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@willurd
willurd / web-servers.md
Last active September 26, 2025 13:35
Big list of http static server one-liners

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
jboner / latency.txt
Last active September 26, 2025 06:53
Latency Numbers Every Programmer Should Know
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
@maxrice
maxrice / us-state-names-abbrevs.php
Created May 23, 2012 18:32
US State Names & Abbreviations as PHP Arrays
<?php
/* From https://www.usps.com/send/official-abbreviations.htm */
$us_state_abbrevs_names = array(
'AL'=>'ALABAMA',
'AK'=>'ALASKA',
'AS'=>'AMERICAN SAMOA',
'AZ'=>'ARIZONA',
'AR'=>'ARKANSAS',