| Topic: |
DEVELOP > c-Plus-Plus |
| User: |
"" |
| Date: |
01 Jan 2008 06:11:18 AM |
| Object: |
Counting function calls |
Hello,
does anybody know a "tool" or an easy method to measure the count of
function/member function calls? I just would like some kind of
statistic or raw numbers, how often a specific function is called.
Best regards,
T. Schilling
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| User: "red floyd" |
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| Title: Re: Counting function calls |
01 Jan 2008 12:57:15 PM |
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wrote:
Hello,
does anybody know a "tool" or an easy method to measure the count of
function/member function calls? I just would like some kind of
statistic or raw numbers, how often a specific function is called.
It's called a "Profiler". It's toolset dependent.
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| User: "=?UTF-8?B?RXJpayBXaWtzdHLDtm0=?=" |
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| Title: Re: Counting function calls |
01 Jan 2008 07:23:18 AM |
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On 2008-01-01 13:11, wrote:
Hello,
does anybody know a "tool" or an easy method to measure the count of
function/member function calls? I just would like some kind of
statistic or raw numbers, how often a specific function is called.
Seems to me like something a profiler should should be able to do.
--
Erik Wikström
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| User: "=?utf-8?Q?David_C=C3=B4me?=" |
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| Title: Re: Counting function calls |
01 Jan 2008 06:16:28 AM |
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On Tue, 01 Jan 2008 13:11:18 +0100, <thorsten.schilling@gmail.com> wrote:
Hello,
does anybody know a "tool" or an easy method to measure the count of
function/member function calls? I just would like some kind of
statistic or raw numbers, how often a specific function is called.
Best regards,
T. Schilling
static variable into the function with incrementation like this:
#include <iostream>
void foo(void)
{
static int num;
std::cout<<num<<std::endl;
num++;
}
int main(void)
{
foo();
foo();
}
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| User: "" |
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| Title: Re: Counting function calls |
01 Jan 2008 06:35:27 AM |
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David C=F4me schrieb:
On Tue, 01 Jan 2008 13:11:18 +0100, <thorsten.schilling@gmail.com> wrote:
Hello,
does anybody know a "tool" or an easy method to measure the count of
function/member function calls? I just would like some kind of
statistic or raw numbers, how often a specific function is called.
Best regards,
T. Schilling
static variable into the function with incrementation like this:
#include <iostream>
void foo(void)
{
static int num;
std::cout<<num<<std::endl;
num++;
}
int main(void)
{
foo();
foo();
}
Hello,
yes, that is the obvious solution. But in a program with roughly
approximated 2000 functions it would be extremly intensive to change
every function to that style, or I would say impossible depicted in
hours of work. I am looking more for some debugger function, e.g. in
gdb, which tells me the count of the calls the functions recieved
after a successfull program run.
Best regards,
T. Schilling
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| User: "Marc" |
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| Title: Re: Counting function calls |
01 Jan 2008 08:21:27 AM |
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yes, that is the obvious solution. But in a program with roughly
approximated 2000 functions it would be extremly intensive to change
every function to that style, or I would say impossible depicted in
hours of work. I am looking more for some debugger function, e.g. in
gdb, which tells me the count of the calls the functions recieved
after a successfull program run.
What you need is a profile of your program. If you are using g++, compile
and link it with flag -pg enabled (not sure if this also implies -g). Then,
run your program as usual. When you finish, you will notice a new file
named gmon.out. This contains all the information the profiler was able to
collect. You can see this information with gprof NAME_OF_YOUR_PROGRAM, or
using a graphical viewer, like kprof.
You can see how many times every function was called, how many time it took,
and some other useful stuff.
Marc
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