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@tclementdev
tclementdev / libdispatch-efficiency-tips.md
Last active April 26, 2024 10:15
Making efficient use of the libdispatch (GCD)

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

  • You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

  • Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

@nemotoo
nemotoo / .gitattributes
Last active May 8, 2024 16:43
.gitattributes for Unity3D with git-lfs
## Unity ##
*.cs diff=csharp text
*.cginc text
*.shader text
*.mat merge=unityyamlmerge eol=lf
*.anim merge=unityyamlmerge eol=lf
*.unity merge=unityyamlmerge eol=lf
*.prefab merge=unityyamlmerge eol=lf
@robertsdionne
robertsdionne / deepdream-install.md
Last active February 15, 2021 16:07
Deepdream installation
#!/usr/bin/env bash

# Assuming OS X Yosemite 10.10.4

# Install XCode and command line tools
# See https://itunes.apple.com/us/app/xcode/id497799835?mt=12#
# See https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/xcode-select.1.html
xcode-select --install
@miguelcma
miguelcma / DeviceUID.m
Created May 25, 2015 15:09
iOS Unique Device ID that persists between app reinstalls
/* DeviceUID.h
#import <Foundation/Foundation.h>
@interface DeviceUID : NSObject
+ (NSString *)uid;
@end
*/
// Device.m
@yoichitgy
yoichitgy / mergegenstrings.py
Last active July 9, 2022 23:59
A script to generate .strings file for .swift, .m, .storyboard and .xib files by genstrings and ibtool commands, and merge them with existing translations.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Localize.py - Incremental localization on XCode projects
# João Moreno 2009
# http://joaomoreno.com/
# Modified by Steve Streeting 2010 http://www.stevestreeting.com
# Changes
# - Use .strings files encoded as UTF-8
@tsiege
tsiege / The Technical Interview Cheat Sheet.md
Last active May 9, 2024 13:54
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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