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.
$ python -m SimpleHTTPServer 8000
xiaq
/ quick-sort.elv
Created
October 7, 2016 13:30
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| 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
/ mynetns_run
Created
May 13, 2016 14:27
mynetns_run: Run a program in a seperate network namespace
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| #!/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
/ web-servers.md
Last active
December 10, 2025 10:35
Big list of http static server one-liners
jboner
/ latency.txt
Last active
December 10, 2025 12:19
Latency Numbers Every Programmer Should Know
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| 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 |