EpiCurl causes CPU spike under heavy usage (reported by @alombarte )

[jmathai]

Debugging information from the server the problem was seen on:

PING twitter.com (128.121.146.228) 56(84) bytes of data.
64 bytes from 128.121.146.228: icmp_seq=1 ttl=240 time=160 ms
64 bytes from 128.121.146.228: icmp_seq=2 ttl=240 time=158 ms
64 bytes from 128.121.146.228: icmp_seq=3 ttl=240 time=162 ms
64 bytes from 128.121.146.228: icmp_seq=4 ttl=240 time=165 ms
64 bytes from 128.121.146.228: icmp_seq=5 ttl=240 time=165 ms

PING search.twitter.com (128.121.146.107) 56(84) bytes of data.
64 bytes from 128.121.146.107: icmp_seq=1 ttl=240 time=171 ms
64 bytes from 128.121.146.107: icmp_seq=2 ttl=240 time=175 ms
64 bytes from 128.121.146.107: icmp_seq=3 ttl=240 time=170 ms
64 bytes from 128.121.146.107: icmp_seq=4 ttl=240 time=175 ms

$ time curl http://twitter.com/statuses/public_timeline.xml
real 0m0.888s
user 0m0.004s
sys 0m0.000s

curl --trace-time http://twitter.com/statuses/public_timeline.xml > test.test
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 18535 100 18535 0 0 8513 0 0:00:02 0:00:02 --:--:-- 9593