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|
#!/usr/bin/perl -w
# Movable Type (r) Open Source (C) 2001-2012 Six Apart, Ltd.
# This program is distributed under the terms of the
# GNU General Public License, version 2.
#
# $Id$
package MT::Tool::ReportSlowRequest;
use strict;
use lib "./lib";
use base qw( MT::Tool );
use List::Util qw( min );
use Time::HiRes qw( time );
use MT;
use MT::Util::LogProcessor;
use Data::Dumper;
my ($arg_day, $arg_logdir, $arg_sample, $arg_slow, $arg_debug, $arg_dump);
sub help {
return q{
--logdir <dir> Look for logs in directory <dir>. By default, logs
in the current directory are analyzed.
--sample <num> ?
--slow <secs> Number of seconds after which a request is listed
as one of the slowest. By default, requests over 2
seconds are considered the slowest.
--day <name> The name of the day to examine; either 'today',
'yesterday', or a date in the format YYYY-MM-DD.
--debug Enable debugging output.
--dump ?
};
}
sub usage {
}
sub options {
return (
'logdir=s' => \$arg_logdir,
'sample=i' => \$arg_sample,
'slow=i' => \$arg_slow,
'day=s' => \$arg_day,
'debug' => \$arg_debug,
'dump' => \$arg_dump,
);
}
sub main {
my $class = shift;
my ($verbose) = $class->SUPER::main(@_);
$arg_slow ||= 2;
my $proc = MT::Util::LogProcessor->new(
{
debug => $arg_debug,
logdir => $arg_logdir || '.',
sample => $arg_sample,
day => $arg_day || 'yesterday',
file_pattern => 'pl-\d{8}.log',
}
);
my %stash = ( today => $proc->day );
my ( $total_records, $elapsed ) = $proc->process_log_files(
sub {
my ($rec) = @_;
my $secs = int $rec->{time_total};
my $bucket = $secs > 10 ? 10 : $secs;
$stash{by_seconds}[$bucket]++;
$stash{total_requests}++;
if ( $secs > $arg_slow - 1 ) {
push @{ $stash{slow} }, $rec;
}
}
);
printf "Processed %d records in %.02f seconds; speed: %.02f recs/sec\n",
$total_records, $elapsed, $total_records / ( $elapsed || 1 )
if $arg_debug;
for my $bucket ( 0 .. $#{ $stash{by_seconds} } ) {
my $count = $stash{by_seconds}[$bucket] || 0;
$stash{restime_histogram}[$bucket] = {
count => $count,
range => $bucket == 10
? '10+ sec'
: $bucket . '-' . ( $bucket + 1 ) . 's',
percent => int( $count / $stash{total_requests} * 100 ) || 1,
};
}
$stash{slow} =
[ sort { $b->{time_total} <=> $a->{time_total} } @{ $stash{slow} || [] } ];
report( \%stash );
}
sub report {
my ($stash) = @_;
print "Response time histogram:\n";
for my $row ( @{ $stash->{restime_histogram} } ) {
printf "%s: %s (%s%%)\n", $row->{range}, $row->{count}, $row->{percent};
}
print "Slowest requests:\n";
for my $row ( @{ $stash->{slow} } ) {
printf "%s\n", $row->{url};
for my $key ( keys %$row ) {
next if $key !~ /^time_/;
my $secs = $row->{$key};
next
if $key eq 'time_mem_start'
|| $key eq 'time_mem_end'
|| $key eq 'time_total'
|| $secs < 0.01;
printf "%s: %s\n", $key, $secs;
}
}
}
__PACKAGE__->main() unless caller;
1;
|
