LouisCAD

import android.arch.lifecycle.GenericLifecycleObserver
import android.arch.lifecycle.Lifecycle
import android.arch.lifecycle.Lifecycle.Event.ON_DESTROY
import android.arch.lifecycle.LifecycleOwner
import kotlinx.coroutines.experimental.CoroutineScope
import kotlinx.coroutines.experimental.Dispatchers
import kotlinx.coroutines.experimental.Job
import kotlinx.coroutines.experimental.android.Main

fun Lifecycle.createJob(cancelEvent: Lifecycle.Event = ON_DESTROY): Job {

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs