Generate 2.5.2 sub version at 2024-02-06T17:58:35+01:00

Author: jmrenouard

USAGE.md

@@ -1,6 +1,6 @@
 # NAME
 
-    MySQLTuner 2.5.1 - MySQL High Performance Tuning Script
+    MySQLTuner 2.5.2 - MySQL High Performance Tuning Script
 
 # IMPORTANT USAGE GUIDELINES
 

mysqltuner.pl

@@ -1,5 +1,4 @@
-#!/usr/bin/env perl
-# mysqltuner.pl - Version 2.5.1
+# mysqltuner.pl - Version 2.5.2
 # High Performance MySQL Tuning Script
 # Copyright (C) 2015-2023 Jean-Marie Renouard - [email protected]
 # Copyright (C) 2006-2023 Major Hayden - [email protected]
@@ -57,7 +56,7 @@ package main;
 #use Env;
 
 # Set up a few variables for use in the script
-my $tunerversion = "2.5.1";
+my $tunerversion = "2.5.2";
 my ( @adjvars, @generalrec );
 
 # Set defaults
@@ -197,7 +196,7 @@ package main;
 $opt{pass} = $opt{password} if ( $opt{pass} eq 0 and $opt{password} ne 0 );
 
 if ( $opt{dumpdir} ne '' ) {
-    $opt{dumpdir} = abs_path( $opt{dumpdir} );
+    $opt{dumpdir}= abs_path($opt{dumpdir});
     if ( !-d $opt{dumpdir} ) {
         mkdir $opt{dumpdir} or die "Cannot create directory $opt{dumpdir}: $!";
     }
@@ -2526,7 +2525,7 @@ sub check_architecture {
     }
     elsif ( `uname` =~ /Darwin/ && `uname -m` =~ /x86_64/ ) {
 
-# Darwin gibas.local 12.5.1 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64
+# Darwin gibas.local 12.5.2 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64
         $arch = 64;
         goodprint "Operating on 64-bit architecture";
     }
@@ -3211,6 +3210,11 @@ sub calculations {
         $mystat{'Innodb_buffer_pool_pages_total'}
     ) if defined $mystat{'Innodb_buffer_pool_pages_total'};
 
+    $mycalc{'innodb_buffer_alloc_pct'}=select_one(
+       "select  round( 100* sum(allocated)/( select VARIABLE_VALUE ".
+     "FROM performance_schema.global_variables " .
+           "WHERE VARIABLE_NAME='innodb_buffer_pool_size' ) ,2)".
+          'FROM sys.x\$innodb_buffer_stats_by_table;');
     # Binlog Cache
     if ( $myvar{'log_bin'} ne 'OFF' ) {
         $mycalc{'pct_binlog_cache'} = percentage(
@@ -6355,46 +6359,60 @@ sub mysql_innodb {
               . hr_bytes( $enginestats{'InnoDB'} )
               . ") if possible." );
     }
+
+    # select  round( 100* sum(allocated)/( select VARIABLE_VALUE 
+    #                                  FROM performance_schema.global_variables 
+    #                              where VARIABLE_NAME='innodb_buffer_pool_size' )
+    # ,2) as "PCT ALLOC/BUFFER POOL" 
+    #from sys.x$innodb_buffer_stats_by_table;
+
+    if ($mycalc{innodb_buffer_alloc_pct} < 80) {
+      badprint "Ratio Buffer Pool allocated / Buffer Pool Size: ".
+      $mycalc{'innodb_buffer_alloc_pct'} . '%';
+    } else {
+      goodprint "Ratio Buffer Pool allocated / Buffer Pool Size: ".
+      $mycalc{'innodb_buffer_alloc_pct'} . '%';
+    }
     if (   $mycalc{'innodb_log_size_pct'} < 20
         or $mycalc{'innodb_log_size_pct'} > 30 )
     {
-        if ( defined $myvar{'innodb_redo_log_capacity'} ) {
-            badprint
-              "Ratio InnoDB redo log capacity / InnoDB Buffer pool size ("
-              . $mycalc{'innodb_log_size_pct'} . "%): "
-              . hr_bytes( $myvar{'innodb_redo_log_capacity'} ) . " / "
-              . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
-              . " should be equal to 25%";
-            push( @adjvars,
-                    "innodb_redo_log_capacity should be (="
-                  . hr_bytes_rnd( $myvar{'innodb_buffer_pool_size'} / 4 )
-                  . ") if possible, so InnoDB Redo log Capacity equals 25% of buffer pool size."
-            );
-            push( @generalrec,
-"Be careful, increasing innodb_redo_log_capacity means higher crash recovery mean time"
-            );
-        }
-        else {
-            badprint "Ratio InnoDB log file size / InnoDB Buffer pool size ("
-              . $mycalc{'innodb_log_size_pct'} . "%): "
-              . hr_bytes( $myvar{'innodb_log_file_size'} ) . " * "
-              . $myvar{'innodb_log_files_in_group'} . " / "
-              . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
-              . " should be equal to 25%";
-            push(
-                @adjvars,
-                "innodb_log_file_size should be (="
-                  . hr_bytes_rnd(
-                    $myvar{'innodb_buffer_pool_size'} /
-                      $myvar{'innodb_log_files_in_group'} / 4
-                  )
-                  . ") if possible, so InnoDB total log file size equals 25% of buffer pool size."
-            );
-            push( @generalrec,
-"Be careful, increasing innodb_log_file_size / innodb_log_files_in_group means higher crash recovery mean time"
-            );
-        }
-        if ( mysql_version_le( 5, 6, 2 ) ) {
+      if ( defined $myvar{'innodb_redo_log_capacity'} ) {
+        badprint
+        "Ratio InnoDB redo log capacity / InnoDB Buffer pool size ("
+          . $mycalc{'innodb_log_size_pct'} . "%): "
+        . hr_bytes( $myvar{'innodb_redo_log_capacity'} ) . " / "
+        . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
+        . " should be equal to 25%";
+        push( @adjvars,
+          "innodb_redo_log_capacity should be (="
+            . hr_bytes_rnd( $myvar{'innodb_buffer_pool_size'} / 4 )
+            . ") if possible, so InnoDB Redo log Capacity equals 25% of buffer pool size."
+        );
+        push( @generalrec,
+          "Be careful, increasing innodb_redo_log_capacity means higher crash recovery mean time"
+        );
+      }
+      else {
+        badprint "Ratio InnoDB log file size / InnoDB Buffer pool size ("
+          . $mycalc{'innodb_log_size_pct'} . "%): "
+        . hr_bytes( $myvar{'innodb_log_file_size'} ) . " * "
+        . $myvar{'innodb_log_files_in_group'} . " / "
+        . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
+        . " should be equal to 25%";
+        push(
+          @adjvars,
+          "innodb_log_file_size should be (="
+            . hr_bytes_rnd(
+              $myvar{'innodb_buffer_pool_size'} /
+              $myvar{'innodb_log_files_in_group'} / 4
+            )
+            . ") if possible, so InnoDB total log file size equals 25% of buffer pool size."
+        );
+        push( @generalrec,
+          "Be careful, increasing innodb_log_file_size / innodb_log_files_in_group means higher crash recovery mean time"
+        );
+      }
+    if ( mysql_version_le( 5, 6, 2 ) ) {
             push( @generalrec,
 "For MySQL 5.6.2 and lower, total innodb_log_file_size should have a ceiling of (4096MB / log files in group) - 1MB."
             );
@@ -7371,7 +7389,7 @@ sub which {
 
 =head1 NAME
 
- MySQLTuner 2.5.1 - MySQL High Performance Tuning Script
+ MySQLTuner 2.5.2 - MySQL High Performance Tuning Script
 
 =head1 IMPORTANT USAGE GUIDELINES