[rt-users] RT Performance after Perl modules upgrade on CentOS

Edward Kovarski edward.kovarski at groupkae.com
Tue Nov 20 19:54:50 EST 2007


Problem resolved the hard way... I've renamed /usr/lib/perl5 and then  
forced a reinstall of the perl packaged and followed it via a make  
fixdeps. System is back to its normal speed... This will teach me to  
do a blind 'upgrade' in cpan on all modules.

On 20-Nov-07, at 3:30 PM, Edward Kovarski wrote:

>
> Has anybody notices a dramatic performance decrease with any recent  
> perl cpan upgrades? I've recently upgraded the CPAN modules and RT  
> has taken a significant hit - performance easily dropped by 70-80%.
>
> I haven't had a chance to look fully into it - it isn't heavily used  
> currently - so I figured I'd ask if someone has perhaps run into  
> it...  OS is CentOS v4.5 and the logs are peppered with the  
> following warnings,
>
> Use of uninitialized value in substitution (s///) at /usr/local/rt3/ 
> lib/RT/Interface/Web.pm line 632.
> Use of uninitialized value in pattern match (m//) at /usr/local/rt3/ 
> lib/RT/I18N.pm line 395.
>
> These all correspond with the day that performance dropped so I am  
> looking at downgrading Encode and a few other modules,
>
> Here are my current perl modules,
> Perl v5.8.5 under linux
>  Apache::Session v1.84;
>  Apache::Session::Generate::MD5 v2.1;
>  Apache::Session::Lock::MySQL v1.00;
>  Apache::Session::MySQL v1.01;
>  Apache::Session::Serialize::Storable v1.01;
>  Apache::Session::Store::DBI v1.02;
>  Apache::Session::Store::MySQL v1.04;
>  AutoLoader v5.63;
>  base v2.12;
>  bytes v1.01;
>  Cache::Simple::TimedExpiry v0.27;
>  capitalization v0.03;
>  Carp v1.03;
>  CGI v3.29;
>  CGI::Cookie v1.28;
>  CGI::Fast v1.07;
>  CGI::Util v1.5;
>  Class::Container v0.12;
>  Class::Data::Inheritable v0.06;
>  Class::ReturnValue v0.55;
>  Clone v0.28;
>  constant v1.12;
>  Convert::ASN1 v0.21;
>  Cwd v3.25;
>  Data::Dumper v2.121;
>  Date::Format v2.22;
>  Date::Parse v2.27;
>  DBD::mysql v4.005;
>  DBI v1.601;
>  DBIx::SearchBuilder v1.49;
>  DBIx::SearchBuilder::Union v0;
>  DBIx::SearchBuilder::Unique v0.01;
>  Devel::StackTrace v1.15;
>  Devel::StackTraceFrame v0.6;
>  Devel::Symdump v2.08;
>  Digest::base v1.00;
>  Digest::MD5 v2.36;
>  DynaLoader v1.05;
>  Encode v2.23;
>  Encode::Alias v2.07;
>  Encode::Config v2.04;
>  Encode::Encoding v2.05;
>  Encode::Guess v2.02;
>  Encode::Unicode v2.05;
>  Errno v1.1;
>  Exception::Class v1.23;
>  Exception::Class::Base v1.2;
>  Exporter v5.58;
>  Exporter::Heavy v5.58;
>  FCGI v0.67;
>  Fcntl v1.05;
>  File::Basename v2.73;
>  File::Glob v1.03;
>  File::Path v2.03;
>  File::Spec v3.25;
>  File::Spec::Unix v1.5;
>  File::Temp v0.18;
>  FileHandle v2.01;
>  HTML::Element v3.23;
>  HTML::Entities v1.35;
>  HTML::Formatter v2.04;
>  HTML::FormatText v2.04;
>  HTML::Mason v1.37;
>  HTML::Mason::CGIHandler v1.00;
>  HTML::Mason::Exception v1.1;
>  HTML::Mason::Exception::Abort v1.1;
>  HTML::Mason::Exception::Compilation v1.1;
>  HTML::Mason::Exception::Compilation::IncompatibleCompiler v1.1;
>  HTML::Mason::Exception::Compiler v1.1;
>  HTML::Mason::Exception::Decline v1.1;
>  HTML::Mason::Exception::Params v1.1;
>  HTML::Mason::Exception::Syntax v1.1;
>  HTML::Mason::Exception::System v1.1;
>  HTML::Mason::Exception::TopLevelNotFound v1.1;
>  HTML::Mason::Exception::VirtualMethod v1.1;
>  HTML::Mason::Exceptions v1.43;
>  HTML::Parser v3.56;
>  HTML::Scrubber v0.08;
>  HTML::Tagset v3.10;
>  HTML::TreeBuilder v3.23;
>  HTTP::Date v1.47;
>  I18N::LangTags v0.35;
>  I18N::LangTags::Detect v1.03;
>  integer v1.00;
>  IO v1.23;
>  IO::File v1.14;
>  IO::Handle v1.27;
>  IO::InnerFile v2.110;
>  IO::Lines v2.110;
>  IO::ScalarArray v2.110;
>  IO::Seekable v1.1;
>  IO::Select v1.17;
>  IO::Socket v1.30;
>  IO::Socket::INET v1.31;
>  IO::Socket::UNIX v1.23;
>  IO::WrapTie v2.110;
>  IPC::Open2 v1.01;
>  IPC::Open3 v1.0106;
>  lib v0.5565;
>  List::Util v1.19;
>  Locale::Maketext v1.12;
>  Locale::Maketext::Fuzzy v0.10;
>  Locale::Maketext::Lexicon v0.64;
>  Locale::Maketext::Lexicon::Gettext v0.15;
>  Log::Dispatch v2.20;
>  Log::Dispatch::Base v1.09;
>  Log::Dispatch::File v1.22;
>  Log::Dispatch::Output v1.26;
>  Log::Dispatch::Screen v1.17;
>  Log::Dispatch::Syslog v1.18;
>  Mail::Address v1.77;
>  Mail::Field v1.77;
>  Mail::Field::AddrList v1.77;
>  Mail::Field::Date v1.77;
>  Mail::Header v1.77;
>  Mail::Internet v1.77;
>  MIME::Base64 v3.07;
>  MIME::Body v5.425;
>  MIME::Decoder v5.425;
>  MIME::Decoder::NBit v5.425;
>  MIME::Decoder::QuotedPrint v5.425;
>  MIME::Entity v5.425;
>  MIME::Field::ContDisp v5.425;
>  MIME::Field::ConTraEnc v5.425;
>  MIME::Field::ContType v5.425;
>  MIME::Field::ParamVal v5.425;
>  MIME::Head v5.425;
>  MIME::Parser v5.425;
>  MIME::QuotedPrint v3.07;
>  MIME::Tools v5.425;
>  MIME::Words v5.425;
>  Module::Versions::Report v1.03;
>  Net::LDAP v0.34;
>  Net::LDAP::ASN v0.04;
>  Net::LDAP::Bind v1.02;
>  Net::LDAP::Constant v0.04;
>  Net::LDAP::Entry v0.23;
>  Net::LDAP::Filter v0.15;
>  Net::LDAP::Message v1.09;
>  Net::LDAP::Search v0.11;
>  Net::LDAP::Util v0.11;
>  overload v1.01;
>  Params::Validate v0.89;
>  PerlIO v1.03;
>  PerlIO::scalar v0.02;
>  POSIX v1.08;
>  re v0.04;
>  Regexp::Common v2.120;
>  Regexp::Common::delimited v2.104;
>  RT v3.6.5;
>  RT::Interface::Email v2;
>  Scalar::Util v1.19;
>  SelectSaver v1.00;
>  Socket v1.77;
>  Storable v2.17;
>  strict v1.03;
>  Symbol v1.05;
>  Sys::Syslog v0.23;
>  Text::Autoformat v1.13;
>  Text::Quoted v2.03;
>  Text::Reform v1.11;
>  Text::Tabs v2007.1117;
>  Text::Template v1.44;
>  Text::Wrapper v1.01;
>  Tie::Hash v1.01;
>  Time::HiRes v1.9708;
>  Time::JulianDay v2003.1125;
>  Time::Local v1.18;
>  Time::ParseDate v2006.0814;
>  Time::Timezone v2006.0814;
>  Time::Zone v2.22;
>  Tree::Simple v1.18;
>  UNIVERSAL v1.01;
>  UNIVERSAL::require v0.11;
>  URI v1.35;
>  URI::Escape v3.28;
>  URI::URL v5.03;
>  URI::WithBase v2.19;
>  utf8 v1.04;
>  vars v1.01;
>  warnings v1.03;
>  warnings::register v1.00;
>  XSLoader v0.08;
>
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