slavivanov

Mozilla/5.0 (compatible; woriobot support [at] worio [dot] com +http://worio.com)
EventMachine HttpClient
MxAgent
Mozilla
Comodo-Certificates-Spider
JS-Kit URL Resolver, http://js-kit.com/
curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Googlebot/2.1 (http://www.googlebot.com/bot.html)
libwww-perl/5.834
Jakarta Commons-HttpClient/3.1

slavivanov

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD