xiaq

fn quick-sort [li]{
  if <= (count $li) 1; then
    put $@li
  else
    quick-sort [(each { if <= $0 $li[0]; then put $0; fi } $li[1:])]
    put $li[0]
    quick-sort [(each { if > $0 $li[0]; then put $0; fi} $li[1:])]
  fi
}

lilydjwg

#!/bin/bash -e

NETNS_FILE=/var/run/netns/mynet
MNTNS_FILE=/var/run/ns/mynet_mnt

if [[ ! -f $NETNS_FILE ]]; then
  ip netns add mynet

  ip link add mynet0 type veth peer name mynet1
  ip link set mynet0 up

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

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