jjb

This recipe is a work in progress and has never been run as-is.

• timeouts are in ms
• lock timeout: in postgres, when a statement that wants a restrictive lock waits on another lock, other statements that want locks can't jump the queue. so even though the statement that is waiting might only take a very short amount of time, when it starts running, while it is waiting no other statements can begin. So we set the lock timeout pretty low and retry if we don't get it.
• statement timeout: we set a short statement timeout before statements which do lock and which we expect to take a short amount of time, just in case something about our assumptions/understanding is wrong and the statement ends up taking a long time. if this happens the statement will bail early without causing harm, and we can investigate what is wrong with

rickybrent

--- dsdt.dsl	2018-03-04 16:00:00.866484238 -0800
+++ dsdt.dsl	2018-03-04 16:28:07.933272752 -0800
@@ -18,9 +18,8 @@
  *     Compiler ID      "INTL"
  *     Compiler Version 0x20160527 (538314023)
  */
-DefinitionBlock ("", "DSDT", 2, "LENOVO", "SKL     ", 0x00000000)
+DefinitionBlock ("", "DSDT", 2, "LENOVO", "SKL     ", 0x00000001)
 {
-    External (_GPE.TBNF, MethodObj)    // 0 Arguments

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

msbarry

vec3 rgb2hsv(vec3 c) {
  vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
  vec4 p = c.g < c.b ? vec4(c.bg, K.wz) : vec4(c.gb, K.xy);
  vec4 q = c.r < p.x ? vec4(p.xyw, c.r) : vec4(c.r, p.yzx);

  float d = q.x - min(q.w, q.y);
  float e = 1.0e-10;
  return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
}

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

sloria

The Best of the Best Practices (BOBP) Guide for Python

A "Best of the Best Practices" (BOBP) guide to developing in Python.

In General

Values

• "Build tools for others that you want to be built for you." - Kenneth Reitz
• "Simplicity is alway better than functionality." - Pieter Hintjens