![]() Here's a wild one: Sometimes the CPU graph behaves in a way that is very specific, so I can actually tell when some fluid simulation software I have is doing a specific thing, just by looking at particular spikes, spacing between spikes and the distribution between user and system CPU consumption. And sometimes OSX, will actually page so heavily that I, untimely, do run out of disk space, meaning the computer completely stops functioning and I must forcibly reboot, or alternatively, wait 30 minutes before it comes back again. A simple glance at the disk space meter will do. You can also quickly and easily tell, if your webbrowser is causing trouble on specific websites, just by going on a website and quickly glance at the CPU graph and see if it's moving up a little.Īm I running out of disk space? No need to get hold of a Finder window. ![]() I've used this to control a Macbook Pro with broken fans, so it made less noise. Did my render complete in 2 hours or 7 hours, while I was away? Is the CPU running hotter during the day than at night? Am I gaining or losing disk space? IStat Menu also stores resource consumption information over the last hour, the last 24 hours and over 7 days, so you can tell, when the computer consumed more resources recently and for how long. I know what's happening, and I let it finish. What's it doing? I look in the menu for disk activity and a very specific program is churning away on my second USB drive and has been doing that for 6 minutes. ![]() It's a great way to tell when programs are being nasty with the resources. Why is the computer slow as hell with the display stuttering like crazy? A quick glance shows that the GPU memory has been consumed by Substance Painter. iStat Menu shows GPU usage and GPU memory usage for all GPUs connected to the system in one single glance. Then I monitor the GPU performance: Using CUDA and OpenCL programs, it's often difficult to tell whether the GPU is actually using those frameworks through the programs themselves. I've used this to improve the cooling of my Macbook Pro with better and quieter external fans, so the machine can run quietly 24/7. You can tell, if your network is being used unnecessarily or if it's running slower than usual, and it displays every single temperature sensor in the machine in a menu, so you can tell which part of the computer is hotter than other areas. iStat Menu lets you know this immediately by showing spikes and also brings you all the clues immediately as to why it's happening, so you can do something about it in an intelligent way rather than just hold down the power button or spend a few seconds troubleshooting a problem instead of a whole afternoon. For more info check out iStats on github.OSX isn't infallible and indeed, when you run programs that are resource hungry, they can bog down the Mac, both in CPU, disk and RAM resources. To know which parameters you can use, type iStats -h in Terminal to get a list of all the parameters supported by iStats ( for references check first photo ).ĥ. If you want to go a step forward with iStats, you can use parameters. Which will return something like:Īs you can see, this tool is even more useful on any Apple laptop as it provides an easy to read list of battery stats.Ĥ. To use iStats is as simple as calling iStats with no parameters in the terminal. ( I already had iStats installed so your installation terminal output might look different – the screenshot is just for reference )ģ. Once Ruby is installed, you can easily install iStats with the following command sudo gem install iStats. To check if the installation was successful type ruby –version.Ģ. Once Homebrew is installed, installing Ruby is at easy as typing brew install ruby in terminal. However, if you don’t have it installed, you can easily install it via Homebrew ( click on homebrew to learn how to install and use it ). Ruby should be included by default in macOS if you’re running macOS 10.11 El Capitan or later. IStats is simply a free macOS command-line tool that allows you to easily grab the CPU temperature, fan speeds, battery stats etc.ġ. Not to be confused with iStat Menu, a closed source GUI tool that costs $10 and does similar things. Here’s a nifty little Ruby gem that allows you to read your Mac’s sensors in Terminal – iStats.
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