A script to fix EDID problems on external monitors in macOS.
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Connect only the problem display.
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Create this directory structure (if it doesn't already exist):
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 |
-- show running queries (pre 9.2) | |
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query | |
FROM pg_stat_activity | |
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' | |
ORDER BY query_start desc; | |
-- show running queries (9.2) | |
SELECT pid, age(clock_timestamp(), query_start), usename, query | |
FROM pg_stat_activity | |
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' |
#!/usr/bin/ruby | |
# Create display override file to force Mac OS X to use RGB mode for Display | |
# see http://embdev.net/topic/284710 | |
require 'base64' | |
data=`ioreg -l -d0 -w 0 -r -c AppleDisplay` | |
edids=data.scan(/IODisplayEDID.*?<([a-z0-9]+)>/i).flatten | |
vendorids=data.scan(/DisplayVendorID.*?([0-9]+)/i).flatten |
(ns reagent-test.core | |
(:require [reagent.core :as reagent :refer [atom]] | |
[datascript :as d] | |
[cljs-uuid-utils :as uuid])) | |
(enable-console-print!) | |
(defn bind | |
([conn q] | |
(bind conn q (atom nil))) |
(ns datascript-to-datomic-util | |
(:require [datascript :as d])) | |
;;;; a utility to help with a datomic-datascript roundtrip process involving: | |
;;; 1. export some data from a datomic database and transact into a datascript instance. | |
;;; 2. perform one or more transactions against datascript. | |
;;; 3. transact the sum of all changes made against datascript back into datomic in a single tx | |
;;; this namespace contains two public functions: | |
;;; listen-for-changes: listen to datascript transactions and build up a record of changes |
This guide assumes that you recently run brew upgrade postgresql
and discovered to your dismay that you accidentally bumped from one major version to another: say 9.3.x to 9.4.x. Yes, that is a major version bump in PG land.
First let's check something.
brew info postgresql
The top of what gets printed as a result is the most important:
These use separate document structures instead of HTML, some are more modular libraries than full editors
// connect() is a function that injects Redux-related props into your component. | |
// You can inject data and callbacks that change that data by dispatching actions. | |
function connect(mapStateToProps, mapDispatchToProps) { | |
// It lets us inject component as the last step so people can use it as a decorator. | |
// Generally you don't need to worry about it. | |
return function (WrappedComponent) { | |
// It returns a component | |
return class extends React.Component { | |
render() { | |
return ( |