Continuous Process creation
David N. Smith (IBM)
dnsmith at watson.ibm.com
Wed Oct 6 19:05:07 UTC 1999
Process>>#forContext:priority:, the method that creates processes,
seems to get called about 250 times per second to create a process
which is immediately thrown away. The calls seem to be coming from
ProcessScheduler>>#yield which creates a process to signal a new
Semaphore. Here is the code:
yield
"Give other Processes at the current priority a chance to run."
| semaphore |
semaphore _ Semaphore new.
[semaphore signal] fork.
semaphore wait
It looks like a cute trick, but I'm wondering what the 250 new
processes per second (on my old PPC 9500/200) do to garbage
collection and processor usage. The #yield messages seem to be
constantly sent by controllers and I'm in a MVC world (because that's
what runs on tiny processors).
Dave
_______________________________
David N. Smith
IBM T J Watson Research Center
Hawthorne, NY
_______________________________
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herein are those of the author
and not of his employer.
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