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Adding read/write innodb buffer efficiency indicators.

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root 2015-07-01 21:07:58 +02:00
parent 731fe6908d
commit ea93fe3116
1 changed files with 70 additions and 15 deletions
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mysqltuner.pl
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@ -158,7 +158,7 @@ $opt{nocolor} = 1 if defined($reportfile);
my $good = ($opt{nocolor} == 0)? "[\e[0;32mOK\e[0m]" : "[OK]" ; my $good = ($opt{nocolor} == 0)? "[\e[0;32mOK\e[0m]" : "[OK]" ;
my $bad = ($opt{nocolor} == 0)? "[\e[0;31m!!\e[0m]" : "[!!]" ; my $bad = ($opt{nocolor} == 0)? "[\e[0;31m!!\e[0m]" : "[!!]" ;
my $info = ($opt{nocolor} == 0)? "[\e[0;34m--\e[0m]" : "[--]" ; my $info = ($opt{nocolor} == 0)? "[\e[0;34m--\e[0m]" : "[--]" ;
my $deb = ($opt{nocolor} == 0)? "[\e[0;31mDEBUG\e[0m]" : "[DEBUG]" ; my $deb = ($opt{nocolor} == 0)? "[\e[0;31mDG\e[0m]" : "[DG]" ;
# Functions that handle the print styles # Functions that handle the print styles
sub prettyprint { sub prettyprint {
@ -506,6 +506,7 @@ sub get_basic_passwords {
sub security_recommendations { sub security_recommendations {
prettyprint "\n-------- Security Recommendations -------------------------------------------\n"; prettyprint "\n-------- Security Recommendations -------------------------------------------\n";
# Looking for Anonymous users # Looking for Anonymous users
my @mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL ;"`; my @mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL ;"`;
if (@mysqlstatlist) { if (@mysqlstatlist) {
@ -610,7 +611,7 @@ sub get_replication_status {
my ($mysqlvermajor,$mysqlverminor); my ($mysqlvermajor,$mysqlverminor);
sub validate_mysql_version { sub validate_mysql_version {
($mysqlvermajor,$mysqlverminor) = $myvar{'version'} =~ /(\d+)\.(\d+)/; ($mysqlvermajor,$mysqlverminor) = $myvar{'version'} =~ /(\d+)\.(\d+)/;
if (!mysql_version_ge(5)) { if (!mysql_version_ge(5,1)) {
badprint "Your MySQL version ".$myvar{'version'}." is EOL software! Upgrade soon!\n"; badprint "Your MySQL version ".$myvar{'version'}." is EOL software! Upgrade soon!\n";
} elsif (mysql_version_ge(6)) { } elsif (mysql_version_ge(6)) {
badprint "Currently running unsupported MySQL version ".$myvar{'version'}."\n"; badprint "Currently running unsupported MySQL version ".$myvar{'version'}."\n";
@ -866,11 +867,19 @@ sub calculations {
} else { } else {
$mycalc{'pct_key_buffer_used'} = 0; $mycalc{'pct_key_buffer_used'} = 0;
} }
if ($mystat{'Key_read_requests'} > 0) { if ($mystat{'Key_read_requests'} > 0) {
$mycalc{'pct_keys_from_mem'} = sprintf("%.1f",(100 - (($mystat{'Key_reads'} / $mystat{'Key_read_requests'}) * 100))); $mycalc{'pct_keys_from_mem'} = sprintf("%.1f",(100 - (($mystat{'Key_reads'} / $mystat{'Key_read_requests'}) * 100)));
} else { } else {
$mycalc{'pct_keys_from_mem'} = 0; $mycalc{'pct_keys_from_mem'} = 0;
} }
if ($mystat{'Key_write_requests'} > 0) {
$mycalc{'pct_wkeys_from_mem'} = sprintf("%.1f",(100 - (($mystat{'Key_writes'} / $mystat{'Key_write_requests'}) * 100)));
} else {
$mycalc{'pct_wkeys_from_mem'} = 0;
}
if ($doremote eq 0 and !mysql_version_ge(5)) { if ($doremote eq 0 and !mysql_version_ge(5)) {
my $size = 0; my $size = 0;
$size += (split)[0] for `find $myvar{'datadir'} -name "*.MYI" 2>&1 | xargs du -L $duflags 2>&1`; $size += (split)[0] for `find $myvar{'datadir'} -name "*.MYI" 2>&1 | xargs du -L $duflags 2>&1`;
@ -960,6 +969,16 @@ sub calculations {
if ($myvar{'have_innodb'} eq "YES") { if ($myvar{'have_innodb'} eq "YES") {
$mycalc{'innodb_log_size_pct'} = ($myvar{'innodb_log_file_size'} * 100 / $myvar{'innodb_buffer_pool_size'}); $mycalc{'innodb_log_size_pct'} = ($myvar{'innodb_log_file_size'} * 100 / $myvar{'innodb_buffer_pool_size'});
} }
($mystat{'Innodb_buffer_pool_read_requests'}, $mystat{'Innodb_buffer_pool_reads'})=(1,1) unless defined $mystat{'Innodb_buffer_pool_reads'};
$mycalc{'pct_read_efficiency'}=percentage($mystat{'Innodb_buffer_pool_reads'}/$mystat{'Innodb_buffer_pool_read_requests'}) if defined $mystat{'Innodb_buffer_pool_read_requests'};
debugprint "pct_read_efficiency: ".$mycalc{'pct_read_efficiency'}."\n";
debugprint "Innodb_buffer_pool_reads: ".$mystat{'Innodb_buffer_pool_reads'}."\n";
debugprint "Innodb_buffer_pool_read_requests: ".$mystat{'Innodb_buffer_pool_read_requests'}."\n";
($mystat{'Innodb_buffer_pool_write_requests'}, $mystat{'Innodb_buffer_pool_writes'})=(1,1) unless defined $mystat{'Innodb_buffer_pool_writes'};
$mycalc{'pct_write_efficiency'}=percentage($mystat{'Innodb_buffer_pool_writes'}/$mystat{'Innodb_buffer_pool_write_requests'}) if defined $mystat{'Innodb_buffer_pool_write_requests'};
debugprint "pct_write_efficiency: ".$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";
# Binlog Cache # Binlog Cache
if ($myvar{'log_bin'} ne 'OFF') { if ($myvar{'log_bin'} ne 'OFF') {
@ -1049,6 +1068,18 @@ sub mysql_stats {
goodprint "Aborded connections: $mycalc{'pct_connections_aborted'}% ($mystat{'Aborted_connects'}/$mystat{'Connections'})\n"; goodprint "Aborded connections: $mycalc{'pct_connections_aborted'}% ($mystat{'Aborted_connects'}/$mystat{'Connections'})\n";
} }
# Key buffer usage
if (defined($mycalc{'pct_key_buffer_used'})) {
if ($mycalc{'pct_key_buffer_used'} < 90) {
badprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% (".hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100)." used / ".hr_num($myvar{'key_buffer_size'})." cache)\n";
push(@adjvars,"key_buffer_size (\~ ".hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100).")");
} else {
goodprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% (".hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100)." used / ".hr_num($myvar{'key_buffer_size'})." cache)\n";
}
} else {
# No queries have run that would use keys
debugprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% (".hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100)." used / ".hr_num($myvar{'key_buffer_size'})." cache)\n";
}
# Key buffer # Key buffer
if (!defined($mycalc{'total_myisam_indexes'}) and $doremote == 1) { if (!defined($mycalc{'total_myisam_indexes'}) and $doremote == 1) {
push(@generalrec,"Unable to calculate MyISAM indexes on remote MySQL server < 5.0.0"); push(@generalrec,"Unable to calculate MyISAM indexes on remote MySQL server < 5.0.0");
@ -1065,12 +1096,23 @@ sub mysql_stats {
} }
if ($mystat{'Key_read_requests'} > 0) { if ($mystat{'Key_read_requests'} > 0) {
if ($mycalc{'pct_keys_from_mem'} < 95) { 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"; badprint "Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% (".hr_num($mystat{'Key_read_requests'})." cached / ".hr_num($mystat{'Key_reads'})." reads)\n";
} else { } 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"; goodprint "Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% (".hr_num($mystat{'Key_read_requests'})." cached / ".hr_num($mystat{'Key_reads'})." reads)\n";
} }
} else { } else {
# No queries have run that would use keys # No queries have run that would use keys
debugprint "Key buffer size / total MyISAM indexes: ".hr_bytes($myvar{'key_buffer_size'})."/".hr_bytes($mycalc{'total_myisam_indexes'})."\n";
}
if ($mystat{'Key_write_requests'} > 0) {
if ($mycalc{'pct_wkeys_from_mem'} < 95) {
badprint "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% (".hr_num($mystat{'Key_write_requests'})." cached / ".hr_num($mystat{'Key_writes'})." writes)\n";
} else {
goodprint "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% (".hr_num($mystat{'Key_write_requests'})." cached / ".hr_num($mystat{'Key_writes'})." writes)\n";
}
} else {
# No queries have run that would use keys
debugprint "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% (".hr_num($mystat{'Key_write_requests'})." cached / ".hr_num($mystat{'Key_writes'})." writes)\n";
} }
} }
@ -1202,20 +1244,19 @@ sub mysql_stats {
# Binlog cache # Binlog cache
if (defined $mycalc{'pct_binlog_cache'}) { if (defined $mycalc{'pct_binlog_cache'}) {
infoprint "Binlog cache memory access: ".$mycalc{'pct_binlog_cache'} ."% ( ".($mystat{'Binlog_cache_use'}-$mystat{'Binlog_cache_disk_use'})." Memory / ".$mystat{'Binlog_cache_use'}." Total)\n";
if ($mycalc{'pct_binlog_cache'} < 90 && $mystat{'Binlog_cache_use'}>0 ) { if ($mycalc{'pct_binlog_cache'} < 90 && $mystat{'Binlog_cache_use'}>0 ) {
badprint "Binlog cache access for memory: ".$mycalc{'pct_binlog_cache'}."% (should be >90%)\n"; badprint "Binlog cache memory access: ".$mycalc{'pct_binlog_cache'}."% ( ".($mystat{'Binlog_cache_use'}-$mystat{'Binlog_cache_disk_use'})." Memory / ".$mystat{'Binlog_cache_use'}." Total)\n";
push(@generalrec,"Increase binlog_cache_size (Actual value: ".$myvar{'binlog_cache_size'}.") "); push(@generalrec,"Increase binlog_cache_size (Actual value: ".$myvar{'binlog_cache_size'}.") ");
push(@adjvars,"binlog_cache_size (".hr_bytes($myvar{'binlog_cache_size'})." + 16K ) "); push(@adjvars,"binlog_cache_size (".hr_bytes($myvar{'binlog_cache_size'}+16*1024*1024)." ) ");
} else { } else {
goodprint "Binlog cache access from memory cache: ". $mycalc{'pct_binlog_cache'}."% \n"; goodprint "Binlog cache memory access: ". $mycalc{'pct_binlog_cache'}."% ( ".($mystat{'Binlog_cache_use'}-$mystat{'Binlog_cache_disk_use'})." Memory / ".$mystat{'Binlog_cache_use'}." Total)\n";
infoprint "Not enought data to validate binlog cache size\n" if $mystat{'Binlog_cache_use'}<10; debugprint "Not enought data to validate binlog cache size\n" if $mystat{'Binlog_cache_use'}<10;
} }
} }
# Performance options # Performance options
if (!mysql_version_ge(4, 1)) { if (!mysql_version_ge(5, 1)) {
push(@generalrec,"Upgrade to MySQL 4.1+ to use concurrent MyISAM inserts"); push(@generalrec,"Upgrade to MySQL 5.5+ to use asynchrone write");
} elsif ($myvar{'concurrent_insert'} eq "OFF") { } elsif ($myvar{'concurrent_insert'} eq "OFF") {
push(@generalrec,"Enable concurrent_insert by setting it to 'ON'"); push(@generalrec,"Enable concurrent_insert by setting it to 'ON'");
} elsif ($myvar{'concurrent_insert'} eq 0) { } elsif ($myvar{'concurrent_insert'} eq 0) {
@ -1260,7 +1301,7 @@ sub mysql_innodb {
goodprint "InnoDB buffer pool / data size: ".hr_bytes($myvar{'innodb_buffer_pool_size'})."/".hr_bytes($enginestats{'InnoDB'})."\n"; goodprint "InnoDB buffer pool / data size: ".hr_bytes($myvar{'innodb_buffer_pool_size'})."/".hr_bytes($enginestats{'InnoDB'})."\n";
} else { } else {
badprint "InnoDB buffer pool / data size: ".hr_bytes($myvar{'innodb_buffer_pool_size'})."/".hr_bytes($enginestats{'InnoDB'})."\n"; badprint "InnoDB buffer pool / data size: ".hr_bytes($myvar{'innodb_buffer_pool_size'})."/".hr_bytes($enginestats{'InnoDB'})."\n";
push(@adjvars,"innodb_buffer_pool_size (>= ".hr_bytes_rnd($enginestats{'InnoDB'}).")"); push(@adjvars,"innodb_buffer_pool_size (>= ".hr_bytes_rnd($enginestats{'InnoDB'}).") if possible.");
} }
# InnoDB Buffer Pull Instances (MySQL 5.6.6+) # InnoDB Buffer Pull Instances (MySQL 5.6.6+)
@ -1291,12 +1332,26 @@ sub mysql_innodb {
} }
} }
# InnoDB Read efficency
if (defined $mycalc{'pct_read_efficiency'} && $mycalc{'pct_read_efficiency'} < 90 ) {
badprint "InnoDB Read buffer efficiency: ".$mycalc{'pct_read_efficiency'}. "% (".$mystat{'Innodb_buffer_pool_reads'}." hits/ ".$mystat{'Innodb_buffer_pool_read_requests'}." total)\n";
} else {
goodprint "InnoDB Read buffer efficiency: ".$mycalc{'pct_read_efficiency'}. "% (".$mystat{'Innodb_buffer_pool_reads'}." hits/ ".$mystat{'Innodb_buffer_pool_read_requests'}." total)\n";
}
# InnoDB Write efficency
if (defined $mycalc{'pct_write_efficiency'} && $mycalc{'pct_write_efficiency'} < 90 ) {
badprint "InnoDB Write buffer efficiency: ".$mycalc{'pct_write_efficiency'}. "% (".$mystat{'Innodb_buffer_pool_writes'}." hits/ ".$mystat{'Innodb_buffer_pool_write_requests'}." total)\n";
} else {
goodprint "InnoDB Write buffer efficiency: ".$mycalc{'pct_write_efficiency'}. "% (".$mystat{'Innodb_buffer_pool_writes'}." hits/ ".$mystat{'Innodb_buffer_pool_write_requests'}." total)\n";
}
# InnoDB Log Waits # InnoDB Log Waits
if (defined $mystat{'Innodb_log_waits'} && $mystat{'Innodb_log_waits'} > 0) { if (defined $mystat{'Innodb_log_waits'} && $mystat{'Innodb_log_waits'} > 0) {
badprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'}; badprint "InnoDB log waits: ".percentage($mystat{'Innodb_log_waits'}, $mystat{'Innodb_log_writes'})."% (".$mystat{'Innodb_log_waits'}. " waits / ".$mystat{'Innodb_log_writes'}." writes)\n";
push(@adjvars,"innodb_log_buffer_size (>= ".hr_bytes_rnd($myvar{'innodb_log_buffer_size'}).")"); push(@adjvars,"innodb_log_buffer_size (>= ".hr_bytes_rnd($myvar{'innodb_log_buffer_size'}).")");
} else { } else {
goodprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'}."\n"; goodprint "InnoDB log waits: ".percentage($mystat{'Innodb_log_waits'}, $mystat{'Innodb_log_writes'})."% (".$mystat{'Innodb_log_waits'}. " waits / ".$mystat{'Innodb_log_writes'}." writes)\n";
} }
} }