Result
Unfortunately, no history for this test is available.
Code
The first test, "fcall", was:
/* function do_something() { for ($i = 0; $i < 20; $i++) $GLOBALS['dummy'] + $i; } */ do_something();
The second test, "no fcall", was:
for ($i = 0; $i < 20; $i++) $GLOBALS['dummy'] + $i;