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Merge pull request #86 from jmrenouard/master

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Adding check for percentage used buffer pool
This commit is contained in:
Jean-Marie Renouard 2015-07-13 16:59:24 +02:00
commit c1034ed814
1 changed files with 15 additions and 1 deletions
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mysqltuner.pl
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@ -1,5 +1,5 @@
#!/usr/bin/perl -w
# mysqltuner.pl - Version 1.4.7
# mysqltuner.pl - Version 1.4.8
# High Performance MySQL Tuning Script
# Copyright (C) 2006-2015 Major Hayden - major@mhtx.net
#
@ -1036,6 +1036,7 @@ sub calculations {
debugprint "pct_write_efficiency: ".$mycalc{'pct_read_efficiency'}."\n";
debugprint "Innodb_buffer_pool_writes: ".$mystat{'Innodb_buffer_pool_writes'}."\n";
debugprint "Innodb_buffer_pool_write_requests: ".$mystat{'Innodb_buffer_pool_write_requests'}."\n";
$mycalc{'pct_innodb_buffer_used'}=percentage(($mystat{'Innodb_buffer_pool_pages_total'}-$mystat{'Innodb_buffer_pool_pages_free'}), $mystat{'Innodb_buffer_pool_pages_total'}) if defined $mystat{'Innodb_buffer_pool_pages_total'};
# Binlog Cache
if ($myvar{'log_bin'} ne 'OFF') {
@ -1358,6 +1359,12 @@ sub mysql_innodb {
if (defined $myvar{'innodb_log_buffer_size'}) {
infoprint " +-- InnoDB Log Buffer: " . hr_bytes($myvar{'innodb_log_buffer_size'}) . "\n";
}
if (defined $mystat{'Innodb_buffer_pool_pages_free'}) {
infoprint " +-- InnoDB Log Buffer Free: " . hr_bytes($mystat{'Innodb_buffer_pool_pages_free'}) . "\n";
}
if (defined $mystat{'Innodb_buffer_pool_pages_total'}) {
infoprint " +-- InnoDB Log Buffer Used: " . hr_bytes($mystat{'Innodb_buffer_pool_pages_total'}) . "\n";
}
}
# InnoDB Buffer Pull Size
if ($myvar{'innodb_buffer_pool_size'} > $enginestats{'InnoDB'}) {
@ -1395,6 +1402,13 @@ sub mysql_innodb {
}
}
# InnoDB Used Buffer Pool
if (defined $mycalc{'pct_innodb_buffer_used'} && $mycalc{'pct_innodb_buffer_used'} < 80 ) {
badprint "InnoDB Used buffer: ".$mycalc{'pct_innodb_buffer_used'}. "% (".($mystat{'Innodb_buffer_pool_pages_total'} - $mystat{'Innodb_buffer_pool_pages_free'})." used/ ".$mystat{'Innodb_buffer_pool_pages_total'}." total)\n";
} else {
goodprint "InnoDB Used buffer: ".$mycalc{'pct_innodb_buffer_used'}. "% (".($mystat{'Innodb_buffer_pool_pages_total'} - $mystat{'Innodb_buffer_pool_pages_free'})." used/ ".$mystat{'Innodb_buffer_pool_pages_total'}." total)\n";
}
# InnoDB Read efficency
if (defined $mycalc{'pct_read_efficiency'} && $mycalc{'pct_read_efficiency'} < 90 ) {
badprint "InnoDB Read buffer efficiency: ".$mycalc{'pct_read_efficiency'}. "% (".($mystat{'Innodb_buffer_pool_read_requests'} - $mystat{'Innodb_buffer_pool_reads'})." hits/ ".$mystat{'Innodb_buffer_pool_read_requests'}." total)\n";