Let's have some command-line fun with curl, [jq][1], and the [new GitHub Search API][2].
Today we're looking for:
Let's have some command-line fun with curl, [jq][1], and the [new GitHub Search API][2].
Today we're looking for:
################################################################################ | |
# showdata.py | |
# | |
# Display analog data from Arduino using Python (matplotlib) | |
# | |
# electronut.in | |
# | |
################################################################################ | |
import sys, serial |
#!/bin/bash | |
# bash generate random alphanumeric string | |
# | |
# bash generate random 32 character alphanumeric string (upper and lowercase) and | |
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1) | |
# bash generate random 32 character alphanumeric string (lowercase only) | |
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1 |
http { | |
proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=one:8m max_size=3000m inactive=600m; | |
proxy_temp_path /var/tmp; | |
include mime.types; | |
default_type application/octet-stream; | |
sendfile on; | |
keepalive_timeout 65; | |
gzip on; | |
gzip_comp_level 6; |
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 |
As configured in my dotfiles.
start new:
tmux
start new with session name:
// Converts an ArrayBuffer directly to base64, without any intermediate 'convert to string then | |
// use window.btoa' step. According to my tests, this appears to be a faster approach: | |
// http://jsperf.com/encoding-xhr-image-data/5 | |
/* | |
MIT LICENSE | |
Copyright 2011 Jon Leighton | |
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: |