mysql_statistics.rb

# MySQL Statistics by Eric Lindvall <[email protected]>
# MySQLTuner integration by Andre Lewis <@[email protected]>


class MysqlQueryStatistics < Scout::Plugin
  ENTRIES = %w(Com_insert Com_select Com_update Com_delete)

  OPTIONS=<<-EOS
  user:
    name: MySQL username
    notes: Specify the username to connect with
    default: root
  password:
    name: MySQL password
    notes: Specify the password to connect with
    attributes: password
  host:
    name: MySQL host
    notes: Specify something other than 'localhost' to connect via TCP
    default: localhost
  port:
    name: MySQL port
    notes: Specify the port to connect to MySQL with (if nonstandard)
  socket:
    name: MySQL socket
    notes: Specify the location of the MySQL socket
  tuner_days:
    name: MySQLTuner Summary Frequency
    notes: number of days between summary reports by MySQLTuner.
    default: 7
    attributes: advanced
  EOS

  needs "mysql"

  def build_report
    # get_option returns nil if the option value is blank
    user     = get_option(:user) || 'root'
    password = get_option(:password)
    host     = get_option(:host)
    port     = get_option(:port)
    socket   = get_option(:socket)
    days     = get_option(:tuner_days)
    
    mysql = Mysql.connect(host, user, password, nil, (port.nil? ? nil : port.to_i), socket)
    result = mysql.query('SHOW /*!50002 GLOBAL */ STATUS')
    rows = []
    total = 0
    # process each row. Sum the values for 'total''
    result.each do |row|
      rows << row if ENTRIES.include?(row.first)
      total += row.last.to_i if row.first[0..3] == 'Com_'
    end
    result.free

    # report each one, then the total (all via counter)
    rows.each do |row|
      name = row.first[/_(.*)$/, 1]
      counter(name, row.last.to_i, :per=>:second)
    end
    counter(:total, total, :per=>:second)

    return if days == nil # blank (or nil) means don't run tuner
    days=days.to_i
    last_run = memory(:tuner_last_run)
    # run tuner if it's never run before, or if it's been X days since last tuner run
    if last_run == nil || (last_run.is_a?(Time) && Time.now - days*86400 >= last_run)

      # give an error message if any of the needed command lines can't be found
      checks = [`which perl`, `which mysql`, `which mysqladmin`]
      if checks.any?{|c|c.strip ==''} 
        error_text=<<-END_ERROR_TEXT
        MySQLTuner needs perl, mysql, and mysqladmin to run. One or more of these are not available:
        `which perl` output:#{checks[0]}
        `which mysql` output:#{checks[1]}
        `which mysqladmin` output:#{checks[2]}
        ----
        Your $PATH in this environment is:
        #{ENV['PATH'].gsub(":","\n")}

        To solve this issue:
          1) ensure that perl, mysql, and mysqladmin are installed;
          2) ensure that all three executables are available in your PATH.

        Check your PATH carefully. PATH is often different when run from a cron job.
        END_ERROR_TEXT
        error("Can not run MySQLTuner", error_text)
      else
        tuner_opts = ["--user=#{user}"]
        tuner_opts.push("--pass='#{password}'") if password
        tuner_opts.push("--host='#{host}'") if host && host != 'localhost'
        tuner_opts.push("--port='#{socket}'") if port
        tuner_opts.push("--socket='#{socket}'") if socket

        analysis = open("| perl -- - --nocolor #{tuner_opts.join(' ')} 2>&1", "r+") do |perl|
           perl.puts(TUNER_CODE)
           perl.close_write
           perl.read
        end

        #record tuner results in a summary
        summary( :command => "mysqltuner.pl", :output => "<pre style='font-size:smaller'>"+analysis+"</pre>" )
        remember(:tuner_last_run, Time.now)
      end
    else
      remember(:tuner_last_run, memory(:tuner_last_run))  
    end
  end

  private
  
  # Returns nil if an empty string
  def get_option(opt_name)
    val = option(opt_name)
    return (val.is_a?(String) and val.strip == '') ? nil : val
  end

  TUNER_CODE=<<END_OF_CODE
#!/usr/bin/perl -w
# mysqltuner.pl - Version 1.1.0
# High Performance MySQL Tuning Script
# Copyright (C) 2006-2009 Major Hayden - [email protected]
#
# For the latest updates, please visit http://mysqltuner.com/
# Subversion repository available at http://tools.assembla.com/svn/mysqltuner/
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# This project would not be possible without help from:
#   Matthew Montgomery     Paul Kehrer
#   Dave Burgess           Jonathan Hinds
#   Mike Jackson           Nils Breunese
#   Shawn Ashlee           Luuk Vosslamber
#   Ville Skytta           Trent Hornibrook
#   Jason Gill             Mark Imbriaco
#   Greg Eden              Aubin Galinotti
#   Giovanni Bechis        Bill Bradford
#   Ryan Novosielski       Michael Scheidell
#   Blair Christensen      Hans du Plooy
#   Victor Trac            Everett Barnes
#   Tom Krouper            Gary Barrueto
#   Simon Greenaway        Adam Stein
#
# Inspired by Matthew Montgomery's tuning-primer.sh script:
# http://forge.mysql.com/projects/view.php?id=44
#
use strict;
use warnings;
use diagnostics;
use Getopt::Long;

# Set up a few variables for use in the script
my $tunerversion = "1.0.1";
my (@adjvars, @generalrec);

# Set defaults
my %opt = (
		"nobad" => 0,
		"nogood" => 0,
		"noinfo" => 0,
		"nocolor" => 0,
		"forcemem" => 0,
		"forceswap" => 0,
		"host" => 0,
		"socket" => 0,
		"port" => 0,
		"user" => 0,
		"pass" => 0,
		"skipsize" => 0,
		"checkversion" => 0,
	);

# Gather the options from the command line
GetOptions(\\%opt,
		'nobad',
		'nogood',
		'noinfo',
		'nocolor',
		'forcemem=i',
		'forceswap=i',
		'host=s',
		'socket=s',
		'port=i',
		'user=s',
		'pass=s',
		'skipsize',
		'checkversion',
		'help',
	);

if (defined $opt{'help'} && $opt{'help'} == 1) { usage(); }

sub usage {
	# Shown with --help option passed
	print "\\n".
		"   MySQLTuner $tunerversion - MySQL High Performance Tuning Script\\n".
		"   Bug reports, feature requests, and downloads at http://mysqltuner.com/\\n".
		"   Maintained by Major Hayden (major\\@mhtx.net) - Licensed under GPL\\n".
		"\\n".
		"   Important Usage Guidelines:\\n".
		"      To run the script with the default options, run the script without arguments\\n".
		"      Allow MySQL server to run for at least 24-48 hours before trusting suggestions\\n".
		"      Some routines may require root level privileges (script will provide warnings)\\n".
		"      You must provide the remote server's total memory when connecting to other servers\\n".
		"\\n".
		"   Connection and Authentication\\n".
		"      --host <hostname>    Connect to a remote host to perform tests (default: localhost)\\n".
		"      --socket <socket>    Use a different socket for a local connection\\n".
		"      --port <port>        Port to use for connection (default: 3306)\\n".
		"      --user <username>    Username to use for authentication\\n".
		"      --pass <password>    Password to use for authentication\\n".
		"\\n".
		"   Performance and Reporting Options\\n".
		"      --skipsize           Don't enumerate tables and their types/sizes (default: on)\\n".
		"                             (Recommended for servers with many tables)\\n".
		"      --checkversion       Check for updates to MySQLTuner (default: don't check)\\n".
		"      --forcemem <size>    Amount of RAM installed in megabytes\\n".
		"      --forceswap <size>   Amount of swap memory configured in megabytes\\n".
		"\\n".
		"   Output Options:\\n".
		"      --nogood             Remove OK responses\\n".
		"      --nobad              Remove negative/suggestion responses\\n".
		"      --noinfo             Remove informational responses\\n".
		"      --nocolor            Don't print output in color\\n".
		"\\n";
	exit;
}

# Setting up the colors for the print styles
my $good = ($opt{nocolor} == 0)? "[\\e[0;32mOK\\e[0m]" : "[OK]" ;
my $bad = ($opt{nocolor} == 0)? "[\\e[0;31m!!\\e[0m]" : "[!!]" ;
my $info = ($opt{nocolor} == 0)? "[\\e[0;34m--\\e[0m]" : "[--]" ;

# Functions that handle the print styles
sub goodprint { print $good." ".$_[0] unless ($opt{nogood} == 1); }
sub infoprint { print $info." ".$_[0] unless ($opt{noinfo} == 1); }
sub badprint { print $bad." ".$_[0] unless ($opt{nobad} == 1); }
sub redwrap { return ($opt{nocolor} == 0)? "\\e[0;31m".$_[0]."\\e[0m" : $_[0] ; }
sub greenwrap { return ($opt{nocolor} == 0)? "\\e[0;32m".$_[0]."\\e[0m" : $_[0] ; }

# Calculates the parameter passed in bytes, and then rounds it to one decimal place
sub hr_bytes {
	my $num = shift;
	if ($num >= (1024**3)) { #GB
		return sprintf("%.1f",($num/(1024**3)))."G";
	} elsif ($num >= (1024**2)) { #MB
		return sprintf("%.1f",($num/(1024**2)))."M";
	} elsif ($num >= 1024) { #KB
		return sprintf("%.1f",($num/1024))."K";
	} else {
		return $num."B";
	}
}

# Calculates the parameter passed in bytes, and then rounds it to the nearest integer
sub hr_bytes_rnd {
	my $num = shift;
	if ($num >= (1024**3)) { #GB
		return int(($num/(1024**3)))."G";
	} elsif ($num >= (1024**2)) { #MB
		return int(($num/(1024**2)))."M";
	} elsif ($num >= 1024) { #KB
		return int(($num/1024))."K";
	} else {
		return $num."B";
	}
}

# Calculates the parameter passed to the nearest power of 1000, then rounds it to the nearest integer
sub hr_num {
	my $num = shift;
	if ($num >= (1000**3)) { # Billions
		return int(($num/(1000**3)))."B";
	} elsif ($num >= (1000**2)) { # Millions
		return int(($num/(1000**2)))."M";
	} elsif ($num >= 1000) { # Thousands
		return int(($num/1000))."K";
	} else {
		return $num;
	}
}

# Calculates uptime to display in a more attractive form
sub pretty_uptime {
	my $uptime = shift;
	my $seconds = $uptime % 60;
	my $minutes = int(($uptime % 3600) / 60);
	my $hours = int(($uptime % 86400) / (3600));
	my $days = int($uptime / (86400));
	my $uptimestring;
	if ($days > 0) {
		$uptimestring = "${days}d ${hours}h ${minutes}m ${seconds}s";
	} elsif ($hours > 0) {
		$uptimestring = "${hours}h ${minutes}m ${seconds}s";
	} elsif ($minutes > 0) {
		$uptimestring = "${minutes}m ${seconds}s";
	} else {
		$uptimestring = "${seconds}s";
	}
	return $uptimestring;
}

# Retrieves the memory installed on this machine
my ($physical_memory,$swap_memory,$duflags);
sub os_setup {
	sub memerror {
		badprint "Unable to determine total memory/swap; use '--forcemem' and '--forceswap'\\n";
		exit;
	}
	my $os = `uname`;
	$duflags = ($os =~ /Linux/) ? '-b' : '';
	if ($opt{'forcemem'} > 0) {
		$physical_memory = $opt{'forcemem'} * 1048576;
		infoprint "Assuming $opt{'forcemem'} MB of physical memory\\n";
		if ($opt{'forceswap'} > 0) {
			$swap_memory = $opt{'forceswap'} * 1048576;
			infoprint "Assuming $opt{'forceswap'} MB of swap space\\n";
		} else {
			$swap_memory = 0;
			badprint "Assuming 0 MB of swap space (use --forceswap to specify)\\n";
		}
	} else {
		if ($os =~ /Linux/) {
			$physical_memory = `free -b | grep Mem | awk '{print \\$2}'` or memerror;
			$swap_memory = `free -b | grep Swap | awk '{print \\$2}'` or memerror;
		} elsif ($os =~ /Darwin/) {
			$physical_memory = `sysctl -n hw.memsize` or memerror;
			$swap_memory = `sysctl -n vm.swapusage | awk '{print \\$3}' | sed 's/\\..*\\$//'` or memerror;
		} elsif ($os =~ /NetBSD|OpenBSD/) {
			$physical_memory = `sysctl -n hw.physmem` or memerror;
			if ($physical_memory < 0) {
				$physical_memory = `sysctl -n hw.physmem64` or memerror;
			}
			$swap_memory = `swapctl -l | grep '^/' | awk '{ s+= \\$2 } END { print s }'` or memerror;
		} elsif ($os =~ /BSD/) {
			$physical_memory = `sysctl -n hw.realmem`;
			$swap_memory = `swapinfo | grep '^/' | awk '{ s+= \\$2 } END { print s }'`;
		} elsif ($os =~ /SunOS/) {
			$physical_memory = `/usr/sbin/prtconf | grep Memory | cut -f 3 -d ' '` or memerror;
			chomp($physical_memory);
			$physical_memory = $physical_memory*1024*1024;
		}
	}
	chomp($physical_memory);
}

# Checks to see if a MySQL login is possible
my ($mysqllogin,$doremote,$remotestring);
sub mysql_setup {
	$doremote = 0;
	$remotestring = '';
	my $command = `which mysqladmin`;
	chomp($command);
	if (! -e $command) {
		badprint "Unable to find mysqladmin in your \\$PATH.  Is MySQL installed?\\n";
		exit;
	}
	# Are we being asked to connect via a socket?
	if ($opt{socket} ne 0) {
		$remotestring = " -S $opt{socket}";
	}
	# Are we being asked to connect to a remote server?
	if ($opt{host} ne 0) {
		chomp($opt{host});
		$opt{port} = ($opt{port} eq 0)? 3306 : $opt{port} ;
		# If we're doing a remote connection, but forcemem wasn't specified, we need to exit
		if ($opt{'forcemem'} eq 0) {
			badprint "The --forcemem option is required for remote connections\\n";
			exit;
		}
		infoprint "Performing tests on $opt{host}:$opt{port}\\n";
		$remotestring = " -h $opt{host} -P $opt{port}";
		$doremote = 1;
	}
	# Did we already get a username and password passed on the command line?
	if ($opt{user} ne 0 and $opt{pass} ne 0) {
		$mysqllogin = "-u $opt{user} -p'$opt{pass}'".$remotestring;
		my $loginstatus = `mysqladmin ping $mysqllogin 2>&1`;
		if ($loginstatus =~ /mysqld is alive/) {
			goodprint "Logged in using credentials passed on the command line\\n";
			return 1;
		} else {
			badprint "Attempted to use login credentials, but they were invalid\\n";
			exit 0;
		}
	}
	if ( -r "/etc/psa/.psa.shadow" and $doremote == 0 ) {
		# It's a Plesk box, use the available credentials
		$mysqllogin = "-u admin -p`cat /etc/psa/.psa.shadow`";
		my $loginstatus = `mysqladmin ping $mysqllogin 2>&1`;
		unless ($loginstatus =~ /mysqld is alive/) {
			badprint "Attempted to use login credentials from Plesk, but they failed.\\n";
			exit 0;
		}
	} else {
		# It's not Plesk, we should try a login
		my $loginstatus = `mysqladmin $remotestring ping 2>&1`;
		if ($loginstatus =~ /mysqld is alive/) {
			# Login went just fine
			$mysqllogin = " $remotestring ";
			# Did this go well because of a .my.cnf file or is there no password set?
			my $userpath = `printenv HOME`;
			if (length($userpath) > 0) {
				chomp($userpath);
			}
			unless ( -e "${userpath}/.my.cnf" ) {
				badprint "Successfully authenticated with no password - SECURITY RISK!\\n";
			}
			return 1;
		} else {
			print STDERR "Please enter your MySQL administrative login: ";
			my $name = <>;
			print STDERR "Please enter your MySQL administrative password: ";
			system("stty -echo");
			my $password = <>;
			system("stty echo");
			chomp($password);
			chomp($name);
			$mysqllogin = "-u $name";
			if (length($password) > 0) {
				$mysqllogin .= " -p'$password'";
			}
			$mysqllogin .= $remotestring;
			my $loginstatus = `mysqladmin ping $mysqllogin 2>&1`;
			if ($loginstatus =~ /mysqld is alive/) {
				print STDERR "\\n";
				if (! length($password)) {
					# Did this go well because of a .my.cnf file or is there no password set?
					my $userpath = `ls -d ~`;
					chomp($userpath);
					unless ( -e "$userpath/.my.cnf" ) {
						badprint "Successfully authenticated with no password - SECURITY RISK!\\n";
					}
				}
				return 1;
			} else {
				print "\\n".$bad." Attempted to use login credentials, but they were invalid.\\n";
				exit 0;
			}
			exit 0;
		}
	}
}

# Populates all of the variable and status hashes
my (%mystat,%myvar,$dummyselect);
sub get_all_vars {
	# We need to initiate at least one query so that our data is useable
	$dummyselect = `mysql $mysqllogin -Bse "SELECT VERSION();"`;
	my @mysqlvarlist = `mysql $mysqllogin -Bse "SHOW /*!50000 GLOBAL */ VARIABLES;"`;
	foreach my $line (@mysqlvarlist) {
		$line =~ /([a-zA-Z_]*)\\s*(.*)/;
		$myvar{$1} = $2;
	}
	my @mysqlstatlist = `mysql $mysqllogin -Bse "SHOW /*!50000 GLOBAL */ STATUS;"`;
	foreach my $line (@mysqlstatlist) {
		$line =~ /([a-zA-Z_]*)\\s*(.*)/;
		$mystat{$1} = $2;
	}
}

# Checks for updates to MySQLTuner
sub validate_tuner_version {
	print "\\n-------- General Statistics --------------------------------------------------\\n";
	if ($opt{checkversion} eq 0) {
		infoprint "Skipped version check for MySQLTuner script\\n";
		return;
	}
	my $update;
	my $url = "http://mysqltuner.com/versioncheck.php?v=$tunerversion";
	if (-e "/usr/bin/curl") {
		$update = `/usr/bin/curl --connect-timeout 5 '$url' 2>/dev/null`;
		chomp($update);
	} elsif (-e "/usr/bin/wget") {
		$update = `/usr/bin/wget -e timestamping=off -T 5 -O - '$url' 2>/dev/null`;
		chomp($update);
	}
	if ($update eq 1) {
		badprint "There is a new version of MySQLTuner available\\n";
	} elsif ($update eq 0) {
		goodprint "You have the latest version of MySQLTuner\\n";
	} else {
		infoprint "Unable to check for the latest MySQLTuner version\\n";
	}
}

# Checks for supported or EOL'ed MySQL versions
my ($mysqlvermajor,$mysqlverminor);
sub validate_mysql_version {
	($mysqlvermajor,$mysqlverminor) = $myvar{'version'} =~ /(\\d)\\.(\\d)/;
	if ($mysqlvermajor < 5) {
		badprint "Your MySQL version ".$myvar{'version'}." is EOL software!  Upgrade soon!\\n";
	} elsif ($mysqlvermajor == 5) {
		goodprint "Currently running supported MySQL version ".$myvar{'version'}."\\n";
	} else {
		badprint "Currently running unsupported MySQL version ".$myvar{'version'}."\\n";
	}
}

# Checks for 32-bit boxes with more than 2GB of RAM
my ($arch);
sub check_architecture {
	if ($doremote eq 1) { return; }
	if (`uname` =~ /SunOS/ && `isainfo -b` =~ /64/) {
		$arch = 64;
		goodprint "Operating on 64-bit architecture\\n";
	} elsif (`uname` !~ /SunOS/ && `uname -m` =~ /64/) {
		$arch = 64;
		goodprint "Operating on 64-bit architecture\\n";
	} else {
		$arch = 32;
		if ($physical_memory > 2147483648) {
			badprint "Switch to 64-bit OS - MySQL cannot currently use all of your RAM\\n";
		} else {
			goodprint "Operating on 32-bit architecture with less than 2GB RAM\\n";
		}
	}
}

# Start up a ton of storage engine counts/statistics
my (%enginestats,%enginecount,$fragtables);
sub check_storage_engines {
	if ($opt{skipsize} eq 1) {
		print "\\n-------- Storage Engine Statistics -------------------------------------------\\n";
		infoprint "Skipped due to --skipsize option\\n";
		return;
	}
	print "\\n-------- Storage Engine Statistics -------------------------------------------\\n";
	infoprint "Status: ";
	my $engines;
	$engines .= (defined $myvar{'have_archive'} && $myvar{'have_archive'} eq "YES")? greenwrap "+Archive " : redwrap "-Archive " ;
	$engines .= (defined $myvar{'have_bdb'} && $myvar{'have_bdb'} eq "YES")? greenwrap "+BDB " : redwrap "-BDB " ;
	$engines .= (defined $myvar{'have_federated'} && $myvar{'have_federated'} eq "YES")? greenwrap "+Federated " : redwrap "-Federated " ;
	$engines .= (defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES")? greenwrap "+InnoDB " : redwrap "-InnoDB " ;
	$engines .= (defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES")? greenwrap "+ISAM " : redwrap "-ISAM " ;
	$engines .= (defined $myvar{'have_ndbcluster'} && $myvar{'have_ndbcluster'} eq "YES")? greenwrap "+NDBCluster " : redwrap "-NDBCluster " ;
	print "$engines\\n";
	if ($mysqlvermajor >= 5) {
		# MySQL 5 servers can have table sizes calculated quickly from information schema
		my @templist = `mysql $mysqllogin -Bse "SELECT ENGINE,SUM(DATA_LENGTH),COUNT(ENGINE) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema','mysql') AND ENGINE IS NOT NULL GROUP BY ENGINE ORDER BY ENGINE ASC;"`;
		foreach my $line (@templist) {
			my ($engine,$size,$count);
			($engine,$size,$count) = $line =~ /([a-zA-Z_]*)\\s+(\\d+)\\s+(\\d+)/;
			if (!defined($size)) { next; }
			$enginestats{$engine} = $size;
			$enginecount{$engine} = $count;
		}
		$fragtables = `mysql $mysqllogin -Bse "SELECT COUNT(TABLE_NAME) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema','mysql') AND Data_free > 0 AND NOT ENGINE='MEMORY';"`;
		chomp($fragtables);
	} else {
		# MySQL < 5 servers take a lot of work to get table sizes
		my @tblist;
		# Now we build a database list, and loop through it to get storage engine stats for tables
		my @dblist = `mysql $mysqllogin -Bse "SHOW DATABASES"`;
		foreach my $db (@dblist) {
			chomp($db);
			if ($db eq "information_schema") { next; }
			if ($mysqlvermajor == 3 || ($mysqlvermajor == 4 && $mysqlverminor == 0)) {
				# MySQL 3.23/4.0 keeps Data_Length in the 6th column
				push (@tblist,`mysql $mysqllogin -Bse "SHOW TABLE STATUS FROM \\\\\\`$db\\\\\\`" | awk '{print \\$2,\\$6,\\$9}'`);
			} else {
				# MySQL 4.1+ keeps Data_Length in the 7th column
				push (@tblist,`mysql $mysqllogin -Bse "SHOW TABLE STATUS FROM \\\\\\`$db\\\\\\`" | awk '{print \\$2,\\$7,\\$10}'`);
			}
		}
		# Parse through the table list to generate storage engine counts/statistics
		$fragtables = 0;
		foreach my $line (@tblist) {
			chomp($line);
			$line =~ /([a-zA-Z_]*)\\s+(\\d+)\\s+(\\d+)/;
			my $engine = $1;
			my $size = $2;
			my $datafree = $3;
			if ($size !~ /^\\d+$/) { $size = 0; }
			if (defined $enginestats{$engine}) {
				$enginestats{$engine} += $size;
				$enginecount{$engine} += 1;
			} else {
				$enginestats{$engine} = $size;
				$enginecount{$engine} = 1;
			}
			if ($datafree > 0) {
				$fragtables++;
			}
		}
	}
	while (my ($engine,$size) = each(%enginestats)) {
		infoprint "Data in $engine tables: ".hr_bytes_rnd($size)." (Tables: ".$enginecount{$engine}.")"."\\n";
	}
	# If the storage engine isn't being used, recommend it to be disabled
	if (!defined $enginestats{'InnoDB'} && defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES") {
		badprint "InnoDB is enabled but isn't being used\\n";
		push(@generalrec,"Add skip-innodb to MySQL configuration to disable InnoDB");
	}
	if (!defined $enginestats{'BerkeleyDB'} && defined $myvar{'have_bdb'} && $myvar{'have_bdb'} eq "YES") {
		badprint "BDB is enabled but isn't being used\\n";
		push(@generalrec,"Add skip-bdb to MySQL configuration to disable BDB");
	}
	if (!defined $enginestats{'ISAM'} && defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES") {
		badprint "ISAM is enabled but isn't being used\\n";
		push(@generalrec,"Add skip-isam to MySQL configuration to disable ISAM (MySQL > 4.1.0)");
	}
	# Fragmented tables
	if ($fragtables > 0) {
		badprint "Total fragmented tables: $fragtables\\n";
		push(@generalrec,"Run OPTIMIZE TABLE to defragment tables for better performance");
	} else {
		goodprint "Total fragmented tables: $fragtables\\n";
	}
}

my %mycalc;
sub calculations {
	if ($mystat{'Questions'} < 1) {
		badprint "Your server has not answered any queries - cannot continue...";
		exit 0;
	}
	# Per-thread memory
	if ($mysqlvermajor > 3) {
		$mycalc{'per_thread_buffers'} = $myvar{'read_buffer_size'} + $myvar{'read_rnd_buffer_size'} + $myvar{'sort_buffer_size'} + $myvar{'thread_stack'} + $myvar{'join_buffer_size'};
	} else {
		$mycalc{'per_thread_buffers'} = $myvar{'record_buffer'} + $myvar{'record_rnd_buffer'} + $myvar{'sort_buffer'} + $myvar{'thread_stack'} + $myvar{'join_buffer_size'};
	}
	$mycalc{'total_per_thread_buffers'} = $mycalc{'per_thread_buffers'} * $myvar{'max_connections'};
	$mycalc{'max_total_per_thread_buffers'} = $mycalc{'per_thread_buffers'} * $mystat{'Max_used_connections'};

	# Server-wide memory
	$mycalc{'max_tmp_table_size'} = ($myvar{'tmp_table_size'} > $myvar{'max_heap_table_size'}) ? $myvar{'max_heap_table_size'} : $myvar{'tmp_table_size'} ;
	$mycalc{'server_buffers'} = $myvar{'key_buffer_size'} + $mycalc{'max_tmp_table_size'};
	$mycalc{'server_buffers'} += (defined $myvar{'innodb_buffer_pool_size'}) ? $myvar{'innodb_buffer_pool_size'} : 0 ;
	$mycalc{'server_buffers'} += (defined $myvar{'innodb_additional_mem_pool_size'}) ? $myvar{'innodb_additional_mem_pool_size'} : 0 ;
	$mycalc{'server_buffers'} += (defined $myvar{'innodb_log_buffer_size'}) ? $myvar{'innodb_log_buffer_size'} : 0 ;
	$mycalc{'server_buffers'} += (defined $myvar{'query_cache_size'}) ? $myvar{'query_cache_size'} : 0 ;

	# Global memory
	$mycalc{'max_used_memory'} = $mycalc{'server_buffers'} + $mycalc{"max_total_per_thread_buffers"};
	$mycalc{'total_possible_used_memory'} = $mycalc{'server_buffers'} + $mycalc{'total_per_thread_buffers'};
	$mycalc{'pct_physical_memory'} = int(($mycalc{'total_possible_used_memory'} * 100) / $physical_memory);

	# Slow queries
	$mycalc{'pct_slow_queries'} = int(($mystat{'Slow_queries'}/$mystat{'Questions'}) * 100);

	# Connections
	$mycalc{'pct_connections_used'} = int(($mystat{'Max_used_connections'}/$myvar{'max_connections'}) * 100);
	$mycalc{'pct_connections_used'} = ($mycalc{'pct_connections_used'} > 100) ? 100 : $mycalc{'pct_connections_used'} ;

	# Key buffers
	if ($mysqlvermajor > 3 && !($mysqlvermajor == 4 && $mysqlverminor == 0)) {
		$mycalc{'pct_key_buffer_used'} = sprintf("%.1f",(1 - (($mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'}) / $myvar{'key_buffer_size'})) * 100);
	}
	if ($mystat{'Key_read_requests'} > 0) {
		$mycalc{'pct_keys_from_mem'} = sprintf("%.1f",(100 - (($mystat{'Key_reads'} / $mystat{'Key_read_requests'}) * 100)));
	} else {
	    $mycalc{'pct_keys_from_mem'} = 0;
	}
	if ($doremote eq 0 and $mysqlvermajor < 5) {
		$mycalc{'total_myisam_indexes'} = `find $myvar{'datadir'} -name '*.MYI' 2>&1 | xargs du -L $duflags '{}' 2>&1 | awk '{ s += \\$1 } END { printf (\\"%d\\",s) }'`;
	} elsif ($mysqlvermajor >= 5) {
		$mycalc{'total_myisam_indexes'} = `mysql $mysqllogin -Bse "SELECT IFNULL(SUM(INDEX_LENGTH),0) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema') AND ENGINE = 'MyISAM';"`;
	}
	if (defined $mycalc{'total_myisam_indexes'} and $mycalc{'total_myisam_indexes'} =~ /^0\\n$/) {
		$mycalc{'total_myisam_indexes'} = "fail";
	} elsif (defined $mycalc{'total_myisam_indexes'}) {
		chomp($mycalc{'total_myisam_indexes'});
	}

	# Query cache
	if ($mysqlvermajor > 3) {
		$mycalc{'query_cache_efficiency'} = sprintf("%.1f",($mystat{'Qcache_hits'} / ($mystat{'Com_select'} + $mystat{'Qcache_hits'})) * 100);
		if ($myvar{'query_cache_size'}) {
			$mycalc{'pct_query_cache_used'} = sprintf("%.1f",100 - ($mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'}) * 100);
		}
	if ($mystat{'Qcache_lowmem_prunes'} == 0) {
			$mycalc{'query_cache_prunes_per_day'} = 0;
		} else {
			$mycalc{'query_cache_prunes_per_day'} = int($mystat{'Qcache_lowmem_prunes'} / ($mystat{'Uptime'}/86400));
		}
	}

	# Sorting
	$mycalc{'total_sorts'} = $mystat{'Sort_scan'} + $mystat{'Sort_range'};
	if ($mycalc{'total_sorts'} > 0) {
		$mycalc{'pct_temp_sort_table'} = int(($mystat{'Sort_merge_passes'} / $mycalc{'total_sorts'}) * 100);
	}

	# Joins
	$mycalc{'joins_without_indexes'} = $mystat{'Select_range_check'} + $mystat{'Select_full_join'};
	$mycalc{'joins_without_indexes_per_day'} = int($mycalc{'joins_without_indexes'} / ($mystat{'Uptime'}/86400));

	# Temporary tables
	if ($mystat{'Created_tmp_tables'} > 0) {
		if ($mystat{'Created_tmp_disk_tables'} > 0) {
			$mycalc{'pct_temp_disk'} = int(($mystat{'Created_tmp_disk_tables'} / ($mystat{'Created_tmp_tables'} + $mystat{'Created_tmp_disk_tables'})) * 100);
		} else {
			$mycalc{'pct_temp_disk'} = 0;
		}
	}

	# Table cache
	if ($mystat{'Opened_tables'} > 0) {
		$mycalc{'table_cache_hit_rate'} = int($mystat{'Open_tables'}*100/$mystat{'Opened_tables'});
	} else {
		$mycalc{'table_cache_hit_rate'} = 100;
	}

	# Open files
	if ($myvar{'open_files_limit'} > 0) {
		$mycalc{'pct_files_open'} = int($mystat{'Open_files'}*100/$myvar{'open_files_limit'});
	}

	# Table locks
	if ($mystat{'Table_locks_immediate'} > 0) {
		if ($mystat{'Table_locks_waited'} == 0) {
			$mycalc{'pct_table_locks_immediate'} = 100;
		} else {
			$mycalc{'pct_table_locks_immediate'} = int($mystat{'Table_locks_immediate'}*100/($mystat{'Table_locks_waited'} + $mystat{'Table_locks_immediate'}));
		}
	}

	# Thread cache
	$mycalc{'thread_cache_hit_rate'} = int(100 - (($mystat{'Threads_created'} / $mystat{'Connections'}) * 100));

	# Other
	if ($mystat{'Connections'} > 0) {
		$mycalc{'pct_aborted_connections'} = int(($mystat{'Aborted_connects'}/$mystat{'Connections'}) * 100);
	}
	if ($mystat{'Questions'} > 0) {
		$mycalc{'total_reads'} = $mystat{'Com_select'};
		$mycalc{'total_writes'} = $mystat{'Com_delete'} + $mystat{'Com_insert'} + $mystat{'Com_update'} + $mystat{'Com_replace'};
		if ($mycalc{'total_reads'} == 0) {
			$mycalc{'pct_reads'} = 0;
			$mycalc{'pct_writes'} = 100;
		} else {
			$mycalc{'pct_reads'} = int(($mycalc{'total_reads'}/($mycalc{'total_reads'}+$mycalc{'total_writes'})) * 100);
			$mycalc{'pct_writes'} = 100-$mycalc{'pct_reads'};
		}
	}

	# InnoDB
	if ($myvar{'have_innodb'} eq "YES") {
		$mycalc{'innodb_log_size_pct'} = ($myvar{'innodb_log_file_size'} * 100 / $myvar{'innodb_buffer_pool_size'});
	}
}

sub mysql_stats {
	print "\\n-------- Performance Metrics -------------------------------------------------\\n";
	# Show uptime, queries per second, connections, traffic stats
	my $qps;
	if ($mystat{'Uptime'} > 0) { $qps = sprintf("%.3f",$mystat{'Questions'}/$mystat{'Uptime'}); }
	if ($mystat{'Uptime'} < 86400) { push(@generalrec,"MySQL started within last 24 hours - recommendations may be inaccurate"); }
	infoprint "Up for: ".pretty_uptime($mystat{'Uptime'})." (".hr_num($mystat{'Questions'}).
		" q [".hr_num($qps)." qps], ".hr_num($mystat{'Connections'})." conn,".
		" TX: ".hr_num($mystat{'Bytes_sent'}).", RX: ".hr_num($mystat{'Bytes_received'}).")\\n";
	infoprint "Reads / Writes: ".$mycalc{'pct_reads'}."% / ".$mycalc{'pct_writes'}."%\\n";

	# Memory usage
	infoprint "Total buffers: ".hr_bytes($mycalc{'server_buffers'})." global + ".hr_bytes($mycalc{'per_thread_buffers'})." per thread ($myvar{'max_connections'} max threads)\\n";
	if ($mycalc{'total_possible_used_memory'} > 2*1024*1024*1024 && $arch eq 32) {
		badprint "Allocating > 2GB RAM on 32-bit systems can cause system instability\\n";
		badprint "Maximum possible memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\\n";
	} elsif ($mycalc{'pct_physical_memory'} > 85) {
		badprint "Maximum possible memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\\n";
		push(@generalrec,"Reduce your overall MySQL memory footprint for system stability");
	} else {
		goodprint "Maximum possible memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\\n";
	}

	# Slow queries
	if ($mycalc{'pct_slow_queries'} > 5) {
		badprint "Slow queries: $mycalc{'pct_slow_queries'}% (".hr_num($mystat{'Slow_queries'})."/".hr_num($mystat{'Questions'}).")\\n";
	} else {
		goodprint "Slow queries: $mycalc{'pct_slow_queries'}% (".hr_num($mystat{'Slow_queries'})."/".hr_num($mystat{'Questions'}).")\\n";
	}
	if ($myvar{'long_query_time'} > 10) { push(@adjvars,"long_query_time (<= 10)"); }
	if (defined($myvar{'log_slow_queries'})) {
		if ($myvar{'log_slow_queries'} eq "OFF") { push(@generalrec,"Enable the slow query log to troubleshoot bad queries"); }
	}

	# Connections
	if ($mycalc{'pct_connections_used'} > 85) {
		badprint "Highest connection usage: $mycalc{'pct_connections_used'}%  ($mystat{'Max_used_connections'}/$myvar{'max_connections'})\\n";
		push(@adjvars,"max_connections (> ".$myvar{'max_connections'}.")");
		push(@adjvars,"wait_timeout (< ".$myvar{'wait_timeout'}.")","interactive_timeout (< ".$myvar{'interactive_timeout'}.")");
		push(@generalrec,"Reduce or eliminate persistent connections to reduce connection usage")
	} else {
		goodprint "Highest usage of available connections: $mycalc{'pct_connections_used'}% ($mystat{'Max_used_connections'}/$myvar{'max_connections'})\\n";
	}

	# Key buffer
	if (!defined($mycalc{'total_myisam_indexes'}) and $doremote == 1) {
		push(@generalrec,"Unable to calculate MyISAM indexes on remote MySQL server < 5.0.0");
	} elsif ($mycalc{'total_myisam_indexes'} =~ /^fail$/) {
		badprint "Cannot calculate MyISAM index size - re-run script as root user\\n";
	} elsif ($mycalc{'total_myisam_indexes'} == "0") {
		badprint "None of your MyISAM tables are indexed - add indexes immediately\\n";
	} else {
		if ($myvar{'key_buffer_size'} < $mycalc{'total_myisam_indexes'} && $mycalc{'pct_keys_from_mem'} < 95) {
			badprint "Key buffer size / total MyISAM indexes: ".hr_bytes($myvar{'key_buffer_size'})."/".hr_bytes($mycalc{'total_myisam_indexes'})."\\n";
			push(@adjvars,"key_buffer_size (> ".hr_bytes($mycalc{'total_myisam_indexes'}).")");
		} else {
			goodprint "Key buffer size / total MyISAM indexes: ".hr_bytes($myvar{'key_buffer_size'})."/".hr_bytes($mycalc{'total_myisam_indexes'})."\\n";
		}
		if ($mystat{'Key_read_requests'} > 0) {
			if ($mycalc{'pct_keys_from_mem'} < 95) {
				badprint "Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% (".hr_num($mystat{'Key_read_requests'})." cached / ".hr_num($mystat{'Key_reads'})." reads)\\n";
			} else {
				goodprint "Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% (".hr_num($mystat{'Key_read_requests'})." cached / ".hr_num($mystat{'Key_reads'})." reads)\\n";
			}
		} else {
			# No queries have run that would use keys
		}
	}

	# Query cache
	if ($mysqlvermajor < 4) {
		# MySQL versions < 4.01 don't support query caching
		push(@generalrec,"Upgrade MySQL to version 4+ to utilize query caching");
	} elsif ($myvar{'query_cache_size'} < 1) {
		badprint "Query cache is disabled\\n";
		push(@adjvars,"query_cache_size (>= 8M)");
	} elsif ($mystat{'Com_select'} == 0) {
		badprint "Query cache cannot be analyzed - no SELECT statements executed\\n";
	} else {
		if ($mycalc{'query_cache_efficiency'} < 20) {
			badprint "Query cache efficiency: $mycalc{'query_cache_efficiency'}% (".hr_num($mystat{'Qcache_hits'})." cached / ".hr_num($mystat{'Qcache_hits'}+$mystat{'Com_select'})." selects)\\n";
			push(@adjvars,"query_cache_limit (> ".hr_bytes_rnd($myvar{'query_cache_limit'}).", or use smaller result sets)");
		} else {
			goodprint "Query cache efficiency: $mycalc{'query_cache_efficiency'}% (".hr_num($mystat{'Qcache_hits'})." cached / ".hr_num($mystat{'Qcache_hits'}+$mystat{'Com_select'})." selects)\\n";
		}
		if ($mycalc{'query_cache_prunes_per_day'} > 98) {
			badprint "Query cache prunes per day: $mycalc{'query_cache_prunes_per_day'}\\n";
			if ($myvar{'query_cache_size'} > 128*1024*1024) {
			    push(@generalrec,"Increasing the query_cache size over 128M may reduce performance");
		        push(@adjvars,"query_cache_size (> ".hr_bytes_rnd($myvar{'query_cache_size'}).") [see warning above]");
			} else {
		        push(@adjvars,"query_cache_size (> ".hr_bytes_rnd($myvar{'query_cache_size'}).")");
			}
		} else {
			goodprint "Query cache prunes per day: $mycalc{'query_cache_prunes_per_day'}\\n";
		}
	}

	# Sorting
	if ($mycalc{'total_sorts'} == 0) {
		# For the sake of space, we will be quiet here
		# No sorts have run yet
	} elsif ($mycalc{'pct_temp_sort_table'} > 10) {
		badprint "Sorts requiring temporary tables: $mycalc{'pct_temp_sort_table'}% (".hr_num($mystat{'Sort_merge_passes'})." temp sorts / ".hr_num($mycalc{'total_sorts'})." sorts)\\n";
		push(@adjvars,"sort_buffer_size (> ".hr_bytes_rnd($myvar{'sort_buffer_size'}).")");
		push(@adjvars,"read_rnd_buffer_size (> ".hr_bytes_rnd($myvar{'read_rnd_buffer_size'}).")");
	} else {
		goodprint "Sorts requiring temporary tables: $mycalc{'pct_temp_sort_table'}% (".hr_num($mystat{'Sort_merge_passes'})." temp sorts / ".hr_num($mycalc{'total_sorts'})." sorts)\\n";
	}

	# Joins
	if ($mycalc{'joins_without_indexes_per_day'} > 250) {
		badprint "Joins performed without indexes: $mycalc{'joins_without_indexes'}\\n";
		push(@adjvars,"join_buffer_size (> ".hr_bytes($myvar{'join_buffer_size'}).", or always use indexes with joins)");
		push(@generalrec,"Adjust your join queries to always utilize indexes");
	} else {
		# For the sake of space, we will be quiet here
		# No joins have run without indexes
	}

	# Temporary tables
	if ($mystat{'Created_tmp_tables'} > 0) {
		if ($mycalc{'pct_temp_disk'} > 25 && $mycalc{'max_tmp_table_size'} < 256*1024*1024) {
			badprint "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% (".hr_num($mystat{'Created_tmp_disk_tables'})." on disk / ".hr_num($mystat{'Created_tmp_disk_tables'} + $mystat{'Created_tmp_tables'})." total)\\n";
			push(@adjvars,"tmp_table_size (> ".hr_bytes_rnd($myvar{'tmp_table_size'}).")");
			push(@adjvars,"max_heap_table_size (> ".hr_bytes_rnd($myvar{'max_heap_table_size'}).")");
			push(@generalrec,"When making adjustments, make tmp_table_size/max_heap_table_size equal");
			push(@generalrec,"Reduce your SELECT DISTINCT queries without LIMIT clauses");
		} elsif ($mycalc{'pct_temp_disk'} > 25 && $mycalc{'max_tmp_table_size'} >= 256) {
			badprint "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% (".hr_num($mystat{'Created_tmp_disk_tables'})." on disk / ".hr_num($mystat{'Created_tmp_disk_tables'} + $mystat{'Created_tmp_tables'})." total)\\n";
			push(@generalrec,"Temporary table size is already large - reduce result set size");
			push(@generalrec,"Reduce your SELECT DISTINCT queries without LIMIT clauses");
		} else {
			goodprint "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% (".hr_num($mystat{'Created_tmp_disk_tables'})." on disk / ".hr_num($mystat{'Created_tmp_disk_tables'} + $mystat{'Created_tmp_tables'})." total)\\n";
		}
	} else {
		# For the sake of space, we will be quiet here
		# No temporary tables have been created
	}

	# Thread cache
	if ($myvar{'thread_cache_size'} eq 0) {
		badprint "Thread cache is disabled\\n";
		push(@generalrec,"Set thread_cache_size to 4 as a starting value");
		push(@adjvars,"thread_cache_size (start at 4)");
	} else {
		if ($mycalc{'thread_cache_hit_rate'} <= 50) {
			badprint "Thread cache hit rate: $mycalc{'thread_cache_hit_rate'}% (".hr_num($mystat{'Threads_created'})." created / ".hr_num($mystat{'Connections'})." connections)\\n";
			push(@adjvars,"thread_cache_size (> $myvar{'thread_cache_size'})");
		} else {
			goodprint "Thread cache hit rate: $mycalc{'thread_cache_hit_rate'}% (".hr_num($mystat{'Threads_created'})." created / ".hr_num($mystat{'Connections'})." connections)\\n";
		}
	}

	# Table cache
	if ($mystat{'Open_tables'} > 0) {
		if ($mycalc{'table_cache_hit_rate'} < 20) {
			badprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% (".hr_num($mystat{'Open_tables'})." open / ".hr_num($mystat{'Opened_tables'})." opened)\\n";
			if ($mysqlvermajor eq 6 || ($mysqlvermajor eq 5 && $mysqlverminor ge 1)) {
				push(@adjvars,"table_cache (> ".$myvar{'table_open_cache'}.")");
			} else {
				push(@adjvars,"table_cache (> ".$myvar{'table_cache'}.")");
			}
			push(@generalrec,"Increase table_cache gradually to avoid file descriptor limits");
		} else {
			goodprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% (".hr_num($mystat{'Open_tables'})." open / ".hr_num($mystat{'Opened_tables'})." opened)\\n";
		}
	}

	# Open files
	if (defined $mycalc{'pct_files_open'}) {
		if ($mycalc{'pct_files_open'} > 85) {
			badprint "Open file limit used: $mycalc{'pct_files_open'}% (".hr_num($mystat{'Open_files'})."/".hr_num($myvar{'open_files_limit'}).")\\n";
			push(@adjvars,"open_files_limit (> ".$myvar{'open_files_limit'}.")");
		} else {
			goodprint "Open file limit used: $mycalc{'pct_files_open'}% (".hr_num($mystat{'Open_files'})."/".hr_num($myvar{'open_files_limit'}).")\\n";
		}
	}

	# Table locks
	if (defined $mycalc{'pct_table_locks_immediate'}) {
		if ($mycalc{'pct_table_locks_immediate'} < 95) {
			badprint "Table locks acquired immediately: $mycalc{'pct_table_locks_immediate'}%\\n";
			push(@generalrec,"Optimize queries and/or use InnoDB to reduce lock wait");
		} else {
			goodprint "Table locks acquired immediately: $mycalc{'pct_table_locks_immediate'}% (".hr_num($mystat{'Table_locks_immediate'})." immediate / ".hr_num($mystat{'Table_locks_waited'}+$mystat{'Table_locks_immediate'})." locks)\\n";
		}
	}

	# Performance options
	if ($mysqlvermajor == 3 || ($mysqlvermajor == 4 && $mysqlverminor == 0)) {
		push(@generalrec,"Upgrade to MySQL 4.1+ to use concurrent MyISAM inserts");
	} elsif ($myvar{'concurrent_insert'} eq "OFF") {
		push(@generalrec,"Enable concurrent_insert by setting it to 'ON'");
	} elsif ($myvar{'concurrent_insert'} eq 0) {
		push(@generalrec,"Enable concurrent_insert by setting it to 1");
	}
	if ($mycalc{'pct_aborted_connections'} > 5) {
		badprint "Connections aborted: ".$mycalc{'pct_aborted_connections'}."%\\n";
		push(@generalrec,"Your applications are not closing MySQL connections properly");
	}

	# InnoDB
	if (defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES" && defined $enginestats{'InnoDB'}) {
		if ($myvar{'innodb_buffer_pool_size'} > $enginestats{'InnoDB'}) {
			goodprint "InnoDB data size / buffer pool: ".hr_bytes($enginestats{'InnoDB'})."/".hr_bytes($myvar{'innodb_buffer_pool_size'})."\\n";
		} else {
			badprint "InnoDB data size / buffer pool: ".hr_bytes($enginestats{'InnoDB'})."/".hr_bytes($myvar{'innodb_buffer_pool_size'})."\\n";
			push(@adjvars,"innodb_buffer_pool_size (>= ".hr_bytes_rnd($enginestats{'InnoDB'}).")");
		}
	}
}

# Take the two recommendation arrays and display them at the end of the output
sub make_recommendations {
	print "\\n-------- Recommendations -----------------------------------------------------\\n";
	if (@generalrec > 0) {
		print "General recommendations:\\n";
		foreach (@generalrec) { print "    ".$_."\\n"; }
	}
	if (@adjvars > 0) {
		print "Variables to adjust:\\n";
		if ($mycalc{'pct_physical_memory'} > 90) {
			print "  *** MySQL's maximum memory usage is dangerously high ***\\n".
				  "  *** Add RAM before increasing MySQL buffer variables ***\\n";
		}
		foreach (@adjvars) { print "    ".$_."\\n"; }
	}
	if (@generalrec == 0 && @adjvars ==0) {
		print "No additional performance recommendations are available.\\n"
	}
	print "\\n";
}

# ---------------------------------------------------------------------------
# BEGIN 'MAIN'
# ---------------------------------------------------------------------------
print	"\\n >>  MySQLTuner $tunerversion - Major Hayden <major\\@mhtx.net>\\n".
		" >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/\\n".
		" >>  Run with '--help' for additional options and output filtering\\n";
mysql_setup;					# Gotta login first
os_setup;						# Set up some OS variables
get_all_vars;					# Toss variables/status into hashes
validate_tuner_version;			# Check current MySQLTuner version
validate_mysql_version;			# Check current MySQL version
check_architecture;				# Suggest 64-bit upgrade
check_storage_engines;			# Show enabled storage engines
calculations;					# Calculate everything we need
mysql_stats;					# Print the server stats
make_recommendations;			# Make recommendations based on stats
# ---------------------------------------------------------------------------
# END 'MAIN'
# ---------------------------------------------------------------------------

END_OF_CODE


end