Linux Performance Optimization Tools | PDF | Transmission Control Protocol | Device DriverThe document provides tools and techniques for profiling and debugging Linux systems and Ruby applications. It discusses the lsof tool for listing open files, strace for tracing system calls…
[DBIC]Debug and Profile your SQL - Vox
use DBIx::Class::Storage::Statistics module's hook. package Your::DBIC::Profiler; use strict; use warnings; use base 'DBIx::Class::Storage::Statistics'; use Time::HiRes qw( tv_interval gettimeofday ); sub new { my ($class, $params) = @_; bless $params, $class; } sub query_start { my $self = shift; my $sql = shift; my $params = @_; my $bind = $params ? join(', ', @{$params})
Visualizing your DBIC schema
If you want a somewhat pretty picture of your DBIC schema (with relationships drawn, of course), install GraphViz, SQL::Translator, and DBICx::Deploy from the CPAN, and then run: $ dbicdeploy -Ilib MyApp::Schema ~/graphs GraphViz ~/graphs will then contain a .sql file that is actually a png of your schema. Rename it and see your schema in your favorite png viewing application. Oh yeah, the post ne
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