Have you ever seen the spinning beach ball in Safari? That often happens when you’ve run out of memory and virtual memory is being used. If all the memory is used up, my computer will start to use virtual memory and the whole machine will see a marked decrease in performance. All those apps need a certain amount of memory allocated to run effectively – in my case, they’re using 4.43 GB of my Mac’s RAM, and the more apps that are open, the more memory will be used. As I’m writing this article, I already have 7 apps open (Safari, iTunes, Messages, Skype, Activity Monitor, Mail, and Finder) and many processes. Virtual memory can be critical to your Mac, simply because there often isn’t enough physical memory to run all the apps that you have open. Unfortunately, virtual memory is much slower than the physical RAM installed in your computer, because hard disks cannot match the speed of memory chips. If Mac OS X needs to use all 4 GB of main memory, it can still make use of any free space on your hard disk as an extension to that memory.
Let’s say that you have 4 GB of main memory on your Mac and a 512 GB hard disk. This is where virtual memory comes in – you can think of it as a kind of extension to the real memory on your system, albeit much slower because it is in fact physical space on your hard disk (or SSD, if you have one installed). Nevertheless, every computer has a finite amount of memory so Mac OS X might actually need to use more than is physically available on your system. Memory must be as fast as possible (and it helps to have as much as possible) to maximise your Mac’s performance thankfully, prices have drastically fallen in recent years. Memory is critical to any computer to run applications and carry out all the operations commanded by the user. I'm hoping that MS did this to quickly get their fancier background processing out the door to better compete with Zoom, and that they'll eventually add AVX 1.0 machines back into the mix in a subsequent version as they get more time.Your Mac comes with a limited amount of physical memory (RAM) installed by default. Smells like lazy developers.Īt the very least, MS should still support Background Blur on AVX 1.0 machines, and leave the fancier background images to AVX 2.0, even though I don't see that as necessary. The question is why AVX 2.0 is even needed.Zoom and many other developers do this on a wide range of machines without limiting it to newer processors, and MS previously support Background Blur on these AVX 1.0 machines (like previous-generation Mac Pros). You must use sysctl - a | grep avx and look at the hw.optional.avx2_0 line to see if it's supported or not. That command returns only "AVX1.0", even if the CPU supports AVX 2.0. As the command sysctl -a | grep is not sufficient to check a given Mac's ability to support AVX 2.0.
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