units of the metrics may also be dumped with the -l and -u
options respectively. If in interactive mode, the metrics
names may be truncated, and the instance names, where
relevant, are also truncated on the follow line.
-M Output the column number and complete metric names before
dumping any values. If the -l flag is also specified, the
source of the metrics is also shown.
-n Load an alternative local PMNS from the file pmnsfile.-o When a timestamp is being reported (ie. unless an empty format
string is given with the -f option), the timestamp is prefixed
with the offset in seconds from the start of the set of
archives or the beginning of the execution of pmdumptext.
-N Output the normalization factors before the metric values.
-P Set the precision of the values. This option may not be used
with -F as the precision is constant. The default precision
-r Output the raw metric values, do not convert counters to
rates. This option also causes pmdumptext to ignore the
normalization values for each metric.
-R Repeat the header every lines of output. This option is
useful in interactive mode when using a graphical window to
avoid the header scrolling beyond the window's buffer, and to
realign the header if the window is resized.
-s pmdumptext will terminate after this many samples.
-t The interval argument follows the syntax described in
PCPIntro(1), and in the simplest form may be an unsigned
integer (the implied units in this case are seconds). The
default interval is 1.0 seconds.
-u Output the units of the metrics before the first values, but
after the metric names if -m is also specified.
-U Change the output when values are unavailable to string. The
default string is ``?''.
-w Set the column width of the output. Strings will be truncated
to this width, and maybe postfixed by ``...'' if the width is
greater than 5.
-X Output the column number and complete metric names, one-per-
line, both before dumping the first set of values and again
each time the header is repeated.
-z Use the local timezone of the host that is the source of the
performance metrics, as identified by either the -h or the
first -a options. The default is to use the timezone of the
-Z Use timezone when displaying the date and time. Timezone is
in the format of the environment variable TZ as described in
pmdumptext supports the dumping of metrics from multiple hosts or set
of archives. The metrics listed on the command line or in the config
file may have no specific source or come from different sources.
However, restrictions apply when archives are specified on the
command line (-a) and/or in the configuration file. Firstly, there
may be only one set of archives for any one host. Secondly, the
hosts of any metrics with host sources must correspond to the host of
a set of archives, either on the command line or previously as the
source of another metric.
The options -a and -h may not be used together.
All metrics that have the semantics of counters are automatically
converted to rates over the sample time interval. In interactive
mode, pmdumptext will also change the units of some metrics so that
they are easier to comprehend:
o All metrics with space units (bytes to terabytes) are scaled
to bytes. Note that 1024 bytes with be represented as 1.02K,
o Metrics that are counters with time units (nanoseconds to
hours) represent time utilization over the sample interval.
The unit strings of such metrics is changed to ``Time
Utilization'' or abbreviated to ``util'' and the values are
normalized to the range zero to one.
o To examine the load on two hosts foo and bar, simultaneously:
$ pmdumptext -il 'foo:kernel.all.load' 'bar:kernel.all.load'
Source foo bar
Wed Jul 30 11:37:53 0.309 0.409
Wed Jul 30 11:37:54 0.309 0.409
Wed Jul 30 11:37:55 0.309 0.409
o To output the memory utilization on a remote host called bong with
a simpler timestamp:
$ pmdumptext -imu -h bong -f '%H:%M:%S' mem.util
Metric kernel fs_ctl _dirty _clean free user
Units b b b b b b
09:32:28 8.98M 0.97M 0.00 3.90M 7.13M 46.13M
09:32:29 8.99M 0.98M 0.00 5.71M 5.39M 46.03M
09:32:30 8.99M 1.07M 0.00 5.81M 4.55M 46.69M
09:32:31 9.03M 1.16M 0.00 6.45M 3.48M 47.00M
09:32:32 9.09M 1.18M 20.48K 6.23M 3.29M 47.30M
o To dump all metrics collected in an archive at a 30 second interval
to a file for processing by another tool:
$ pminfo -a archive | pmdumptext -t 30s -m -a archive > outfile
Environment variables with the prefix PCP_ are used to parameterize
the file and directory names used by PCP. On each installation, the
file /etc/pcp.conf contains the local values for these variables.
The $PCP_CONF variable may be used to specify an alternative
configuration file, as described in pcp.conf(5).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at ⟨http://www.pcp.io/⟩.
If you have a bug report for this manual page, send it to
email@example.com. This page was obtained from the project's upstream
Git repository ⟨git://git.pcp.io/pcp⟩ on 2017-03-13. If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
Performance Co-Pilot SGI PMDUMPTEXT(1)