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Added stats

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In view of query, added 3rd tab (HTML, TEXT) - STATS.

This shows list of all different node types with their repetition count,
summarized time, and percent of total query time, plus similar per table
stats.
This commit is contained in:
Hubert depesz Lubaczewski
2011-07-13 02:29:41 +02:00
parent a5fc1f2544
commit b239a3b5ca
4 changed files with 122 additions and 5 deletions
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27
lib/Explain/Controller.pm
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@ -111,9 +111,34 @@ sub show {
return $self->redirect_to( 'new-explain' );
}
# Get stats from plan
my $stats = { 'tables' => {} };
my @elements = ( $explain->top_node );
while ( my $e = shift @elements ) {
push @elements, values ${ $e->ctes } if $e->{ 'ctes' };
push @elements, @{ $e->sub_nodes } if $e->sub_nodes;
push @elements, @{ $e->initplans } if $e->initplans;
push @elements, @{ $e->subplans } if $e->subplans;
$stats->{'nodes'}->{ $e->type }->{'count'}++;
$stats->{'nodes'}->{ $e->type }->{'time'}+=$e->total_exclusive_time if $e->total_exclusive_time;
next unless $e->scan_on;
next unless $e->scan_on->{ 'table_name' };
$stats->{ 'tables' }->{ $e->scan_on->{ 'table_name' } } ||= {};
my $S = $stats->{ 'tables' }->{ $e->scan_on->{ 'table_name' } };
$S->{ $e->{ 'type' } }->{ 'count' }++;
$S->{ ':total' }->{ 'count' }++;
if ( defined( my $t = $e->total_exclusive_time ) ) {
$S->{ $e->type }->{ 'time' } += $t;
$S->{ ':total' }->{ 'time' } += $t;
}
}
# put explain and title to stash
$self->stash->{ explain } = $explain;
$self->stash->{ title } = $title;
$self->stash->{ title } = $title;
$self->stash->{ stats } = $stats;
# render will be called automatically
return;