generate performance graph for unicorn
switch to thin
delete graph
Revert "switch to thin"

This reverts commit f3599a28d1080541621709c17491d74d9fb26dda.
Revert "Revert "switch to thin""

This reverts commit fb513114e66febaec7b6e95b5e149dd3c681eee5.
bump up unicorn workers