kylemcdonald

bmhatfield

# If you use bash, this technique isn't really zsh specific. Adapt as needed.
source ~/keychain-environment-variables.sh

# AWS configuration example, after doing:
# $  set-keychain-environment-variable AWS_ACCESS_KEY_ID
#       provide: "AKIAYOURACCESSKEY"
# $  set-keychain-environment-variable AWS_SECRET_ACCESS_KEY
#       provide: "j1/yoursupersecret/password"
export AWS_ACCESS_KEY_ID=$(keychain-environment-variable AWS_ACCESS_KEY_ID);
export AWS_SECRET_ACCESS_KEY=$(keychain-environment-variable AWS_SECRET_ACCESS_KEY);

paniq

Screen resolutions
------------------

PICO-8 supports different undocumented videomodes that can be activated at runtime, 
using poke(0x5F2C, X) where X is one of the following mode numbers:

0: 128x128, 0 pages
1: 64x128, 1 page
2: 128x64, 1 page
3: 64x64, 3 pages

namuol

rage-quit support for bash

HOW TO INSTALL

Put flip somewhere in your $PATH and chmod a+x it.

Copy fuck into ~/.bashrc.

steeve

How to cross compile Go with CGO programs for a different OS/Arch

It is possible to compile Go programs for a different OS, even though go build says otherwise.

You'll need:

• a valid toolchain for the platform/os you're targetting
• Go Tip (works on 1.1 and 1.2rc1 but you might as well be on tip)
• golang-crosscompile helper script https://github.com/davecheney/golang-crosscompile
• the patch provided

derekcollison

I have done some more work on creating very fast hash algorithms in Go for small (3-8) and medium (16-32) size keys. Below are the current results.

NOTE: I used SetBytes(1) to give quick estimate of ops/sec

2012 MacbookAir 11" i7 2Ghz

================
OSX - Mountain Lion
Go version go1.0.3
================

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

dcramer

class QuerySetDoubleIteration(Exception):
    "A QuerySet was iterated over twice, you probably want to list() it."
    pass


# "Skinny" here means we use iterator by default, rather than
# ballooning in memory.
class SkinnyManager(Manager):
    def get_query_set(self):
        return SkinnyQuerySet(self.model, using=self._db)