Profiling using DProf

[howa]

I am using the command :

perl -dProf index.cgi


Using "dprofpp", it give me...


Total Elapsed Time = 0.270455 Seconds
User+System Time = 0.120455 Seconds
Exclusive Times
%Time ExclSec CumulS #Calls sec/call Csec/c Name
41.5 0.050 0.089 7 0.0071 0.0127 MyModule::BEGI
N
16.6 0.020 0.020 48 0.0004 0.0004 Exporter::import
8.30 0.010 0.010 4 0.0025 0.0025 utf8::SWASHNEW
8.30 0.010 0.010 4 0.0025 0.0025 Data:umper::BEGIN
8.30 0.010 0.010 2 0.0050 0.0050 lib::BEGIN
8.30 0.010 0.010 5 0.0020 0.0020 IO::Seekable::BEGIN
8.30 0.010 0.010 159 0.0001 0.0001 XML::Twig::Elt::set_gi
7.47 0.009 0.008 89 0.0001 0.0001 XML::Twig::_twig_end
0.00 0.000 0.000 1 0.0000 0.0000 File::Glob::GLOB_BRACE
0.00 0.000 0.000 1 0.0000 0.0000 File::Glob::GLOB_NOMAGIC
0.00 0.000 0.000 1 0.0000 0.0000 File::Glob::GLOB_QUOTE
0.00 0.000 0.000 1 0.0000 0.0000 File::Glob::GLOB_TILDE
0.00 0.000 0.000 1 0.0000 0.0000
File::Glob::GLOB_ALPHASORT
0.00 0.000 0.000 1 0.0000 0.0000
Exporter::Heavy::heavy_export_to_l
evel
0.00 0.000 0.000 1 0.0000 0.0000 LWP::Simple::_get



However, what is "MyModule::BEGIN"? Can I see more detail how to time
was spent?

Thanks.

 

[xhoster]

I am using the command :

perl -dProf index.cgi

Using "dprofpp", it give me...

Total Elapsed Time = 0.270455 Seconds
User+System Time = 0.120455 Seconds
Exclusive Times
%Time ExclSec CumulS #Calls sec/call Csec/c Name
41.5 0.050 0.089 7 0.0071 0.0127 MyModule::BEGIN

However, what is "MyModule::BEGIN"?

The union of all BEGIN blocks encountered in package MyModule.

Can I see more detail how to time
was spent?

You can look at the options for dprofpp, like -S. And in probably -r, as
more than half the time in your program seems to be off the CPU.

There is also SmallProf, and some newer profiling modules I haven't looked
into yet myself.

But don't underestimate the usefulness of just looking at the code and
using your judgment about what parts are likely to be slow.

Xho

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[brian d foy]

I am using the command :

perl -dProf index.cgi

DProf is rather long in the tooth. The new hotness is Devel::NYTProf.
It has much nicer (and layered) reports that record at a much finer
granularity.