HEAPTRACK_PRINT(1) User Commands HEAPTRACK_PRINT(1)
NAME
heaptrack_print - heap memory profiler for linux, print utility
DESCRIPTION
heaptrack_print - analyze heaptrack data files.
heaptrack is a heap memory profiler which records information about
calls to heap allocation functions such as malloc, operator new etc.
pp. This print utility can then be used to analyze the generated data
files.
OPTIONS
-f [ --file ] arg
The heaptrack data file to print.
-d [ --diff ] arg
Find the differences to this file.
-t [ --shorten-templates ] [=arg(=1)] (=1)
Shorten template identifiers.
-m [ --merge-backtraces ] [=arg(=1)] (=1)
Merge backtraces. NOTE: the merged peak consumption is not cor-
rect.
-p [ --print-peaks ] [=arg(=1)] (=1)
Print backtraces to top allocators, sorted by peak consumption.
-a [ --print-allocators ] [=arg(=1)] (=1)
Print backtraces to top allocators, sorted by number of calls to
allocation functions.
-T [ --print-temporary ] [=arg(=1)] (=1)
Print backtraces to top allocators, sorted by number of tempo-
rary allocations.
-l [ --print-leaks ] [=arg(=1)] (=0)
Print backtraces to leaked memory allocations.
-o [ --print-overall-allocated ] [=arg(=1)] (=0) Print top overall al-
locators, ignoring memory frees.
-n [ --peak-limit ] [=arg(=10)] (=10)
Limit the number of reported peaks.
-s [ --sub-peak-limit ] [=arg(=5)] (=5)
Limit the number of reported backtraces of merged peak loca-
tions.
-H [ --print-histogram ] arg
Path to output file where an allocation size histogram will be
written to.
-F [ --print-flamegraph ] arg
Path to output file where a flame-graph compatible stack file
will be written to. To visualize the resulting file, use flame-
graph.pl from https://github.com/brendangregg/FlameGraph:
heaptrack_print heaptrack.someapp.PID.gz -F stacks.txt
# optionally pass --reverse to flamegraph.pl flamegraph.pl --ti-
tle "heaptrack: allocations" --colors mem \
--countname allocations < stacks.txt > heaptrack.someapp.PID.svg
[firefox|chromium] heaptrack.someapp.PID.svg
-M [ --print-massif ] arg
Path to output file where a massif compatible data file will be
written to.
--massif-threshold arg (=1)
Percentage of current memory usage, below which allocations are
aggregated into a 'below threshold' entry. This is only used in
the massif output file so far.
--massif-detailed-freq arg (=2)
Frequency of detailed snapshots in the massif output file. In-
crease this to reduce the file size. You can set the value to
zero to disable detailed snapshots.
--filter-bt-function arg
Only print allocations where the backtrace contains the given
function.
-h [ --help ]
Show this help message.
-v [ --version ]
Displays version information.
SEE ALSO
The full documentation for heaptrack_print is maintained as a Texinfo
manual. If the info and heaptrack_print programs are properly in-
stalled at your site, the command
info heaptrack_print
should give you access to the complete manual.
heaptrack_print 1.0.0 March 2017 HEAPTRACK_PRINT(1)
Generated by dwww version 1.15 on Wed Jun 26 10:14:08 CEST 2024.