oracular (1) i686-linux-gnu-gp-display-text.1.gz
NAME
gp-display-text - Display the performance data in plain text format
SYNOPSIS
gprofng display text [option(s)] [commands] [-script script-file] experiment(s)
DESCRIPTION
Print a plain text version of the various displays supported by gprofng.
The input consists of one or more experiment directories. Through commands, the user controls the
output.
There is a rich set of commands to control the display of the data. The NOTES section lists the most
common ones. The gprofng user guide lists all the commands supported.
Commands specified on the command line need to be prepended with the dash ('-') symbol.
In this example, a function overview will be shown, followed by the source code listing of function my-
func, annotated with the performance metrics that have been recorded during the data collection and
stored in experiment directory my-exp.er:
$ gprofng display text -functions -source my-func my-exp.er
Instead of, or in addition to, specifying these commands on the command line, commands may also be
included in a file called the script-file.
Note that the commands are processed and interpreted from left to right, so the order matters.
If this tool is invoked without options, commands, or a script file, it starts in interpreter mode. The
user can then issue the commands interactively. The session is terminated with the exit command in the
interpreter.
OPTIONS
--version
Print the version number and exit.
--help
Print usage information and exit.
-script script-file
Execute the commands stored in the script file. This feature may be combined with commands specified
at the command line.
NOTES
Many commands are supported. Below, the more common ones are listed in mostly alphabetical order,
because sometimes it is more logical to swap the order of two entries.
There are many more commands. These are documented in the user guide.
"callers-callees"
In a callers-callees panel, it is shown which function(s) call the target function (the callers) and
what functions it is calling (the callees). This command prints the callers-callees panel for each
of the functions, in the order specified by the function sort metric.
"calltree"
Display the dynamic call graph from the experiment, showing the hierarchical metrics at each level.
"compare {on | off | delta | ratio}"
By default, the results for multiple experiments are aggregated. This command changes this to enable
the comparison of experiments for certain views (e.g. the function view). The first experiment
specified is defined to be the reference. The following options are supported:
"on"
For each experiment specified on the command line, print the values for the metrics that have
been activated for the experiment.
"off"
Disable the comparison of experiments. This is the default.
"delta"
Print the values for the reference experiment. The results for the other experiments are shown
as a delta relative to the reference (current-reference).
"ratio"
Print the values for the reference experiment. The results for the other experiments are shown
as a ratio relative to the reference (current/reference).
"disasm function-name"
List the source code and instructions for the function specified. The instructions are annotated
with the metrics used.
"fsingle function-name [n]"
Write a summary panel for the specified function. The optional parameter n is needed for those cases
where several functions have the same name.
"fsummary"
Write a summary panel for each function in the function list.
"functions"
Display a list of all functions executed. For each function the used metrics (e.g. the CPU time) are
shown.
"header"
Shows several operational characteristics of the experiment(s) specified on the command line.
"limit n"
Limit the output to n lines.
"lines"
Write a list of source lines and their metrics, ordered by the current sort metric.
"metric_list"
Display the currently selected metrics in the function view and a list of all the metrics available
for the target experiment(s).
"metrics metric-spec"
Define the metrics to be displayed in the function and callers-callees overviews.
The metric-spec can either be the keyword default to restore the default metrics selection, or a
colon separated list with metrics.
A special metric is "hwc". It automatically expands to the active set of hardware event counters
used in the experiment(s).
If both instructions and clock cycles have been measured, the "CPI" and "IPC" metrics can be used to
see the Clockcycles Per Instruction and Instructions Per Clockcyle values, respectively.
The gprofng user guide has more details how to define metrics.
"name {short | long | mangled}[:{soname | nosoname}]"
Specify whether to use the short, long, or mangled form of function names. Optionally, the load
object that the function is part of can be included in the output by adding the soname keyword. It
can also be ommitted (nosoname), which is the default.
Whether there is an actual difference between these types of names depends on the language.
Note that there should be no (white)space to the left and right of the colon (:).
This option should not be confused with the keyword name in a metric definition, which is used to
specify that the names of functions should be shown in the function overview.
"overview"
Shows a summary of the recorded performance data for the experiment(s) specified on the command line.
"pcs"
Write a list of program counters (PCs) and their metrics, ordered by the current sort metric.
"sort metric-spec"
Sort the function list on the metric-spec given.
@IndexSubentry{Sort, Reverse order} The data can be sorted in reverse order by prepending the metric
definition with a minus (-) sign.
For example sort -e.totalcpu.
@IndexSubentry{Sort, Reset to default} A default metric for the sort operation has been defined and
since this is a persistent command, this default can be restored with "default" as the key (sort
default).
"source function-name"
List the source code for the function specified, annotated with the metrics used.
"viewmode {user | expert | machine}"
This command is only relevant for Java programs. For all other languages supported, the viewmode
setting has no effect.
The following options are supported:
"user"
Show the Java call stacks for Java threads, but do not show housekeeping threads. The function
view includes a function called <JVM-System>. This represents the aggregated time from non-Java
threads. In case the JVM software does not report a Java call stack, time is reported against
the function <no Java callstack recorded>.
"expert"
Show the Java call stacks for Java threads when the user Java code is executed, and machine call
stacks when JVM code is executed, or when the JVM software does not report a Java call stack.
Show the machine call stacks for housekeeping threads.
"machine"
Show the actual native call stacks for all threads. This is the view mode for C, C++, and
Fortran.
SEE ALSO
gprofng(1), gp-archive(1), gp-collect-app(1), gp-display-gui(1), gp-display-html(1), gp-display-src(1) The user guide for gprofng is maintained as a Texinfo manual. If the info and gprofng programs are correctly installed, the command info gprofng should give access to this document.
COPYRIGHT
Copyright (c) 2022-2024 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free
Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with
no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is
included in the section entitled "GNU Free Documentation License".