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Initial verbose explain output configuration (there you go Mike!)

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Major Hayden 2007-06-04 16:31:29 +00:00
parent 4589601af0
commit be69a0063a
1 changed files with 21 additions and 1 deletions
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22
mysqltuner.pl
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@ -3,6 +3,8 @@ use strict;
use warnings; use warnings;
use diagnostics; use diagnostics;
use Getopt::Long; use Getopt::Long;
use Text::Wrap;
$Text::Wrap::columns = 72;
# Set defaults # Set defaults
my %opt = ( my %opt = (
@ -10,6 +12,7 @@ my %opt = (
"nogood" => 0, "nogood" => 0,
"noinfo" => 0, "noinfo" => 0,
"notitle" => 0, "notitle" => 0,
"noexplain" => 0,
); );
# Gather the options from the command line # Gather the options from the command line
@ -18,6 +21,7 @@ GetOptions(\%opt,
'nogood', 'nogood',
'noinfo', 'noinfo',
'notitle', 'notitle',
'noexplain',
'help', 'help',
); );
@ -37,6 +41,7 @@ sub usage {
" --nobad Remove negative/suggestion responses\n". " --nobad Remove negative/suggestion responses\n".
" --noinfo Remove informational responses\n". " --noinfo Remove informational responses\n".
" --notitle Remove section title headers\n". " --notitle Remove section title headers\n".
" --noexplain Remove verbose explanations\n".
"\n"; "\n";
exit; exit;
} }
@ -71,6 +76,13 @@ sub titleprint {
print $text; print $text;
} }
my $exptext;
sub explainprint {
if ($opt{noexplain} == 1) { return 0; }
my $text = shift;
print "\n".wrap("","",$text)."\n\n";
}
my ($physical_memory,$swap_memory,$duflags); my ($physical_memory,$swap_memory,$duflags);
sub os_setup { sub os_setup {
my $os = `uname`; my $os = `uname`;
@ -305,11 +317,19 @@ sub check_memory {
if ($pct_physical_memory > 85) { if ($pct_physical_memory > 85) {
badprint "DANGER - MySQL is configured to use $pct_physical_memory% (".hr_bytes($total_memory). badprint "DANGER - MySQL is configured to use $pct_physical_memory% (".hr_bytes($total_memory).
") of physical memory (".hr_bytes($physical_memory).")\n"; ") of physical memory (".hr_bytes($physical_memory).")\n";
$exptext = "Your current memory settings are dangerous as they exceed the maximum amount of memory on your ".
"server if it was running at full capacity. By reducing your current memory usage, you will decrease the ".
"chances of out of memory errors and general instability.";
} else { } else {
goodprint "MySQL is configured to use $pct_physical_memory% (".hr_bytes($total_memory). goodprint "MySQL is configured to use $pct_physical_memory% (".hr_bytes($total_memory).
") of physical memory (".hr_bytes($physical_memory).")\n"; ") of physical memory (".hr_bytes($physical_memory).")\n";
$exptext = "Your current memory settings are reasonable as they do not exceed the maximum amount of memory on ".
"your server. If you find that this script suggests increasing buffers in later tests, you have additional memory ".
"available for the expansion of those buffers.";
} }
infoprint "This memory total above is when MySQL is at absolute full load\n"; explainprint "The above calculations show MySQL's memory usage at full capacity. ".
"This means that all connections are at their maximum with all buffers being fully used. ".$exptext;
} }
sub check_slow_queries { sub check_slow_queries {