On OSX, there is no futex. Acquiring a mutex requires always talking to the kernel. Moreover, OSX is a micro-kernel hybrid. That means to talk to the kernel, you need to send it a message. This means you do data marshalling, syscall, copy the data to a separate buffer.

macos - How to simulate slow internet connections on the Apple has made a very handy official tool to slow down the network connections on you Mac for testing purposes. The Network Link Conditioner preference is a free download from within Xcode (for Lion and later OS). Additionally, iOS has similar function accessible from within Xcode and iOS 6 or later. How to Fix Slow Internet Problems After macOS Sierra After getting the upgrade, I tried to browse the web using Google Chrome, but the internet speed was very slow. General fixes like rebooting the modem didn’t do the trick. It was evident that my Wi-Fi was slower than usual and updating to macOS Sierra definitely caused … Is your Mac Running Slow? Here are 10 Tips to Speed It Up

Jun 19, 2019

On OSX, there is no futex. Acquiring a mutex requires always talking to the kernel. Moreover, OSX is a micro-kernel hybrid. That means to talk to the kernel, you need to send it a message. This means you do data marshalling, syscall, copy the data to a separate buffer. Excel and Word slow to open - Microsoft Community

MacOS Mojave running too slow - | MacRumors Forums

Apr 20, 2015 Mac troubleshooting: What to do when your computer is too slow For many Mac users, a slow Internet connection is synonymous with a slow computer. That’s because almost everything they do—from surfing the Web to checking email—requires Internet access. macos - How to simulate slow internet connections on the Apple has made a very handy official tool to slow down the network connections on you Mac for testing purposes. The Network Link Conditioner preference is a free download from within Xcode (for Lion and later OS). Additionally, iOS has similar function accessible from within Xcode and iOS 6 or later.