Macbook Xcode Performance

Xcode 7 Download
Xcode Macbook Air

9 Tweaks to Speed up Xcode Builds

I'll also see how some more advanced applications, like Apple's Xcode development environment, perform. But Xcode worked/works just fine on my 2014-era MacBook Air, and I have little doubt it.
MacBook Air 2019 performance. Armed with a Y-Series Intel Core i5-8210Y CPU with 8GB of RAM, the 2019 MacBook Air has the same 'just enough' kick of performance we saw in the 2018 MacBook Air.

As projects grow, build times can become problematic. However, there are several tweaks you can make to Xcode that can decrease the amount of time it takes for builds to complete without any extra work.

UPDATE: This article has been expanded to add two factors to think about when speeding up VMs. In addition, this article references Xcode 9. With reports that Xcode 11 builds are up to 50% slower, Xcode build speed has become an even hotter topic.

Increase the thread count:
By default, Xcode typically uses the same number of threads as the number of cores in the machine's CPU. However, you can dramatically reduce build times – in some instances by a full 30% - by increasing the thread count beyond the default. This takes advantage of some processors' ability to multi-thread or simulate additional cores. Keep in mind that you may need to experiment to determine if there are diminishing returns for parallelized builds with your code base, and then adjust the thread count accordingly.

MacBook Air 2020 i3 - Xcode and Simulator performance. MacBook Air 2020 i3 - Xcode and Simulator performance. With the kind of cooling that MBA 2020 has, is it humanly possible to use it for iOS and Android development? Is it really as bad as some of the reviews say it is? Like hitting 100°C after a few seconds of scrolling.

Enable the New Build System:
‍Apple's 'New Build System' is written completely in Swift and was designed for overall performance and dependency management improvements. Be aware that while the New Build System is available in Xcode 9+, it must be enabled in Xcode under Project/Workplace Settings since 'Standard Build' will be the default option. Alternatively, the New Build System can be enabled via command line (details linked below).

You can find more details and instructions for enabling the New Build System here:
Xcode New Build System for Speedy Swift Builds

Tweak the iOS simulator:
‍The Apple iOS test simulator lets you test across different software and hardware combinations (but only from a Mac). By using Physical Size or Pixel Accurate window sizes, you can reduce both the size of your tests and the time it takes for them to complete. These configuration changes use less resources and help prevent tests from slowing down simulating pixels that no one will ever see.

You can find configuration instructions here: Adjusting the Xcode iPhone simulator scale and size

Use parallelized builds:
Parallelized builds can reduce total Xcode build times by building components of the app that do not depend on each other at the same time. For projects with many smaller dependencies that can easily be run in parallel, this can offer significant time savings. Gains will obviously depend on how your code is written, but it is worth testing since parallelized builds aren't enabled by default. You can enable parallel builds by editing the Xcode Scheme and checking ‘Parallel Builds' in the build action of the scheme.

You can find more detail on leveraging parallelized builds here: When should I check 'Parallelize Build' for an Xcode scheme?

Turn on build time summary:
Build time summary enables reporting on the build times of each piece of the Xcode build. In other words, build time summary can help you identify the parts of the build that are impacting build times and further optimize the build order for overall gains. While not a fix in and of itself, the insights that build time summary provides can be useful in prioritizing efforts when trying to optimize your build times.

Bigger build machines:
‍This one isn't technically an Xcode tweak, but bigger build machines do have an outsized impact when attempting to speed up builds. More computing power simply translates into faster completion of processes and builds. Our testing shows that moving from a dual-core Mac mini to a 12-core Mac Pro can give a 3x speedup without any additional effort. When you're ready to upgrade or scale your Mac infrastructure, feel free to contact us at MacStadium.

UPDATE - Increase your clock speed:

With the recent Xcode 11 release, more and more builds are showing signs of single-threaded-like behavior. That is, some elements are not being run in parallel like before. In this event, hardware with more cores is not necessarily better. MacStadium is currently finding customers can complete builds faster by picking a 6-core 2013 Mac Pro, which has a 3.5 GHz clock speed over the 12-core 2013 Mac Pro at 2.7 GHz. Individual builds vary, but this a factor to check.

UPDATE - Enable caching:

Xcode now supports caching automatically as long as users do not run the Product > Clean feature before builds. This is a great improvement for local developers who are the primary audience for Apple's continued development. For teams, the caching features of Bazel make it a very attractive choice. The implementation of Bazel is not always easy, but implementing Bazel for iOS and macOS builds was the specific focus of the 2019 BazelCon. All the talks are now on YouTube.

‍

If you're running dozens or hundreds of builds a day as part of a CI pipeline, you can improve performance by leveraging a virtualized Mac fleet. Orka, the first and only solution built for orchestrating genuine Apple hardware allows you to orchestrate many build machines using Kubernetes technology.

You can try an Orka sandbox and see for yourself how easy it is to manage a Jenkins pipeline, spin-up VMs and achieve near bare metal speeds on a hypervisor built specifically for macOS and iOS app development. Have questions? Talk to a sales engineer about how Orka can transform your Xcode build process.

‍

‍Additional Resources:
Of course, these are only a few of the suggestions you can use to speed your Xcode build times. The following resources can provide additional information and suggestions on improving your Xcode build times.

Fl studio producer edition free download mac. ‍

macOS Catalina updates improve the stability, performance, or compatibility of your Mac and are recommended for all Catalina users. To get these updates, choose System Preferences from the Apple menu , then click Software Update. Learn more about updating the software on your Mac.

For details about the security content of these updates, see Apple Security Updates.

macOS 10.15

macOS Catalina 10.15.7

macOS Catalina 10.15.7 provides important security updates and bug fixes for your Mac.

Resolves an issue where macOS would not automatically connect to Wi-Fi networks
Fixes an issue that could prevent files syncing through iCloud Drive
Addresses a graphic issue that may occur on iMac (Retina 5K, 27-inch, 2020) with Radeon Pro 5700 XT

Some features may not be available for all regions, or on all Apple devices.

macOS Catalina 10.15.6

macOS Catalina 10.15.6 introduces local news in your Today feed in Apple News and improves the security and reliability of your Mac.

Apple News

Local news in your Today feed provides extensive coverage of San Francisco, the Bay Area, Los Angeles, Houston, and New York City
More stories available from local news providers with a subscription to Apple News+
Your daily newsletter from Apple News can now be personalized with stories that reflect your interests

This update also includes bug fixes and other improvements.

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Adds a new option to optimize video streaming on HDR-compatible Mac notebooks for improved battery life
Fixes an issue where the computer name may change after installing a software update
Resolves an issue where certain USB mouse and trackpads may lose connection

Enterprise content:

When using the built-in keyboard with a non-U.S. keyboard layout on some Mac models, passwords with certain characters are no longer rejected at the Mac login window
Allows command-line tools that don't use CFNetwork, such as curl(1), to continue connecting to TLS servers that use certificates issued by the recently expired AddTrust External CA Root
Major new releases of macOS can be hidden when using the softwareupdate(8) command with the --ignore flag, if the Mac is enrolled in Apple School Manager, Apple Business Manager, or a user-approved MDM.
This change also affects macOS Mojave and macOS High Sierra after installing Security Update 2020-004.

Some features may not be available for all regions, or on all Apple devices.

macOS Catalina 10.15.5

macOS Catalina 10.15.5 introduces battery health management in the Energy Saver settings for notebooks, a new option to disable automatic prominence in Group FaceTime calls, and controls to fine-tune the built-in calibration of your Pro Display XDR. The update also improves the stability, reliability, and security of your Mac.

Battery Health Management

Battery health management to help maximize battery lifespan for Mac notebooks
Energy Saver preference pane now displays battery condition and recommends if the battery needs to be serviced
Option to disable battery health management
For more information, please visit https://support.apple.com/kb/HT211094

FaceTime Prominence Preference https://urexthacom1976.wixsite.com/kitssoftware/post/minecraft-pocket-edition-app-download.

New option to control automatic prominence on Group FaceTime calls, so video tiles do not change size when a participant speaks

Calibration Fine-Tuning for Pro Display XDR Macbook pro erase hard drive format.

Controls to fine-tune the built-in calibration of your Pro Display XDR by adjusting the white point and luminance for a precise match to
your own display-calibration target

This update also includes bug fixes and other improvements:

Fixes an issue that may prevent Reminders from sending notifications for recurring reminders
Addresses an issue that may prevent password entry on the login screen
Fixes an issue where System Preferences would continue to show a notification badge even after installing an update
Resolves an issue where the built-in camera may not be detected when trying to use it after using a video conferencing app
Addresses an issue for Mac computers with the Apple T2 Security Chip where internal speakers may not appear as a sound output device in Sound preferences
Fixes a stability issue with uploading and downloading media files from iCloud Photo Library while your Mac is asleep
Resolves a stability issue when transferring large amounts of data to RAID volumes
Fixes an issue where the Reduced Motion Accessibility preference did not reduce the speed of animations in a Group FaceTime call

Enterprise content:

Improves performance on certain Mac models when enabling hardware acceleration in GPU-intensive apps such as those used for video conferencing
Addresses an issue where Microsoft Exchange accounts were unable to sign in during account setup when using Conditional Access
Apple Push Notification Service traffic now uses a web proxy when specified in a PAC file via the Proxies payload
Resolves an issue that prevented some displays connected to MacBook Pro (16-inch, 2019) from waking from sleep when the Mac wakes
Major new releases of macOS are no longer hidden when using the softwareupdate(8) command with the --ignore flag
This change also affects macOS Mojave and macOS High Sierra after installing Security Update 2020-003.

macOS Catalina 10.15.4

macOS Catalina 10.15.4 introduces iCloud Drive folder sharing, Screen Time communication limits, Apple Music time-synced lyrics view, and more. The update also improves the stability, reliability, and security of your Mac.

Finder

iCloud Drive folder sharing from Finder
Controls to limit access only to people you explicitly invite, or to grant access to anyone with the folder link
Permissions to choose who can make changes and upload files, and who can only view and download files

Screen Time

Communication limits for controlling who your children can communicate with and be contacted by throughout the day and during downtime
Playback control of music videos for your children

Music

Time-synced lyrics view for Apple Music, including the ability to jump to your favorite part of a song by clicking a line in lyrics view

Safari

Option to import Chrome passwords into your iCloud Keychain for easy AutoFill of your passwords in Safari and across all your devices
Controls for duplicating a tab and for closing all tabs to the right of the current tab
HDR playback support on compatible computers for Netflix content

App Store with Apple Arcade

Universal Purchase support enables the use of a singular purchase of a participating app across iPhone, iPod touch, iPad, Mac, and Apple TV

Pro Display XDR

Customized reference modes that you can tailor to specific workflow needs by selecting from several color gamut, white point, luminance, and transfer function options

Accessibility

Head pointer preference for moving a cursor on the screen based on the precise movements of your head

This update also includes bug fixes and other improvements:

High Dynamic Range output to HDR10-compatible third-party displays and TVs connected with DisplayPort or HDMI
OAuth authentication support with Outlook.com accounts for improved security
CalDav migration support when upgrading to iCloud reminders on a secondary device
Addresses an issue where text copied between apps may appear invisible when Dark Mode is active
Resolves an issue in Safari where a CAPTCHA tile may display incorrectly
Fixes an issue where you may receive notifications for updated or completed reminders
Fixes an issue with screen brightness for the LG UltraFine 5K display after waking from sleep

Enterprise content:

Apple Push Notification Service traffic now uses a web proxy when specified in a PAC file
Resolves an issue where updating the login keychain password after resetting a user password would cause a new keychain to be created
After enabling 'Search directory services for certificates' in Keychain Access preferences, searching by email address in Keychain Access or Mail now locates a user certificate stored in directory services
When setting the DisableFDEAutoLogin key in com.apple.loginwindow, you can now sync your FileVault password with the Active Directory user password after updating the user password
Reinstates the ability to update or restore iOS, iPadOS, or tvOS devices by dragging .ipsw files to the device in an Apple Configurator 2 window
Addresses an issue where sending the EraseDevice MDM command might not cause the device to be erased
When logging in as an Active Directory user after using deferred FileVault enablement, the user is now prompted for their password to enable FileVault

Some features may not be available for all regions, or on all Apple devices.

macOS Catalina 10.15.3

The macOS Catalina 10.15.3 update improves the stability, reliability, and security of your Mac, and is recommended for all users.

Optimizes gamma handling of low gray levels on Pro Display XDR for SDR workflows when using macOS
Improves multi-stream video editing performance for HEVC and H.264-encoded 4K video on the MacBook Pro (16-inch, 2019)

macOS Catalina 10.15.2

The macOS Catalina 10.15.2 update improves the stability, reliability and performance of your Mac and is recommended for all users.

This update adds the following features:

Apple News

New layout for Apple News+ stories from The Wall Street Journal and other leading newspapers

Stocks

Get links to related stories or more stories from the same publication at the end of an article
'Breaking' and 'Developing' labels for Top Stories
Stories from Apple News are now available in Canada in English and French

Xcode Macbook Air

This update includes the following bug fixes:

Music

Restores the column browser view for managing the music library
Resolves an issue that may prevent album artwork from appearing
Fixes an issue that may reset music equalizer settings during playback

iTunes Remote

Adds support for using an iPhone or iPad to remotely control the Music and TV apps on a Mac

Photos

Resolves an issue that may cause some AVI and MP4 files to appear as unsupported
Fixes an issue that prevents newly created folders from appearing in Albums view
Addresses an issue where manually sorted images in an album may be printed or exported out of order
Fixes an issue that prevents the zoom-to-crop tool from working in a print preview

Mail

Addresses an issue that may cause Mail preferences to open with a blank window
Resolves an issue that may prevent using undo from retrieving deleted mail

Other

Improves the reliability of syncing books and audiobooks to your iPad or iPhone through the Finder
Fixes an issue where reminders may be out of order in the Today smart list in the Reminders app
Resolves an issue that may cause slow typing performance in the Notes app

Enterprise content

Fixes an issue where the user password might not be accepted at the login window after upgrading a Mac with an Apple T2 Security Chip to macOS Catalina
Improves compatibility with video conferencing apps on MacBook Pro models introduced in 2018
Users logged in as a standard user can now install apps from the App Store

macOS Catalina 10.15.1

The macOS Catalina 10.15.1 update includes updated and additional emoji, support for AirPods Pro, HomeKit Secure Video, HomeKit-enabled routers, and new Siri privacy settings, as well as bug fixes and improvements.

Emoji

Over 70 new or updated emoji, including animals, food, activities, new accessibility emoji, gender-neutral emoji, and skin tones selection for couple emoji

AirPods support

AirPods Pro support

Home app

HomeKit Secure Video enables you to privately capture, store, and view encrypted video from your security cameras and features people, animal, and vehicle detection
HomeKit enabled routers let you control how your HomeKit accessories communicate over the internet or in your home
Adds support for AirPlay 2-enabled speakers in scenes and automations

Siri

Privacy settings to control whether or not to help improve Siri and Dictation by allowing Apple to store audio of your Siri and Dictation interactions
Option to delete your Siri and Dictation history from Siri Settings

This update also includes the following bug fixes and improvements:

Restores the ability to view file names in the All Photos view in Photos
Restores the ability to filter by favorites, photos, videos, edited, and keywords in Days view in Photos
Fixes an issue where Messages would only send a single notification when the option to repeat alerts was enabled
Resolves an issue that caused Contacts to launch to the previously opened contact instead of the contact list
Adds a two-finger swipe gesture for back navigation in Apple News
Resolves issues that may occur in the Music app when displaying playlists inside folders and newly added songs in the Songs list
Improves reliability of migrating iTunes library databases into the Music, Podcasts, and TV apps
Fixes an issue where downloaded titles were not visible in the Downloads folder in the TV app

Enterprise content

When using the built-in keyboard with a non-U.S. keyboard layout, passwords with certain characters are no longer rejected at the Mac login window
When sign in with Apple ID is not allowed by a configuration profile, the Sign In button in System Preferences is now dimmed

macOS Catalina 10.15

There are a number of CPU and GPU synthetic tests for Apple products. However, as iOS and macOS developers, we want to understand the real (but still relative) performance of iMac and MacBook in one of the most used tools - Xcode.

The Core Idea of Xcode Benchmarking

I created Xcode Benchmark to perform a compilation of a large project, measure the final time, and compare results with different Macs. I believe this project will save you money. As we will see later, it's not necessary to buy i9 for iMac 2020 (extra $400) or even iMac Pro (the 2017 model starts from $5,000) to compile pretty fast.

Xcode Benchmark it's an iOS framework that consists of 42 popular CocoaPods libraries and 70+ dependencies in total.

Keep in mind that the majority Magic keyboard connect to pc. of projects probably do not have such a huge codebase, and performance differences might be less accordingly.

iMac, MacBook Pro, iMac Pro Performance in Xcode

Here are the results of iMac, MacBook Pro, iMac Pro benchmarks with different configurations of CPU, RAM, and SSD.

The up to date list is always available on the project page.

As we can see, even the base iMac 2020 model outperforms iMac Pro 2017 ($2,300 vs $5,000) in Xcode. I personally think it mostly related to the higher frequency (3.8 GHz vs 3.0 GHz and 5.0 GHz vs 4.8 GHz using TurboBoost) and manufacturing years.

The size of RAM and SSD do not change results significantly. 16GB of RAM and 512GB of SSD is enough for apps and files I use today.

Summary

There are several points to mention:

Despite Xcode Benchmark implements a real-world use case, it is still a syntactic tool that shows approximate results in Xcode.
The results might differ on Xcode and macOS versions, codebase, thermal conditions, and overall system load.
It's very welcome to contribute your results and suggest ideas on the benchmarking process.
Xcode Benchmark is originally created for Max Tech YouTube channel to measure the performance of new iMacs 2020. They made a number of benchmarks for other use cases such as video-, audio-, photo- editing, and gaming.

I also recommend checking out other articles to get a deeper understanding of Swift String's performance and the concept of Side Table.

Efficient Random Access on Swift String.
Discover which problems random access may cause on Swift String and how to perform it efficiently.
Discover Side Tables - Weak Reference Management Concept in Swift.
Let's take an in-depth look at weak references in Swift and learn the concept of Side Tables.

By the way, let's be friends on Twitter.