callgrind Questions
2
I want to redirect the output of callgrind to a file name call_grind.txt, but when ever I try to do that, a file is generated but there is no output inside that file.
For example:
valgrind --tool...
1
Could anyone tell me how to interest the results from kcachegrind.
I had two versions of my code (v1, v2) both compiled in debug mode. I ran them through valgrind with options:
valgrind --tool=c...
Damarisdamarra asked 21/5, 2014 at 14:27
3
I was using valgrind tool - callgrind and kcachegrind for profiling a large project and was wondering if there is a way that callgrind reports the stats from all the functions (not just the most ex...
Prune asked 17/11, 2015 at 23:51
5
When running my program with valgrind / callgrind I get the following message a lot:
==21734== brk segment overflow in thread #1: can't grow to 0x4a39000
(with different addresses)
Note that it i...
2
Solved
I'm trying to profile (with Callgrind) a specific part of my code by removing noise and computation that I don't care about.
Here is an example of what I want to do:
for (int i=0; i<maxSample; ...
4
Solved
Total Time spent by a function in an application can be broadly divided in to two components:
Time spent on actual computation (Tcomp)
Time spent on memory accesses (Tmem)
Typically profilers p...
Condyloid asked 15/11, 2016 at 9:6
1
Goal: I would like to be able to analyze the output of callgrind (and later cachegrind too) and would like to see meaningful variable names when using the callgrind_annotate CLI.
Prior Research: I ...
1
Solved
I'm using callgrind to profile a small piece of code. Callgrind output files are well generated, their content looks ok, but I'm unable to open them with kcachegrind: I get the following error mess...
Scarlatina asked 11/1, 2017 at 10:40
4
I want to profile my code. So I do:
valgrind --tool=callgrind my_program [programm arguments]
kcachegrind callgrind.out.x
Now I have kcachegrind window like this:
There is a lot of core and l...
Goblin asked 28/10, 2016 at 12:25
3
I want to use valgrind to do some profiling, since it does not need re-build the program. (the program I want to profile is already build with “-g")
But valgrind(callgrind) is quite slow ... so he...
1
Solved
I am trying to profile for certain executable using valgrind - callgrind tool.
I have created annotated output using callgrind_annotate --auto=yes.
The created output tells me about the Ir count , ...
7
Solved
Is there any tool, other than KCacheGrind, being able to view callgrind results? Preferably for Windows platform?
1
I want to use Callgrind to find bottlenecks in some complicated Rcpp code. Since I couldn't get it to work, I decided to write a simple R file instead, to make sure it was doing what it should.
Ho...
1
Solved
I'd like to profile my application using callgrind. Now, since it takes a very long time, in the meanwhile I go on with web-browsing, compiling and other intensive tasks on the same machine.
Am I ...
1
I'm trying to understand how a program's performance changes when run with different options—I have a factor of 1.8 I'd like to explain. I've been doing profiling with [valgrind]'s callgrind ...
Poop asked 12/7, 2011 at 18:30
1
Solved
I am trying to view the annotated source using $ valgrind --tool=callgrind ./myProgram followed by $ kcachegrind using Ubuntu 12.04 (and I'm having the same problem with $ qcachegrind using Mac OSX...
Lineberry asked 10/4, 2014 at 17:49
2
I am doing some experiments with Cachegrind, Callgrind and Gem5. I noticed that a number of accesses were counted as read for cachegrind, as write for callgrind and for both read and write by gem5....
Clubman asked 3/4, 2013 at 14:44
2
Solved
I need a dynamic call graph for my app. I run it with callgrind tool (valgrind suite) and got callgrind.out.xxxxx file. Now, I want to make a graphical representation of this data. KCacheGrind does...
3
Solved
0
I have built my program with "-g -O2" and ran valgrind+cachegrind. I am unsure how to interpret the output. Here is the output:
http://daviddoria.com/Uploads/callgrind.CacheMisses
My "whole progr...
Calla asked 1/9, 2012 at 21:40
1
Solved
I am using callgrind to profile a linux multi-threaded app and mostly it's working great. I start it with instrumentation off (--instr-atstart=no) and then once setup is done i turn it on with call...
1
How to view output of gprof in kcachegrind? Is here a converter from gcc's gmon.out into callgrind.out?
Phuongphycology asked 1/9, 2011 at 17:29
1
Solved
When profiling the log Kcachegrind shows %of inclusive as 13.92%. Should it not be close to 100% as mentioned in the FAQ Q:1??
Here is the screenshot of the profile log
Housewifery asked 16/11, 2011 at 6:52
1
Solved
I have a model code on which kcachegrind/callgrind reports strange results. It is kind of dispatcher function. The dispatcher is called from 4 places; each call says, which actual do_J function to ...
Jibe asked 20/9, 2011 at 16:54
2
I currently am developing a shared lilbrary for loading into PostgreSQL (as C-Language functions, see here). Now I would like to profile the function in this library without recompiling PostgreSQL ...
Se asked 25/7, 2011 at 5:31
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