Just like the iStat Pro widget, it gives users a helpful overview of what is happening on your Mac, peppered with some handy visuals. XRGĪvailable as an open-source system monitor for Macs, XRG allows you to monitor CPU and GPU activity, memory usage, battery status, machine temperature, network activity, disk I/O, current weather, and stock market data. While the TG Pro trial gives 10 days of free testing, it unfortunately limits the data it displays and therefore pushes users to purchase a license for $18. This Mac monitoring app will display quick temperature info in the menu bar, but to gain access to all the information available you’ll need to either click on the TG Pro item to see a quick overview of the data or launch the app and get visual information for the targeted segment. What TG Pro does is provide control over the fan speed to cool down your Mac's hardware, which is especially useful on hot summer days when Macs tend to overheat. In addition, TG Pro offers a color-coded visual explanation of what is happening with the computer's internals: green means that you can relax, orange that the hardware is approaching its limits, and red represents that it is very close to the thermal limit. That's a very important feature if you want the computer to deliver optimal performance. While iStat Menus only displays information, TG Pro goes one step further and offers an option to control your Mac's fans, along with offering an overview of the sensor data that macOS gives access to. Short for Temperature Gauge Pro, this tool could become a Mac monitoring utility that you become attached to. The Family Pack allows iStat Menus to be used on up to five Macs within the same household. Bjango's iStat Menus can be trialed for 14 days for free, but after that you'll need to purchase a license for $18 or upgrade for $9.99 if you already happen to own version 3 or 4. IStat Menus, however, lets you monitor only the CPU, GPU, memory, disks, network, sensors, battery, power, time, or any combinations of these. That's a nice advantage over the competing apps, even Bjango's own iStat widget which only displays all the information in one window. Customize the data by turning on the monitoring only for what you want it to keep an eye on. If you want more data and visuals, just click on the desired item. One of the best things about iStat Menus is that there is a quick view for the essential data right in the menu bar. You may already be familiar with the iStat Pro widget from the same developer, which displays the same data in the dashboard. iStat MenusĪvailable as a separate purchase or via Setapp, Bjango's iStat Menus is one of the best Mac monitoring apps available. This is something no third party app has the permission to do, despite having access to all the sensor information data and displaying it in an easy-to-read design. And even fewer understand how to properly use Activity Monitor to manage memory usage, fix slow apps, and troubleshoot various many other issues.Īctivity Monitor's advantage over all third party Mac monitoring apps is its ability to inspect and even kill a process that requires too many hardware resources. macOS has a built-in system monitoring utility called Activity Monitor, which may be unfamiliar to most casual Mac users. This percentage is based on the SUM of the process' usage of both user and system CPU time.Your computer is equipped with a lot of sensors so that the system can keep an eye on the health of the hardware. In the top part of Activity Monitor you'll see the percentages of CPU time that each program has used. This does not mean that "the system" is somehow sucking up 70% of the CPU time taking it away from your programs - rather it means your programs have asked the system to do stuff for them - and that takes 70% of the CPU time. 70% is used in "system space", 20% in "user space" and approx. In doing so work is transitioned to "system space" and thus taking up "system CPU time".Īctivity Monitor shows you this split of your CPU usage. To do this safely, they need to ask the system to perform these tasks for them. They need to access privileged resources such as a reading files from a disk, sending information on a network, etc. However most programs do not live on an island. This would involve the various computations and data juggling that your program does by itself. The programs you're running will have their code running in "user space" consuming "user CPU time". In order to interpret the screenshot, you'll need to know that modern computers are designed to have their work load split between what is known as "user space" and "system space" (also known as kernel space). What you're seeing is not "the system" (as a separate entity) using up your CPU time so that "your programs" are not getting their fair share.
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