if ( $s->Innodb_buffer_pool_pages_total > 0 ) {
$ratio = $s->Innodb_buffer_pool_pages_data / $s->Innodb_buffer_pool_pages_total;
if ( $s->Innodb_buffer_pool_pages_total > 0 ) {
$ratio = $s->Innodb_buffer_pool_pages_data / $s->Innodb_buffer_pool_pages_total;