12-07-2010
So I found the script that was causing the poor performance, but other symptoms have surfaced as well. Sometimes a simple 'ls' on a directory with 30 files will cause the disk to spin for 45 or so seconds while the box is under no other I/O load. Again, no error messages are apparent, and SMART data looks fine.
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LEARN ABOUT DEBIAN
pminst
PMINST(1p) User Contributed Perl Documentation PMINST(1p)
NAME
pminst - find modules whose names match this pattern
SYNOPSIS
pminst [-s] [-l] [pattern]
DESCRIPTION
Without argumnets, show the names of all installed modules. Given a pattern, show all module names that match it. The -l flag will show
the full pathname. The -s flag will separate the base directory from @INC from the module portion itself.
EXAMPLES
$ pminst
(lists all installed modules)
$ pminst Carp
CGI::Carp
Carp
$ pminst ^IO::
IO::Socket::INET
IO::Socket::UNIX
IO::Select
IO::Socket
IO::Poll
IO::Handle
IO::Pipe
IO::Seekable
IO::Dir
IO::File
$ pminst '(?i)io'
IO::Socket::INET
IO::Socket::UNIX
IO::Select
IO::Socket
IO::Poll
IO::Handle
IO::Pipe
IO::Seekable
IO::Dir
IO::File
IO
Pod::Functions
The -s flag provides output with the directory separated
by a space:
$ pminst -s | sort +1
(lists all modules, sorted by name, but with where they
came from)
$ oldperl -S pminst -s IO
/usr/lib/perl5/i386-linux/5.00404 IO::File
/usr/lib/perl5/i386-linux/5.00404 IO::Handle
/usr/lib/perl5/i386-linux/5.00404 IO::Pipe
/usr/lib/perl5/i386-linux/5.00404 IO::Seekable
/usr/lib/perl5/i386-linux/5.00404 IO::Select
/usr/lib/perl5/i386-linux/5.00404 IO::Socket
/usr/lib/perl5/i386-linux/5.00404 IO
/usr/lib/perl5/site_perl LWP::IO
/usr/lib/perl5/site_perl LWP::TkIO
/usr/lib/perl5/site_perl Tk::HTML::IO
/usr/lib/perl5/site_perl Tk::IO
/usr/lib/perl5/site_perl IO::Stringy
/usr/lib/perl5/site_perl IO::Wrap
/usr/lib/perl5/site_perl IO::ScalarArray
/usr/lib/perl5/site_perl IO::Scalar
/usr/lib/perl5/site_perl IO::Lines
/usr/lib/perl5/site_perl IO::WrapTie
/usr/lib/perl5/site_perl IO::AtomicFile
The -l flag gives full paths:
$ filsperl -S pminst -l Thread
/usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Queue.pm
/usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Semaphore.pm
/usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Signal.pm
/usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Specific.pm
/usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread.pm
AUTHORS and COPYRIGHTS
Copyright (C) 1999 Tom Christiansen.
Copyright (C) 2006-2008 Mark Leighton Fisher.
This is free software; you can redistribute it and/or modify it under the terms of either: (a) the GNU General Public License as published
by the Free Software Foundation; either version 1, or (at your option) any later version, or (b) the Perl "Artistic License". (This is the
Perl 5 licensing scheme.)
Please note this is a change from the original pmtools-1.00 (still available on CPAN), as pmtools-1.00 were licensed only under the Perl
"Artistic License".
perl v5.10.1 2010-02-22 PMINST(1p)