First login as root on the command line to MySQL:
mysql -u root -p mysql
Enter your mysql root password.
Set the log slow queries variables:
SET GLOBAL slow_query_log = 'ON';
Verify your variables are set properly:
SHOW VARIABLES;
You should have something like this:
slow_query_log | ON
slow_query_log_file | /var/lib/mysql/gp1-slow.log
Now you can check the log file to identify your slow heinous queries!