55a64ab8_PHP__Statistics___Manual_mysqlnd_statistics__Result_Set_Description
[Statistic] rows_fetched_from_server_normal, rows_fetched_from_server_ps [Scope] Connection [Notes] See also packets_received_rset_row [Description] 
Total number of result set rows successfully fetched from MySQL regardless if the client application has consumed them or not. Some of the rows may not have been fetched by the client application but have been flushed implicitly.
PHP: Statistics - Manual
Description