Check CPU, Memory, Network and Disk Usage While Working on Mac

To keep an eye on your Mac while working, enable the system metrics you need in Frset's menu bar monitoring settings. You can display CPU usage, memory usage, upload and download rates, and disk occupancy. Read them as a quick overview of current activity, then investigate with a more detailed tool when necessary.

Put the useful figures in the menu bar

1. Open Frset settings and find Menu Bar Monitoring.
2. Enable the metrics you want: Network, CPU, RAM or SSD.
3. Return to your usual work and watch how the values change during a known task.
4. Compare the busy period with the period after the task finishes.
5. Leave only the metrics you find useful enabled so the menu bar stays readable.

A short file transfer or build is a better first reference than a single unexplained number. A dash means a reading is not yet available or could not be obtained; it should not be interpreted as zero usage.

CPU: current activity, not a diagnosis

CPU usage summarizes processor activity. A higher reading during a build or local AI request can help explain what the Mac is busy doing, but it does not identify the responsible process by itself.

Look at whether activity drops after the expected work ends. If you need to find which app is using the processor, open macOS Activity Monitor and inspect its CPU view. Frset's overview does not replace a process-level investigation.

If you choose Frset's animated fan icon, its animation responds to CPU usage. It is not a hardware fan-speed reading or a fan controller.

RAM: usage percentage and memory pressure are different

Frset displays a memory usage percentage calculated from physical memory and reclaimable memory information. It is not the Memory Pressure graph in Activity Monitor. Those readings have different definitions and should not be expected to match.

For memory pressure, open Activity Monitor and select Memory. Apple's memory usage guide explains how pressure relates to the system's ability to meet memory needs. Inspect that view and the relevant processes when a memory number accompanies an actual slowdown.

Avoid treating one percentage as a verdict that memory must be cleared. Compare it with the task, system behavior and more detailed information. If you are trying a local Ollama model, include the model's resource needs in that investigation.

Network: traffic now, not maximum connection speed

Upload and download figures show observed transfer rates on the monitored interfaces. They do not measure the maximum speed of your internet plan or prove that a remote service is healthy.

During a download, a changing rate can help you tell whether data is moving. A low rate can also mean there is little to transfer. Use a dedicated network investigation when you need to distinguish a remote server problem from a local connection problem.

SSD: occupied capacity, not read/write throughput

Frset's disk percentage describes occupied capacity on the root volume. It is not a disk speed benchmark, a read/write activity meter or a combined view of every external drive. After removing files, allow the reading to refresh rather than expecting every system indicator to change at exactly the same moment.

If you need a file-by-file storage breakdown, use macOS storage tools. If you need to investigate ongoing I/O, use the relevant Activity Monitor view. Choosing the right measure is more useful than interpreting every disk-related number as the same thing.

Use the overview to guide the next check

Start with a concrete question: is the expected transfer still active, did the build finish, or is the local model still working? Observe the related metric, then use the more detailed system tool if the behavior needs explanation.

Frset brings those quick checks into the same app as clipboard work and custom text tools. It provides a convenient overview without promising to diagnose every slowdown from menu bar figures alone.