jboner

Latency Comparison Numbers (~2012)
----------------------------------
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

mattbaker

This example expects to have d3.min.js and d3.layout.min.js in the same directory as pie.js and pie_serv.js.

Run with node pie_serv.js

rednaxelafx

  1   b   java.lang.String::charAt (33 bytes)
  2   b   java.lang.Math::max (11 bytes)
  3   b   java.util.jar.Manifest$FastInputStream::readLine (167 bytes)
  4   b   sun.nio.cs.UTF_8$Decoder::decodeArrayLoop (553 bytes)
  5   b   java.util.Properties$LineReader::readLine (383 bytes)
  6   b   java.lang.String::hashCode (60 bytes)
  7   b   java.lang.String::indexOf (151 bytes)
  8   b   sun.nio.cs.ext.DoubleByteDecoder::decodeSingle (10 bytes)
  9   b   java.lang.String::lastIndexOf (156 bytes)
 10   b   java.lang.String::replace (142 bytes)