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Adding information about Max and Reached memory for MySQL process.

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root 2015-07-02 00:19:28 +02:00
parent ea93fe3116
commit 044f7c52c6
2 changed files with 76 additions and 37 deletions
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3
USAGE.md
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@ -1,6 +1,6 @@
# NAME # NAME
MySQLTuner 1.4.5 - MySQL High Performance Tuning Script MySQLTuner 1.4.6 - MySQL High Performance Tuning Script
# IMPORTANT USAGE GUIDELINES # IMPORTANT USAGE GUIDELINES
@ -36,6 +36,7 @@ You must provide the remote server's total memory when connecting to other serve
--noinfo Remove informational responses --noinfo Remove informational responses
--debug Print debug information --debug Print debug information
--dbstat Print database information --dbstat Print database information
--idxstat Print index information
--nocolor Don't print output in color --nocolor Don't print output in color
--buffers Print global and per-thread buffer values --buffers Print global and per-thread buffer values

76
mysqltuner.pl
View file

@ -1,5 +1,5 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
# mysqltuner.pl - Version 1.4.5 # mysqltuner.pl - Version 1.4.6
# High Performance MySQL Tuning Script # High Performance MySQL Tuning Script
# Copyright (C) 2006-2015 Major Hayden - major@mhtx.net # Copyright (C) 2006-2015 Major Hayden - major@mhtx.net
# #
@ -43,7 +43,7 @@ use File::Basename;
use Cwd 'abs_path'; use Cwd 'abs_path';
#use Data::Dumper qw/Dumper/; #use Data::Dumper qw/Dumper/;
# Set up a few variables for use in the script # Set up a few variables for use in the script
my $tunerversion = "1.4.5"; my $tunerversion = "1.4.6";
my (@adjvars, @generalrec); my (@adjvars, @generalrec);
# Set defaults # Set defaults
@ -66,6 +66,7 @@ my %opt = (
"passwordfile" => 0, "passwordfile" => 0,
"reportfile" => 0, "reportfile" => 0,
"dbstat" => 0, "dbstat" => 0,
"idxstat" => 0,
); );
@ -93,14 +94,14 @@ GetOptions(\%opt,
'reportfile=s', 'reportfile=s',
'silent', 'silent',
'dbstat', 'dbstat',
'idxstat',
); );
if (defined $opt{'help'} && $opt{'help'} == 1) { usage(); } if (defined $opt{'help'} && $opt{'help'} == 1) { usage(); }
sub usage { sub usage {
# Shown with --help option passed # Shown with --help option passed
print "\n". print " MySQLTuner $tunerversion - MySQL High Performance Tuning Script\n".
" MySQLTuner $tunerversion - MySQL High Performance Tuning Script\n".
" Bug reports, feature requests, and downloads at http://mysqltuner.com/\n". " Bug reports, feature requests, and downloads at http://mysqltuner.com/\n".
" Maintained by Major Hayden (major\@mhtx.net) - Licensed under GPL\n". " Maintained by Major Hayden (major\@mhtx.net) - Licensed under GPL\n".
"\n". "\n".
@ -134,9 +135,9 @@ sub usage {
" --noinfo Remove informational responses\n". " --noinfo Remove informational responses\n".
" --debug Print debug information\n". " --debug Print debug information\n".
" --dbstat Print database information\n". " --dbstat Print database information\n".
" --idxstat Print index information\n".
" --nocolor Don't print output in color\n". " --nocolor Don't print output in color\n".
" --buffers Print global and per-thread buffer values\n". " --buffers Print global and per-thread buffer values\n";
"\n";
exit; exit;
} }
@ -218,6 +219,7 @@ sub hr_num {
sub percentage{ sub percentage{
my $value=shift; my $value=shift;
my $total=shift; my $total=shift;
$total=0 unless defined $total;
return 100,00 if $total == 0; return 100,00 if $total == 0;
return sprintf("%.2f", ($value*100/$total) ); return sprintf("%.2f", ($value*100/$total) );
} }
@ -551,7 +553,7 @@ sub security_recommendations {
} }
unless (-f $basic_password_files) { unless (-f $basic_password_files) {
badprint "There is not basic password file list !"; badprint "There is not basic password file list !\n";
return; return;
} }
@ -728,9 +730,7 @@ sub check_storage_engines {
my @dblist = `$mysqlcmd $mysqllogin -Bse "SHOW DATABASES"`; my @dblist = `$mysqlcmd $mysqllogin -Bse "SHOW DATABASES"`;
foreach my $db (@dblist) { foreach my $db (@dblist) {
chomp($db); chomp($db);
if ($db eq "information_schema") { next; } if ($db eq "information_schema" or $db eq "performance_schema" or $db eq "mysql") { next; }
if ($db eq "performance_schema") { next; }
if ($db eq "mysql") { next; }
my @ixs = (1, 6, 9); my @ixs = (1, 6, 9);
if (!mysql_version_ge(4, 1)) { if (!mysql_version_ge(4, 1)) {
# MySQL 3.23/4.0 keeps Data_Length in the 5th (0-based) column # MySQL 3.23/4.0 keeps Data_Length in the 5th (0-based) column
@ -848,6 +848,21 @@ sub calculations {
$mycalc{'total_possible_used_memory'} = $mycalc{'server_buffers'} + $mycalc{'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); $mycalc{'pct_physical_memory'} = int(($mycalc{'total_possible_used_memory'} * 100) / $physical_memory);
# Maximum memory limit
$mycalc{'max_peak_memory'}=0;
foreach my $key ( 'key_buffer_size', 'query_cache_size', 'tmp_table_size',
'innodb_buffer_pool_size', 'innodb_additional_mem_pool_size',
'innodb_log_buffer_size') {
$mycalc{'max_peak_memory'}+=$myvar{$key} if defined $myvar{$key};
}
foreach my $key ( 'sort_buffer_size', 'read_buffer_size', 'read_rnd_buffer_size', 'join_buffer_size',
'thread_stack', 'binlog_cache_size' ) {
$mycalc{'max_peak_memory'}+=($myvar{$key}*$myvar{'max_connections'}) if defined $myvar{$key};
}
debugprint "Max Peak Memory: ".hr_bytes($mycalc{'max_peak_memory'})."\n";
$mycalc{'pct_max_physical_memory'} = percentage($mycalc{'max_peak_memory'}, $physical_memory);
debugprint "Max Percentage RAM: ".$mycalc{'pct_max_physical_memory'}."%\n";
# Slow queries # Slow queries
$mycalc{'pct_slow_queries'} = int(($mystat{'Slow_queries'}/$mystat{'Questions'}) * 100); $mycalc{'pct_slow_queries'} = int(($mystat{'Slow_queries'}/$mystat{'Questions'}) * 100);
@ -1031,12 +1046,18 @@ sub mysql_stats {
if ($arch && $arch == 32 && $mycalc{'total_possible_used_memory'} > 2*1024*1024*1024) { if ($arch && $arch == 32 && $mycalc{'total_possible_used_memory'} > 2*1024*1024*1024) {
badprint "Allocating > 2GB RAM on 32-bit systems can cause system instability\n"; badprint "Allocating > 2GB RAM on 32-bit systems can cause system instability\n";
badprint "Maximum possible memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\n"; badprint "Maximum reached memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\n";
} elsif ($mycalc{'pct_physical_memory'} > 85) { } elsif ($mycalc{'pct_physical_memory'} > 85) {
badprint "Maximum possible memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\n"; badprint "Maximum reached memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\n";
} else {
goodprint "Maximum reached memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\n";
}
if ($mycalc{'pct_max_physical_memory'} > 85) {
badprint "Maximum possible memory usage: ".hr_bytes($mycalc{'max_peak_memory'})." ($mycalc{'pct_max_physical_memory'}% of installed RAM)\n";
push(@generalrec,"Reduce your overall MySQL memory footprint for system stability"); push(@generalrec,"Reduce your overall MySQL memory footprint for system stability");
} else { } else {
goodprint "Maximum possible memory usage: ".hr_bytes($mycalc{'total_possible_used_memory'})." ($mycalc{'pct_physical_memory'}% of installed RAM)\n"; goodprint "Maximum possible memory usage: ".hr_bytes($mycalc{'max_peak_memory'})." ($mycalc{'pct_max_physical_memory'}% of installed RAM)\n";
} }
# Slow queries # Slow queries
@ -1355,36 +1376,51 @@ sub mysql_innodb {
} }
} }
# Recommandations for Innodb # Recommandations for MySQL Databases
sub mysql_databases { sub mysql_databases {
if ($opt{dbstat} == 0) { if ($opt{dbstat} == 0) {
return; return;
} }
prettyprint "\n-------- Database Metrics ------------------------------------------------\n"; prettyprint "\n-------- Database Metrics ------------------------------------------------\n";
unless (mysql_version_ge(5,5)) { unless (mysql_version_ge(5,5)) {
infoprint "Skip Database metrics from information schema \n"; infoprint "Skip Database metrics from information schema missing in this version\n";
return; return;
} }
my @dblist=select_array("SHOW DATABASES;"); my @dblist=select_array("SHOW DATABASES;");
infoprint "There is ".scalar(@dblist). " Database(s).\n"; infoprint "There is ".scalar(@dblist). " Database(s).\n";
my @totaldbinfo=split /\s/, select_one("SELECT SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH) FROM information_schema.TABLES"); my @totaldbinfo=split /\s/, select_one("SELECT SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('mysql', 'performance_schema', 'information_schema');");
infoprint "All Databases:\n";
infoprint " +-- ROWS : ".($totaldbinfo[0] eq 'NULL'?0:$totaldbinfo[0])."\n"; infoprint " +-- ROWS : ".($totaldbinfo[0] eq 'NULL'?0:$totaldbinfo[0])."\n";
infoprint " +-- DATA : ".hr_bytes($totaldbinfo[1])."(".percentage($totaldbinfo[1], $totaldbinfo[3])."%)\n"; infoprint " +-- DATA : ".hr_bytes($totaldbinfo[1])."(".percentage($totaldbinfo[1], $totaldbinfo[3])."%)\n";
infoprint " +-- INDEX: ".hr_bytes($totaldbinfo[2])."(".percentage($totaldbinfo[2], $totaldbinfo[3])."%)\n"; infoprint " +-- INDEX: ".hr_bytes($totaldbinfo[2])."(".percentage($totaldbinfo[2], $totaldbinfo[3])."%)\n";
infoprint " +-- SIZE : ".hr_bytes($totaldbinfo[3])."\n"; infoprint " +-- SIZE : ".hr_bytes($totaldbinfo[3])."\n";
badprint "Index size is larger than data size \n" if $totaldbinfo[1]<$totaldbinfo[2]; badprint "Index size is larger than data size \n" if $totaldbinfo[1]<$totaldbinfo[2];
foreach (@dblist) { foreach (@dblist) {
my @dbinfo=split /\s/, select_one("SELECT TABLE_SCHEMA, SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_' GROUP BY TABLE_SCHEMA ORDER BY TABLE_SCHEMA"); chomp($_);
if ( $_ eq "information_schema" or $_ eq "performance_schema" or $_ eq "mysql" ) { next; }
my @dbinfo=split /\s/, select_one("SELECT TABLE_SCHEMA, SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH), COUNT(DISTINCT ENGINE) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_' GROUP BY TABLE_SCHEMA ORDER BY TABLE_SCHEMA");
infoprint "Database: ".$dbinfo[0]."\n"; infoprint "Database: ".$dbinfo[0]."\n";
infoprint " +-- ROWS : ".($dbinfo[1] eq 'NULL'?0:$dbinfo[1])."\n"; infoprint " +-- ROWS : ".(!defined($dbinfo[1]) or $dbinfo[1] eq 'NULL'?0:$dbinfo[1])."\n";
infoprint " +-- DATA : ".hr_bytes($dbinfo[2])."(".percentage($dbinfo[2], $dbinfo[4])."%)\n"; infoprint " +-- DATA : ".hr_bytes($dbinfo[2])."(".percentage($dbinfo[2], $dbinfo[4])."%)\n";
infoprint " +-- INDEX: ".hr_bytes($dbinfo[3])."(".percentage($dbinfo[3], $dbinfo[4])."%)\n"; infoprint " +-- INDEX: ".hr_bytes($dbinfo[3])."(".percentage($dbinfo[3], $dbinfo[4])."%)\n";
infoprint " +-- TOTAL: ".hr_bytes($dbinfo[4])."\n"; infoprint " +-- TOTAL: ".hr_bytes($dbinfo[4])."\n";
badprint "Index size is larger than data size for $dbinfo[0] \n" if $dbinfo[2]<$dbinfo[3]; badprint "Index size is larger than data size for $dbinfo[0] \n" if $dbinfo[2]<$dbinfo[3];
badprint "There ".$dbinfo[5]. " storage engines. Be careful \n" if $dbinfo[5]>1;
} }
} }
# Recommandations for MySQL Databases
sub mysql_indexes {
return if ($opt{idxstat} == 0);
prettyprint "\n-------- Indexes Metrics -------------------------------------------------\n";
unless (mysql_version_ge(5,5)) {
infoprint "Skip Index metrics from information schema missing in this version\n";
return;
}
}
# Take the two recommendation arrays and display them at the end of the output # Take the two recommendation arrays and display them at the end of the output
sub make_recommendations { sub make_recommendations {
prettyprint "\n-------- Recommendations -----------------------------------------------------\n"; prettyprint "\n-------- Recommendations -----------------------------------------------------\n";
@ -1420,6 +1456,7 @@ validate_mysql_version; # Check current MySQL version
check_architecture; # Suggest 64-bit upgrade check_architecture; # Suggest 64-bit upgrade
check_storage_engines; # Show enabled storage engines check_storage_engines; # Show enabled storage engines
mysql_databases; # Show informations about databases mysql_databases; # Show informations about databases
mysql_indexes; # Show informations about indexes
security_recommendations; # Display some security recommendations security_recommendations; # Display some security recommendations
calculations; # Calculate everything we need calculations; # Calculate everything we need
mysql_stats; # Print the server stats mysql_stats; # Print the server stats
@ -1439,7 +1476,7 @@ __END__
=head1 NAME =head1 NAME
MySQLTuner 1.4.5 - MySQL High Performance Tuning Script MySQLTuner 1.4.6 - MySQL High Performance Tuning Script
=head1 IMPORTANT USAGE GUIDELINES =head1 IMPORTANT USAGE GUIDELINES
@ -1475,6 +1512,7 @@ You must provide the remote server's total memory when connecting to other serve
--noinfo Remove informational responses --noinfo Remove informational responses
--debug Print debug information --debug Print debug information
--dbstat Print database information --dbstat Print database information
--idxstat Print index information
--nocolor Don't print output in color --nocolor Don't print output in color
--buffers Print global and per-thread buffer values --buffers Print global and per-thread buffer values