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greyby / ObjectHeader32.txt
Created October 17, 2018 03:44 — forked from arturmkrtchyan/ObjectHeader32.txt
Java Object Header
|----------------------------------------------------------------------------------------|--------------------|
| Object Header (64 bits) | State |
|-------------------------------------------------------|--------------------------------|--------------------|
| Mark Word (32 bits) | Klass Word (32 bits) | |
|-------------------------------------------------------|--------------------------------|--------------------|
| identity_hashcode:25 | age:4 | biased_lock:1 | lock:2 | OOP to metadata object | Normal |
|-------------------------------------------------------|--------------------------------|--------------------|
| thread:23 | epoch:2 | age:4 | biased_lock:1 | lock:2 | OOP to metadata object | Biased |
|-------------------------------------------------------|--------------------------------|--------------------|
|
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greyby / 0_reuse_code.js
Created October 28, 2015 07:44
Here are some things you can do with Gists in GistBox.
// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console
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greyby / path-in-mac-osx-10.7.mdown
Created June 8, 2014 16:18 — forked from Overbryd/path-in-mac-osx-10.7.mdown

$PATH in MacOSX 10.7

MacOSX has a truly global path setting that precedes any other setting like ~/.bash_profile. The file /private/etc/paths is a list of pathnames. The order from top to bottom defines the resulting order in the $PATH variable. After loading /private/etc/paths there is a directory /private/etc/paths.d/ with files in the same style. Those are appended to the $PATH variable.

The default content of /private/etc/paths looks like this:

/usr/bin

/bin

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greyby / redis.markdown
Created May 30, 2014 03:25 — forked from bdotdub/redis.markdown

Running redis using upstart on Ubuntu

I've been trying to understand how to setup systems from the ground up on Ubuntu. I just installed redis onto the box and here's how I did it and some things to look out for.

To install: