diff options
Diffstat (limited to 'maintenance/storage/storageTypeStats.php')
-rw-r--r-- | maintenance/storage/storageTypeStats.php | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/maintenance/storage/storageTypeStats.php b/maintenance/storage/storageTypeStats.php new file mode 100644 index 00000000..85858620 --- /dev/null +++ b/maintenance/storage/storageTypeStats.php @@ -0,0 +1,98 @@ +<?php + +require_once( dirname(__FILE__).'/../Maintenance.php' ); + +class StorageTypeStats extends Maintenance { + function execute() { + $dbr = wfGetDB( DB_SLAVE ); + + $endId = $dbr->selectField( 'text', 'MAX(old_id)', false, __METHOD__ ); + if ( !$endId ) { + echo "No text rows!\n"; + exit( 1 ); + } + + $rangeStart = 0; + $binSize = intval( pow( 10, floor( log10( $endId ) ) - 3 ) ); + if ( $binSize < 100 ) { + $binSize = 100; + } + echo "Using bin size of $binSize\n"; + + $stats = array(); + + $classSql = <<<SQL + IF(old_flags LIKE '%external%', + IF(old_text REGEXP '^DB://[[:alnum:]]+/[0-9]+/[0-9a-f]{32}$', + 'CGZ pointer', + IF(old_text REGEXP '^DB://[[:alnum:]]+/[0-9]+/[0-9]{1,6}$', + 'DHB pointer', + IF(old_text REGEXP '^DB://[[:alnum:]]+/[0-9]+$', + 'simple pointer', + 'UNKNOWN pointer' + ) + ) + ), + IF(old_flags LIKE '%object%', + TRIM('"' FROM SUBSTRING_INDEX(SUBSTRING_INDEX(old_text, ':', 3), ':', -1)), + '[none]' + ) + ) +SQL; + + for ( $rangeStart = 0; $rangeStart < $endId; $rangeStart += $binSize ) { + if ( $rangeStart / $binSize % 10 == 0 ) { + echo "$rangeStart\r"; + } + $res = $dbr->select( + 'text', + array( + 'old_flags', + "$classSql AS class", + 'COUNT(*) as count', + ), + array( + 'old_id >= ' . intval( $rangeStart ), + 'old_id < ' . intval( $rangeStart + $binSize ) + ), + __METHOD__, + array( 'GROUP BY' => 'old_flags, class' ) + ); + + foreach ( $res as $row ) { + $flags = $row->old_flags; + if ( $flags === '' ) { + $flags = '[none]'; + } + $class = $row->class; + $count = $row->count; + if ( !isset( $stats[$flags][$class] ) ) { + $stats[$flags][$class] = array( + 'count' => 0, + 'first' => $rangeStart, + 'last' => 0 + ); + } + $entry =& $stats[$flags][$class]; + $entry['count'] += $count; + $entry['last'] = max( $entry['last'], $rangeStart + $binSize ); + unset( $entry ); + } + } + echo "\n\n"; + + $format = "%-29s %-39s %-19s %-29s\n"; + printf( $format, "Flags", "Class", "Count", "old_id range" ); + echo str_repeat( '-', 120 ) . "\n"; + foreach ( $stats as $flags => $flagStats ) { + foreach ( $flagStats as $class => $entry ) { + printf( $format, $flags, $class, $entry['count'], + sprintf( "%-13d - %-13d", $entry['first'], $entry['last'] ) ); + } + } + } +} + +$maintClass = 'StorageTypeStats'; +require_once( DO_MAINTENANCE ); + |