Devel::NYTProf

Devel::NYTProf Chia-liang Kao clkao@clkao.org Shibuya.pm#11

自己介紹

高嘉良

台湾人

日本語

日本語不會

Perl 黑客

Hate  

 

“Always proﬁle before optimize”

Devel::DProf

% perl -d:DProf foo.pl % dprofpp

% dprofpp Total Elapsed Time = 2.563600 Seconds User+System Time = 0.703600 Seconds Exclusive Times %Time ExclSec CumulS #Calls sec/call Csec/c Name 6.96 0.049 0.067 15 0.0033 0.0045 Prophet::Replica::sqlite::BEGIN 6.82 0.048 0.049 41 0.0012 0.0012 Mouse::Meta::Method::Constructor:: generate_constructor_method_inline 5.40 0.038 0.038 464 0.0001 0.0001 Params::Validate::_validate 4.97 0.035 0.030 86 0.0004 0.0003 Mouse::Meta::Method::Accessor::gen erate_accessor_method_inline 4.69 0.033 0.043 555 0.0001 0.0001 Prophet::Replica::sqlite::get_reco rd_props 4.12 0.029 0.029 166 0.0002 0.0002 DBI::st::fetchall_arrayref 3.84 0.027 0.035 412 0.0001 0.0001 DateTime::Locale::_registered_id 3.55 0.025 0.077 90 0.0003 0.0009 Mouse::Meta::Attribute::create 2.84 0.020 0.020 6 0.0033 0.0033 Mouse::Meta::Attribute::BEGIN 2.84 0.020 0.154 1 0.0199 0.1537 App::SD::Util::BEGIN 2.56 0.018 0.018 501 0.0000 0.0000 Scalar::Util::blessed 2.27 0.016 0.055 449 0.0000 0.0001 DateTime::Locale::_register 1.42 0.010 0.087 4454 0.0000 0.0000 Mouse::Meta::Method::Accessor::__A NON__ 1.42 0.010 0.010 1 0.0100 0.0100 Config::TIEHASH 1.42 0.010 0.000 41 0.0002 0.0000 Mouse::Meta::Method::Constructor:: _generate_processattrs

Sub Level

% perl -d:DProf foo.pl

% perl -d:DProf foo.pl Segmentation fault.

Devel::NYTProf by Tim Bunce

DBI 作者

Line Level

block Level

使用方法

% perl -d:NYTProf foo.pl % nytprofhtml

Line Level

Even works with eval!

Use it!

Last Weekend

OSDC.TW 台北

小籠包

Rasmus showed nice PHP  calltree

I want  that for  Perl!

Calltree?

So here you go

(Never make  a Perl  hacker  jealous)

kcachegrind

% perl -d:NYTProf foo.pl % nytprofcg % kcachegrind nytprof

NYTProf is  more than  not  crashing

DB::enable_proﬁle(); ..... DB::disable_proﬁle();

Per-request Profiling  for Jifty

Many more  goodies  from  NYTProf

cpan Devel::NYTProf http://code.google.com/p/perl-devel-nytprof/

謝謝!

Devel::NYTProf

by clkao on Apr 22, 2009

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