luojiyin1987

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

luojiyin1987

upstream gitlab {
  server                    172.17.42.1:10080 fail_timeout=0;
}

# let gitlab deal with the redirection
server {
  listen                    80;
  server_name               git.example.com;
  server_tokens             off;
  root                      /dev/null;