Cheney on the MTA – never return
pipeline.com2 pointsby jbert0 comments
y = (x + 1) / atan(x) - x;
x = y; // If you're in a loop and updating some value
If you're doing polling, you're actually back at the same pre-webhook place - polling their server on some timescale which is a compromise between latency and load.
Yes, a TCP keepalive is generally cheaper than an HTTP long poll request, but only by a constant factor.