Perfomance tuning

ruby-talk
1

Hi,
I have an application that takes a little to long to execute. I would
like to know where I could gain most.

Whenever a metod is called, I would like to store the execution time and
number of executions. Then, at the end of the applications execution,
print it out. Something like:

Object1 =>
   method1 => called 10 times, 30 milliseconds total time
   method2 => called 1 times, 5 milliseconds total time
Object2 =>
   method1 => called 1 times, 2 milliseconds total time
   method2 => called 30 times, 500 milliseconds total time
...

How would I do this?
Regards
Emil

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Posted via http://www.ruby-forum.com/.

2

The best way is ruby-prof (http://ruby-prof.rubyforge.org). It will
generate ascii or html formatted output showing the time spent in
methods. See O'Reilly Media - Technology and Business Training
for links to a series of 3 blog posts describing its use.

Alex

···

On 3/13/07, Emil Sandin <esandin@gmail.com> wrote:

Hi,
I have an application that takes a little to long to execute. I would
like to know where I could gain most.

3

Emil Sandin wrote:

Hi,
I have an application that takes a little to long to execute. I would
like to know where I could gain most.

Whenever a metod is called, I would like to store the execution time and
number of executions. Then, at the end of the applications execution,
print it out. Something like:

Object1 =>
   method1 => called 10 times, 30 milliseconds total time
   method2 => called 1 times, 5 milliseconds total time
Object2 =>
   method1 => called 1 times, 2 milliseconds total time
   method2 => called 30 times, 500 milliseconds total time
...

How would I do this?

Investigate 'profile' in the standard library (http://www.rubycentral.com/book/trouble.html\) or ruby-prof (http://ruby-prof.rubyforge.org/\). Both do what you want, but the latter is more comprehensive.

···

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Alex

4

Thank you for your quick replies, I will look into this at once.

/Emil

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Posted via http://www.ruby-forum.com/.