On 10/01/2010 05:11 PM, Michael Van Canneyt wrote:
Define excessive polling ?
IMHO, any "dump" polling is excessive. IMHO, a decent method needs to
"sleep" most of the time in a polling cycle (not generating CPU or
network traffic) and the asynchronous event needs to "wake" the process.
This is the only way to provide both low latency and low overhead.
I thought like you, 12 years ago. Till reality kicked in. Faulty
switches,
company firewalls and whatnot. Not all servers/firewalls support HTTP 1.1
(for a persistent connection) etc. Too many problems.
Yep ! HTTP is essentially not suitable for this. You would be much
better off using normal bidirectional TCP/IP communication. It's only
because of the dump IP departments that this silly http add-ons are
necessary.
-Michael
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