The traffic represented by the hhvm flame graphs is shrinking by the day.
Per T219150, we now have 100% of cookie-capable traffic is on PHP7. Which translated into e.g. yesterday's load.php flame graph into having 4,500 samples from php7-excimer vs 700 samples from hhvm-xenon.
Time to update the shortcuts on https://performance.wikimedia.org/php-profiling/