munrocket

WGSL Noise Algorithms

Good and fast integer hash

// https://www.pcg-random.org/
fn pcg(n: u32) -> u32 {
    var h = n * 747796405u + 2891336453u;
    h = ((h >> ((h >> 28u) + 4u)) ^ h) * 277803737u;
    return (h >> 22u) ^ h;
}

elderbas

def create_batch(conn, %{"people" => people_params}) do
  changesets = Enum.map(people_params, fn class ->
    Person.changeset(%Person{}, person)
  end)

  result = changesets
           |> Enum.with_index()
           |> Enum.reduce(Ecto.Multi.new(), fn ({changeset, index}, multi) ->
              Ecto.Multi.insert(multi, Integer.to_string(index), changeset)
           end)

Bleuje

OpenSimplexNoise noise;

int[][] result;
float t, c;

float ease(float p) {
  return 3*p*p - 2*p*p*p;
}

float ease(float p, float g) {

anvk

--- PSQL queries which also duplicated from https://github.com/anvk/AwesomePSQLList/blob/master/README.md
--- some of them taken from https://www.slideshare.net/alexeylesovsky/deep-dive-into-postgresql-statistics-54594192

-- I'm not an expert in PSQL. Just a developer who is trying to accumulate useful stat queries which could potentially explain problems in your Postgres DB.

------------
-- Basics --
------------

-- Get indexes of tables

ageis

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

noopkat

⚠️ this is now stupidly out of date

Computers

• 13" Macbook Pro 3.3 GHz i7 (late 2016)
• Microsoft Surface Book (2016)

Peripherals

• Dell up3216q 32" monitor

ShimShtein

1. rack-mini-profiler: Swiss-army knife profiler for rails apps
2. flamegraph: Nice and useful timeline visualizer for debugging long methods.
3. memory_profiler: Easy to use memory profiler for memory consuming methods.
4. heapy: Memory dump analyzer for advanced memory analysis.
5. foreman-tracer: great tool for unintrusive tracing by lzap.

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

chrismccord

If you want a run-down of the 1.3 changes and the design decisions behidn those changes, check out the LonestarElixir Phoenix 1.3 keynote: https://www.youtube.com/watch?v=tMO28ar0lW8

To use the new phx.new project generator, you can install the archive with the following command:

$ mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez

Bump your phoenix dep

Phoenix v1.3.0 is a backwards compatible release with v1.2.x. To upgrade your existing 1.2.x project, simply bump your phoenix dependency in mix.exs:

robinsk

var BrowserPrint = function() {
    function e(e) {
        return s + e
    }

    function n(e, n) {
        var i = new XMLHttpRequest;
        return "withCredentials" in i ? i.open(e, n, !0) : "undefined" != typeof XDomainRequest ? (i = new XDomainRequest, i.open(e, n)) : i = null, i
    }