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#!/usr/bin/perl

eval 'exec /usr/bin/perl  -S $0 ${1+"$@"}'
    if 0; # not running under some shell

use strict;

my $VERSION = sprintf("1.%06d", q$Revision$ =~ /(\d+)/o);

use Data::Dumper;
use DBI::ProfileData;
use Getopt::Long;

# default options
my $number         = 10;
my $sort           = 'total';
my $filename       = 'dbi.prof';
my $reverse        = 0;
my $case_sensitive = 0;
my (%match, %exclude);

# get options from command line
GetOptions(
           'version'        => sub { die "dbiprof $VERSION\n" },
           'help'           => sub { exit usage() },
           'number=i'       => \$number,
           'sort=s'         => \$sort,
           'dumpnodes!'     => \my $dumpnodes,
           'reverse'        => \$reverse,
           'match=s'        => \%match,
           'exclude=s'      => \%exclude,
           'case-sensitive' => \$case_sensitive,
           'delete!'        => \my $opt_delete,
) or exit usage();

sub usage {
    print <<EOS;
dbiprof [options] [files]

Reads and merges DBI profile data from files and prints a summary.

files: defaults to $filename

options:

    -number=N        show top N, defaults to $number
    -sort=S          sort by S, defaults to $sort
    -reverse         reverse the sort
    -match=K=V       for filtering, see docs
    -exclude=K=V     for filtering, see docs
    -case_sensitive  for -match and -exclude
    -delete          rename files before reading then delete afterwards
    -version         print version number and exit
    -help            print this help

EOS
    return 1;
}

# list of files defaults to dbi.prof
my @files = @ARGV ? @ARGV : ('dbi.prof');


# instantiate ProfileData object
my $prof = eval {
    DBI::ProfileData->new(
        Files => \@files,
        DeleteFiles => $opt_delete,
    );
};
die "Unable to load profile data: $@\n" if $@;

if (%match) { # handle matches
    while (my ($key, $val) = each %match) {
        if ($val =~ m!^/(.+)/$!) {
            $val = $case_sensitive ? qr/$1/ : qr/$1/i;
        } 
        $prof->match($key, $val, case_sensitive => $case_sensitive);
    }
}

if (%exclude) { # handle excludes
    while (my ($key, $val) = each %exclude) {
        if ($val =~ m!^/(.+)/$!) {
            $val = $case_sensitive ? qr/$1/ : qr/$1/i;
        } 
        $prof->exclude($key, $val, case_sensitive => $case_sensitive);
    }
}

# sort the data
$prof->sort(field => $sort, reverse => $reverse);

# all done, print it out
if ($dumpnodes) {
    $Data::Dumper::Indent    = 1;
    $Data::Dumper::Terse     = 1;
    $Data::Dumper::Useqq     = 1;
    $Data::Dumper::Deparse   = 0;
    print Dumper($prof->nodes);
}
else {
    print $prof->report(number => $number);
}
exit 0;

__END__

=head1 NAME

dbiprof - command-line client for DBI::ProfileData

=head1 SYNOPSIS

See a report of the ten queries with the longest total runtime in the
profile dump file F<prof1.out>:

 dbiprof prof1.out

See the top 10 most frequently run queries in the profile file
F<dbi.prof> (the default):

  dbiprof --sort count

See the same report with 15 entries:

  dbiprof --sort count --number 15

=head1 DESCRIPTION

This tool is a command-line client for the DBI::ProfileData.  It
allows you to analyze the profile data file produced by
DBI::ProfileDumper and produce various useful reports.

=head1 OPTIONS

This program accepts the following options:

=over 4

=item --number N

Produce this many items in the report.  Defaults to 10.  If set to
"all" then all results are shown.

=item --sort field

Sort results by the given field. Sorting by multiple fields isn't currently
supported (patches welcome).  The available sort fields are:

=over 4

=item total

Sorts by total time run time across all runs.  This is the default
sort.

=item longest

Sorts by the longest single run.

=item count

Sorts by total number of runs.

=item first

Sorts by the time taken in the first run.

=item shortest

Sorts by the shortest single run.

=item key1

Sorts by the value of the first element in the Path, which should be numeric.
You can also sort by C<key2> and C<key3>.

=back

=item --reverse

Reverses the selected sort.  For example, to see a report of the
shortest overall time:

  dbiprof --sort total --reverse

=item --match keyN=value

Consider only items where the specified key matches the given value.
Keys are numbered from 1.  For example, let's say you used a
DBI::Profile Path of:

  [ DBIprofile_Statement, DBIprofile_Methodname ]

And called dbiprof as in:

  dbiprof --match key2=execute

Your report would only show execute queries, leaving out prepares,
fetches, etc.

If the value given starts and ends with slashes (C</>) then it will be
treated as a regular expression.  For example, to only include SELECT
queries where key1 is the statement:

  dbiprof --match key1=/^SELECT/

By default the match expression is matched case-insensitively, but
this can be changed with the --case-sensitive option.

=item --exclude keyN=value

Remove items for where the specified key matches the given value.  For
example, to exclude all prepare entries where key2 is the method name:

  dbiprof --exclude key2=prepare

Like C<--match>, If the value given starts and ends with slashes
(C</>) then it will be treated as a regular expression.  For example,
to exclude UPDATE queries where key1 is the statement:

  dbiprof --match key1=/^UPDATE/

By default the exclude expression is matched case-insensitively, but
this can be changed with the --case-sensitive option.

=item --case-sensitive

Using this option causes --match and --exclude to work
case-sensitively.  Defaults to off.

=item --delete

Sets the C<DeleteFiles> option to L<DBI::ProfileData> which causes the
files to be deleted after reading. See L<DBI::ProfileData> for more details.

=item --dumpnodes

Print the list of nodes in the form of a perl data structure.
Use the C<-sort> option if you want the list sorted.

=item --version

Print the dbiprof version number and exit.

=back

=head1 AUTHOR

Sam Tregar <sam@tregar.com>

=head1 COPYRIGHT AND LICENSE

Copyright (C) 2002 Sam Tregar

This program is free software; you can redistribute it and/or modify
it under the same terms as Perl 5 itself.

=head1 SEE ALSO

L<DBI::ProfileDumper|DBI::ProfileDumper>,
L<DBI::Profile|DBI::Profile>, L<DBI|DBI>.

=cut


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The Newark Star-Ledger

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British based Oyster Yachts makes some of the finest yachts in the world. Like every other company, they had to find a way to feed the never-ending video demands of social media – sites like Instagram and TikTok. We trained the Oyster staff to tell their own stories, using only iPhones.

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We were approached by SEPA, the Scottish Environmental Protection Agency because they had to continually find a way to ‘feed the media beast’. The result was that SEPA was able to tell their own stories, whenever they wanted, and at almost no additional cost.

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Michael on Media

Michael Rosenblum has been writing about the media since 1988. His work and ideas have appeared in The Guardian, The Huffington Post, Ilkeston Life and many other publications.

He has been blogging regularly for the past 35 years on this subject. Having taught media studies at Columbia University, NYU and now the University of Oxford, he is considered an expert on this subject.

Continue reading this post or look back at previous posts.

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