SQL for measuring binlog group commit efficiency

gistfile1.txt

-- (run this all at once)
set @binlog_commits_1 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_commits'); 
set @binlog_group_commits_1 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_group_commits');
set @trigger_count_1 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_group_commit_trigger_count');
set @trigger_timeout_1 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_group_commit_trigger_timeout'); 
select sleep(60); 
set @binlog_commits_2 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_commits');
set @binlog_group_commits_2 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_group_commits');
set @trigger_count_2 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_group_commit_trigger_count');
set @trigger_timeout_2 = (select variable_value from information_schema.global_status where variable_Name = 'Binlog_group_commit_trigger_timeout'); 
select (@binlog_group_commits_2 - @binlog_group_commits_1) as group_commits, (@binlog_commits_2 - @binlog_commits_1) as commits,  @trigger_count_2 - @trigger_count_1 as trigger_count,  @trigger_timeout_2 - @trigger_timeout_1 as trigger_timeout;