opening sockets and cpu usage
dsc at swcp.com
Tue Aug 10 16:26:03 EDT 2004
On Aug 10, 2004, at 12:01 PM, Wouter wrote:
> To simplify the question:
> if a socket is opened like in:
> open socket to "127.0.0.0:8080" with message "gotit"
> with rev engine 2.6 and before, the cpu usage is slowly but steadily
> (and faster if there are connections)
> with rev engine 2.6.1 it jumps at once to about 85 % cpu usage
I ran a test with a similar open.
But to test it I used 'accept' and at that point my usage jumped to
about 98% to 103% (of a possible 200% with two processors). The open
did not add more usage that I could tell.
Then I closed the accept, leaving the connection open. It stayed up
near 100%. When I close from the passive (server) end, Revolution
usage drops to almost 0.
It looks like a bad thread is running when any socket is open. It
might be polling.
This looks like bugzilla food to me.
I'm on OS X 10.3.4 with dual 1.25 GHz processors.
Oh, don't test using a default button. For me, that causes usage to
jump up 27%.
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