Posts Tagged “Optimization”

Swift Foundation Unification (3)October 14, 2024
Swift Build Times and Module Verification (1)September 12, 2024
The Insane Engineering of the Game Boy August 27, 2024
NetNewsWire and Conditional GET Issues (2)August 6, 2024
Porting Google Sheets Calculations to WasmGC (1)June 28, 2024
SwiftData vs. Realm Performance Comparison (4)June 24, 2024
The Alternative Implementation Problem (1)May 8, 2024
Swift’s Native Clocks Are Very Inefficient (1)May 6, 2024
Optimizing WebKit & Safari for Speedometer 3.0 (2)April 19, 2024
Why Has Figma Reinvented the Wheel with PostgreSQL? April 18, 2024
NSTableView With SwiftUI (7)April 15, 2024
Noncopyable Generics Walkthrough (1)March 27, 2024
On the Insecurity of Software Bloat (17)February 16, 2024
Triggering Swift Property Observers From Initializers (5)December 20, 2023
Smaller and Faster Updates With Sonoma (4)December 4, 2023
SpamSieve 3.0.2 (1)November 17, 2023
Control Center in macOS Always Using CPU (8)October 4, 2023
Swift 5.9 September 19, 2023
Text Kit Benchmarks September 7, 2023
Premature Optimization: Universally Misunderstood (3)August 30, 2023
JVM Compares Strings Using the pcmpestri x86 Instruction (1)August 14, 2023
Objective-C Internals (1)August 10, 2023
A Fast Timestamp Parser in Swift July 21, 2023
UUID Formats 6–8 July 20, 2023
Removing the Python GIL July 19, 2023
Scaling Up the Prime Video Audio/Video Monitoring (1)May 5, 2023
Swift Foundation Preview (3)April 27, 2023
C23 Standard Sets the World on Fire (2)April 13, 2023
Swift Proposal: Noncopyable Structs and Enums (4)March 22, 2023
Speeding Up Scanner in Swift (3)February 23, 2023
Using Order Files to Speed Up Launches and Conformance Checks (3)February 16, 2023
Folders With High File Counts (9)January 19, 2023
It’s Often Memory That’s Killing Your Performance December 29, 2022
Blog Updates (Late 2022) (9)December 12, 2022
The Swifty Future of Foundation (9)December 12, 2022
Stable Diffusion With Core ML on Apple Silicon (2)December 2, 2022
SwiftUI Performance Gotchas November 30, 2022
Introduction to Move-Only Types in Swift November 29, 2022
Why Rosetta 2 Is Fast November 29, 2022
Sapling Source Control (1)November 22, 2022
Xcode 14 Unintentionally Increases App Size (1)November 16, 2022
Sunsetting Mighty (2)November 14, 2022
How Does Ventura Update Faster? (1)November 14, 2022
Improving Firefox Responsiveness on macOS (1)October 10, 2022
Accidentally Quadratic KVO (1)October 4, 2022
Zeroing Freed Memory (4)September 20, 2022
SQLite and DuckDB September 1, 2022
Lighter.swift August 26, 2022
Garbage Collection in JavaScriptCore August 19, 2022
Slow SwiftUI Closure Actions August 16, 2022
Swift Pitch: “borrow” and “take” Parameter Ownership Modifiers August 12, 2022
Swift Proposal: Move Function July 26, 2022
Porting Graphing Calculator From C++ to Swift (1)July 1, 2022
Swift URL Improvements at WWDC 2022 June 30, 2022
Swift Regex June 10, 2022
Swift @_assemblyVision May 26, 2022
Combine’s .collect(.byTime) Timer (1)May 23, 2022
Infinite Mac (1)April 26, 2022
How macOS Manages M1 CPU Cores April 25, 2022
How RAM Affects Xcode Compilation Speed April 25, 2022
SwiftUI Performance Tips April 19, 2022
Chrome Faster Than Safari in Speedometer Benchmark (1)March 11, 2022
Swift Type Checking Is Undecidable (1)February 28, 2022
Apple SSD Benchmarks and F_FULLSYNC (2)February 17, 2022
The Surprising Cost of Checking Protocol Conformances in Swift December 31, 2021
Roadmap for Improving Swift Performance Predictability (1)December 23, 2021
SectorLISP: Lisp With GC in 436 Bytes (1)December 21, 2021
Firefox’s Optimized Zip Format (1)December 1, 2021
Tesla’s Configurable Floating Point Formats October 29, 2021
Download Progress With Awaited Network Tasks (3)October 12, 2021
Swift 5.5 Released September 21, 2021
Faster App Launching in iOS 15 and Monterey June 30, 2021
iOS 15: On-Device Siri (2)June 15, 2021
Emerge (Sponsor) June 7, 2021
Kernel Assisting the Objective-C Runtime June 7, 2021
How Uber Deals With Large iOS App Size May 31, 2021
Preventing Surprisingly Large Objective-C Type Encodings May 20, 2021
Google Docs Switching From DOM to Canvas (6)May 13, 2021
How Facebook Encodes Videos (1)April 28, 2021
Mighty (20)April 28, 2021
Swift 5.4 Released April 27, 2021
Collecting concurrentPerform(iterations:) Results in a Swift Array April 15, 2021
High Performance Numeric Programming With Swift (2)April 12, 2021
Making NSFetchRequest.fetchBatchSize Work With Swift March 31, 2021
Accidentally Quadratic Parsing With sscanf March 4, 2021
SwiftDtoa v2 February 4, 2021
The Case of the Extra 40 ms December 31, 2020
Rewriting the Uber App in Swift (11)December 10, 2020
libdispatch’s Unmet Promise (8)November 25, 2020
Slow Swift Compilation of Boolean Comparisons (9)November 6, 2020
Faster Xcode Updates (7)October 14, 2020
Frances Allen, RIP August 17, 2020
Speculation in JavaScriptCore July 30, 2020
Optimizing the Objective-C Runtime in Big Sur (1)July 6, 2020
Reverse Engineering macOS 11.0 (7)June 26, 2020
Why NetNewsWire Is Fast (7)May 19, 2020
WebKit: Inline Caching With Delete April 23, 2020
John Conway, RIP April 14, 2020
Opening Large CSV Files in Numbers 10.0 (5)April 2, 2020
Rewriting Facebook Messenger March 5, 2020
Optimizing PDF File Size (1)March 4, 2020
How Crash Bandicoot Hacked the Original Playstation (3)February 28, 2020
iOS Optimization Tips (2)February 18, 2020
The Hunt for the Fastest Zero January 22, 2020
Direct Objective-C Properties (4)November 19, 2019
Swift Numerics November 8, 2019
Efficiently Mutating Nested Swift Data Structures (2)November 2, 2019
Accidentally Quadratic Constant Folding August 30, 2019
C++ Development Tips August 15, 2019
Opening Huge CSV Files (7)August 5, 2019
Fast Software, the Best Software (7)July 26, 2019
iOS 13 Beta (3)June 6, 2019
Performance Considerations When Reading Directories on macOS (4)April 22, 2019
The Weirdness of NSURL’s isDirectory Flag March 29, 2019
UTF-8 String in Swift 5 (1)March 21, 2019
The Curiously Recursive Inlinable Switch Pattern (CRISP) February 20, 2019
Fast Safe Mutable State in Swift 5 February 7, 2019
Stack Allocation for Non-Escaping Swift Closures January 17, 2019
How Facebook Keeps Messenger from Crashing on New Year’s Eve (1)January 17, 2019
When to Use dispatch_async() (1)January 7, 2019
The Friendship That Made Google Huge (1)December 7, 2018
The Zig Programming Language (2)November 16, 2018
String’s ABI and UTF-8 November 6, 2018
Swift Nil-coalescing Performance Trap October 10, 2018
Software Disenchantment (2)September 24, 2018
Adding isMultiple(of:) to Swift’s BinaryInteger August 31, 2018
Why the New V8 Is So Damn Fast August 3, 2018
Page Lifecycle API (2)July 27, 2018
iOS 12 Performance (2)July 27, 2018
Swift 4.2’s New Calling Convention July 5, 2018
Handles Are the Better Pointers June 27, 2018
The Unified Log in macOS Mojave: Signposts and Instruments (2)June 15, 2018
JPEG Decoding With the Best May 10, 2018
The 2017 Panic Report (3)May 3, 2018
Behind-the-Scenes Improvements in Swift 4.1 April 12, 2018
How Fast Is AMP Really? (1)April 11, 2018
Towards Robust Performance Measurement April 10, 2018
Faster Swift String Concatenation (1)March 9, 2018
C String Functions in Swift: a malloc’y Story March 2, 2018
Code Size Optimization Mode in Swift 4.1 (1)February 28, 2018
Speed Improvements in Python 3.7 February 27, 2018
On Compiling WebKit (Now Twice As Fast!) (1)February 22, 2018
Optimizing Global Constant Data Structures Using Relative References February 20, 2018
Lightroom Classic CC 7.2 (2)February 19, 2018
Serialization on macOS and iOS: Speed and Size February 6, 2018
Base64 Encoding and Decoding With SIMD Instructions February 2, 2018
Swift String ABI, Performance, and Ergonomics (1)January 16, 2018
A Branchless UTF-8 Decoder (1)January 4, 2018
Swift and GPU Compiler Details November 29, 2017
The Cost of JavaScript (7)November 27, 2017
Firefox Quantum (8)November 17, 2017
Work on SQLite 4 Has Concluded November 10, 2017
Locks, Thread Safety, and Swift: 2017 Edition October 30, 2017
Do iPhones Get Slower Over Time? (3)October 9, 2017
Swift 4 Weak References September 27, 2017
Data Locality and STL vs. Swift September 6, 2017
Making the Internet Archive’s Full Text Search Faster August 8, 2017
Using Static Frameworks to Speed Up Launching (4)August 4, 2017
NSProgress Shortcomings and CSProgress (1)August 1, 2017
Dissecting objc_msgSend on ARM64 July 25, 2017
APFS and Fast Catalog Search July 20, 2017
The Lightroom Manifesto: Adobe Has Lost Its Way (4)July 17, 2017
Writing a Really, Really Fast JSON Parser June 30, 2017
Modern Python Dictionaries (2)June 23, 2017
JavaScriptCore Loves ES6 June 23, 2017
A Tale of Three Git Filter Branches May 15, 2017
Tail Call Elimination April 27, 2017
Swift Compiler Not Optimized for Lots of Cores (3)March 16, 2017
Provide Custom Collections for Dictionary Keys and Values (1)February 20, 2017
Ruby’s reject! February 20, 2017
Swift Ownership Manifesto (2)February 18, 2017
Optimizations in Syntax Highlighting February 13, 2017
mkfile(8) Is Severely Syscall Limited February 12, 2017
GVFS (Git Virtual File System) (2)February 6, 2017
Riptide: WebKit’s Retreating Wavefront Concurrent Garbage Collector January 30, 2017
Flickr’s Year Without Buying Storage January 27, 2017
Swift ABI Stability Manifesto (1)January 26, 2017
Intel Core i7-7700K Kaby Lake Review January 5, 2017
PyPy’s Hash Table Implementation (1)December 21, 2016
Swift: Challenges and Opportunity for Language and Compiler Research (1)December 19, 2016
Golang’s Real-Time GC in Theory and Practice December 19, 2016
Replacing Auto Layout With LayoutKit December 16, 2016
Accidentally Quadratic Rust Hash Tables (1)December 9, 2016
Why Does calloc Exist? December 7, 2016
Guarding Against Long Swift Compiles (1)December 5, 2016
Swift Copy-on-Write PSA: Mutating Dictionary Entries (1)November 14, 2016
Uber’s JSON Compression November 12, 2016
Whole-Module Optimization in Swift 3 October 30, 2016
Web Bloat Score Calculator (1)October 24, 2016
ripgrep October 12, 2016
os_unfair_lock (2)October 7, 2016
Real World Swift Performance October 7, 2016
The Myth of RAM (1)August 31, 2016
Foundation Hashing August 25, 2016
Steve Jobs on Graphics Performance August 24, 2016
Looking Back on Swift 3 and Ahead to Swift 4 (1)July 30, 2016
“This Regular Expression Has Been Replaced With a Substring Function” July 21, 2016
Exponential Time Complexity in the Swift Type Checker (1)July 18, 2016
Swift Classes to Be Non Publicly Subclassable by Default (12)July 17, 2016
Mutexes and Closure Capture in Swift June 7, 2016
C Compilers Break for Objects Larger Than PTRDIFF_MAX Bytes May 23, 2016
Beware the UIKit Visitors (1)May 12, 2016
Locking in WebKit (2)May 9, 2016
Swift Proposal: Mutability and Foundation Value Types (3)April 22, 2016
Performance Comparisons of Common Operations, 2016 Edition April 21, 2016
Swift Type-checking Performance Case Study April 21, 2016
Dropbox’s Exodus From the Amazon Cloud Empire (5)March 15, 2016
GitHub Rate Limiting CocoaPods March 10, 2016
Swift Asserts March 4, 2016
Why Safe C Is Sometimes Unsafe Swift March 3, 2016
Proposed New Swift Collections Model March 3, 2016
Fast Ordered Collections for Swift Using In-memory B-trees (1)March 1, 2016
Google AMP and Facebook Instant Articles February 26, 2016
Introducing the B3 JIT Compiler February 25, 2016
Use and Misuse of NSUserDefaults (6)February 22, 2016
Concurrent Memory Deallocation in the Objective-C Runtime (1)February 12, 2016
Swift Struct Storage February 11, 2016
Pragmatic Core Data February 10, 2016
Swift Optimization Tips and Reference Counting February 3, 2016
Exploring Swift Array’s Implementation (2)January 8, 2016
Microsoft Solitaire Was Developed by a Summer Intern January 8, 2016
More Responsive WebKit Tapping on iOS December 17, 2015
Swift Plans (4)December 9, 2015
The Search for a Faster CRC32 December 4, 2015
Optimizing Facebook for iOS Start Time November 30, 2015
How Swift Implements Unowned and Weak References (2)November 24, 2015
A Look Into Realm’s Core DB Engine November 16, 2015
How Facebook’s Safety Check Works November 15, 2015
Gene Amdahl, RIP November 14, 2015
How Swift Implements Generics November 6, 2015
Dynamic Frameworks and App Launch Times October 26, 2015
Swift’s @noescape Attribute October 26, 2015
Real-time Resizing of Flickr Images Using GPUs (3)October 22, 2015
Google’s Accelerated Mobile Pages (6)October 14, 2015
Jitterdämmerung (2)October 8, 2015
Counting Git Objects With Bitmap Indexes September 24, 2015
The Big Nerd Ranch Core Data Stack September 23, 2015
Objective-C Is Our Generation’s COBOL (7)September 18, 2015
Computer Science Courses that Don’t Exist, But Should September 13, 2015
How to Use -updateConstraints September 1, 2015
Skylake August 31, 2015
Type Profiling and Code Coverage Profiling for JavaScript August 28, 2015
Lazy Filters and Maps August 22, 2015
Making Tab-Switching and Scrolling Faster in OmniFocus for Mac August 22, 2015
Swift Protocols, Arrays, and Casting (3)August 3, 2015
Swift Array Performance (8)August 1, 2015
NSTaggedPointerString (1)July 31, 2015
SQLite FTS5 July 31, 2015
Swift Whole Module Optimization July 28, 2015
Java Strings No Longer Share Storage (1)July 20, 2015
Swift 2: SIMD June 25, 2015
Introduction to WebKit Content Blockers (1)June 18, 2015
How Crash Bandicoot Was Fit Into 2MB of RAM June 18, 2015
How Not to Crash #2: Mutation Exceptions May 17, 2015
Facebook Instant Articles (7)May 15, 2015
Dropbox’s Firefly Full-Text Search Engine May 14, 2015
Using Atomics to Get Rid of @synchronized May 12, 2015
Swift, Accelerate, and Generics April 7, 2015
The Death of Optimizing Compilers April 2, 2015
Swift Protocols and Generics (2)March 28, 2015
Wrapping libxml2 for Swift March 12, 2015
Let’s Build @synchronized March 11, 2015
Using cp to Copy a Lot of Files (3)March 10, 2015
Wikipedia Adopts HHVM January 13, 2015
Trust No One, Not Even Performance Counters October 25, 2014
Mutable Collections in Swift October 19, 2014
NSCoder, NSArchiver, and NSKeyedArchiver October 13, 2014
To Swift and Back Again October 9, 2014
SQLite 3.8.7 Alpha 50% Faster Than 3.7.17 (1)October 6, 2014
Objective-C Drops vtable Optimization (3)September 24, 2014
Facebook’s iOS Infrastructure September 18, 2014
Swift 1.0 Performance and Compilation Times (4)September 13, 2014
Core Data Batch Updates September 8, 2014
FastCoding August 25, 2014
“It’s a Coup” (17)August 18, 2014
Stack Overflow Scalability July 22, 2014
Exploring Swift Memory Layout July 19, 2014
Secrets of Swift’s Speed July 6, 2014
A Closer Look at Android RunTime (ART) July 6, 2014
Compiler Writers Gone Wild: ARC Madness June 28, 2014
Metal June 6, 2014
Tail Recursion, Objective-C, and ARC May 25, 2014
Why objc_autoreleaseReturnValue Differs for x86_64 and ARM May 21, 2014
Making dispatch_once() Fast (1)May 21, 2014
Introducing the WebKit FTL JIT (1)May 14, 2014
Facebook Makes Mercurial Faster Than Git (1)April 30, 2014
Buggy Security Guidance from Apple April 20, 2014
How I Came to Write D April 8, 2014
Exposing NSDictionary (1)April 8, 2014
Surveying Various Languages’ String-search Algorithms April 2, 2014
MCS Locks and qspinlocks April 2, 2014
Warp, a Fast C and C++ Preprocessor (1)March 28, 2014
Exposing NSMutableArray (1)March 27, 2014
Overview of WebKit’s CSS JIT Compiler March 26, 2014
An Illustrated History of objc_msgSend February 12, 2014
ARC’s Fast Autorelease January 31, 2014
The Lost Art of C Structure Packing (2)January 16, 2014
Why GNU grep Is Fast (1)January 10, 2014
The Effects of Compiler Optimizations (1)October 22, 2013
iOS on arm64 Has Inline Retain Count in the isa (3)September 24, 2013
Date Parsing Performance: NSDateFormatter vs. SQLite (5)September 10, 2013
WebKit Binary Size Speed Boost August 14, 2013
How Three Guys Rebuilt the Foundation of Facebook (1)June 13, 2013
NetflixGraph Memory Optimization January 22, 2013
Page Weight Matters (1)January 4, 2013
Optimizing Flood Fill September 29, 2012
objc_msgSend_vtable (2)June 18, 2011
Python’s Dictionary Implementation (1)February 13, 2011
Dividing by Multiplying (1)February 17, 2010
Selector Uniquing in the dyld Shared Cache September 1, 2009
Cocoa Enumeration (3)December 8, 2003

Note: Most posts from before September 2012 are not yet tagged.