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Jonathan Ruckwood jon-ruckwood

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@jboner
jboner / how-akka-maps-to-eai-patterns.txt
Last active October 9, 2022 21:57
How Akka maps to EAI Patterns
# How Akka maps to EAI Patterns
Might be up for debate or just plain wrong. Just some notes I scribbled down some time ago.
-----------------------------------------------------------------------------------------------------------------
EAI PATTERN AKKA PATTERN REFERENCE
-----------------------------------------------------------------------------------------------------------------
Point to Point Channel Regular Actor Communication http://www.eaipatterns.com/PointToPointChannel.html
Event-Driven Consumer Regular Actor Receive http://www.eaipatterns.com/EventDrivenConsumer.html
Message Selector Actor with Stash http://www.eaipatterns.com/MessageSelector.html
@jnschulze
jnschulze / osx_ramdisk.sh
Last active February 5, 2024 13:48
Move Chrome, Safari and iTunes Cache to Ramdisk.
#!/bin/bash
# Size at the end is * 2048 where 2048 = 1 MB, so 1572864 = 768 MB
#DISK=`/usr/bin/hdiutil attach -nobrowse -nomount ram://1572864`
DISK=`/usr/bin/hdiutil attach -nobrowse -nomount ram://2097152`
/usr/sbin/diskutil erasevolume HFS+ "RamDiskCache" $DISK
CACHEDIR="/Volumes/RamDiskCache/$USER"
@kissgyorgy
kissgyorgy / osx_defaults.sh
Last active June 1, 2017 05:56
Change OS X defaults
# prevent the creation of .DS_Store files on network drives
# http://hints.macworld.com/article.php?story=2005070300463515
defaults write com.apple.desktopservices DSDontWriteNetworkStores true
#---------------------------------------------------------------------
# Disable/enable Dashboard:
# http://hints.macworld.com/article.php?story=20050723123302403
defaults write com.apple.dashboard mcx-disabled -boolean YES
@tcovo
tcovo / EmbeddedServerCommand.java
Created January 11, 2013 17:17
EmbeddedServerCommand for Dropwizard services, to be used as an alternative for ServerCommand when it is desirable for the service to not block the thread it was started on, and allow stopping the service programmatically. Some modifications must be made to the Service class to make use of this functionality. An example JUnit test is provided to…
package com.example;
import com.google.common.base.Charsets;
import com.google.common.io.Resources;
import com.yammer.dropwizard.Service;
import com.yammer.dropwizard.cli.EnvironmentCommand;
import com.yammer.dropwizard.config.Configuration;
import com.yammer.dropwizard.config.Environment;
import com.yammer.dropwizard.config.ServerFactory;
import com.yammer.dropwizard.lifecycle.ServerLifecycleListener;
@jboner
jboner / latency.txt
Last active May 5, 2024 03:12
Latency Numbers Every Programmer Should Know
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
@kimble
kimble / DropwizardTestServer.java
Created May 25, 2012 19:15
JUnit @rule for running Dropwizard integration test. Ps! This is just a proof of concept. There are probably some landminds lying around waiting to go off, especially around lifecycle management and static state
package com.developerb.dropwizard;
import com.yammer.dropwizard.AbstractService;
import com.yammer.dropwizard.Service;
import com.yammer.dropwizard.cli.Command;
import com.yammer.dropwizard.config.Configuration;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
@henrik
henrik / tmux_cheatsheet.markdown
Created March 3, 2012 19:47
tmux cheatsheet

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name: