Valgrind BBV, Быстрый старт

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Cachegrind: a cache and branch-prediction profiler
--cachegrind-out-file=<file>
Write the profile data to
file
rather than to the default output file,
cachegrind.out.<pid>
. The
%p
and
%q
format specifiers can be used to embed the process ID and/or the contents of an environment variable in the name, as
is the case for the core option
--log-file .
5.4. cg_annotate Command-line Options
-h --help
Show the help message.
--version
Show the version number.
--show=A,B,C [default: all, using order in cachegrind.out.<pid>]
Specifies which events to show (and the column order). Default is to use all present in the
cachegrind.out.<pid>
file (and use the order in the file). Useful if you want to concentrate on, for
example, I cache misses (
--show=I1mr,ILmr
), or data read misses (
--show=D1mr,DLmr
), or LL data misses
(
--show=DLmr,DLmw
). Best used in conjunction with
--sort
.
--sort=A,B,C [default: order in cachegrind.out.<pid>]
Specifies the events upon which the sorting of the function-by-function entries will be based.
--threshold=X [default: 0.1%]
Sets the threshold for the function-by-function summary. A function is shown if it accounts for more than X% of the
counts for the primary sort event. If auto-annotating, also affects which files are annotated.
Note: thresholds can be set for more than one of the events by appending any events for the
--sort
option with a
colon and a number (no spaces, though). E.g. if you want to see each function that covers more than 1% of LL read
misses or 1% of LL write misses, use this option:
--sort=DLmr:1,DLmw:1
--auto=<no|yes> [default: no]
When enabled, automatically annotates every file that is mentioned in the function-by-function summary that can be
found. Also gives a list of those that couldn’t be found.
--context=N [default: 8]
Print N lines of context before and after each annotated line. Avoids printing large sections of source files that were
not executed. Use a large number (e.g. 100000) to show all source lines.
-I<dir> --include=<dir> [default: none]
Adds a directory to the list in which to search for files. Multiple
-I
/
--include
options can be given to add multiple
directories.
5.5. cg_diff Command-line Options
-h --help
Show the help message.
--version
Show the version number.
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