> On 29 Dec 2014, at 03:05, Rob Hoelz (via RT) <[email protected]>
> wrote:
>
> # New Ticket Created by Rob Hoelz
> # Please include the string: [perl #123515]
> # in the subject line of all future correspondence about this issue.
> # <URL: https://rt.perl.org/Ticket/Display.html?id=123515 >
>
>
> See the attached script. When running the script, CPU usage (as reported by
> top) is very high.<supply-cpu-test.p6>
Looking deeper into the code, this appears to be caused by the implementation
of “earliest” (former “winner”), which basically does a Thread.yield():
loop { Thread.yield }
This also eats 100% of one CPU. Not sure whether this is intended behaviour of
Thread.yield or not. Having to use Thread.yield in “earliest” may also be
sub-optimal.
Liz
