What your Mac is actually doing.
Plain-English write-ups of the processes people search for after seeing them eat their CPU, and the reasons a Mac slows down.
How to Show Memory Usage in the Mac Menu Bar
Put a live RAM reading in your Mac menu bar, choose a percentage or GB, and understand when to check memory pressure instead of worrying about a high number.
Read it → 29th October, 2026What Is appstoreagent on Mac? Checking High CPU
appstoreagent supports the Mac App Store. Check its identity, see whether updates are in progress, and investigate sustained CPU use without deleting caches.
Read it → 29th October, 2026What Is cloudd on Mac? CloudKit and High CPU
cloudd supports CloudKit syncing for apps. Check its identity and CPU activity, understand how it differs from bird, and investigate without resetting iCloud.
Read it → Updated 29th October, 2026What Is kernel_task and Why Is It Using So Much CPU?
kernel_task can show hundreds of percent CPU when your Mac is hot. What Apple says it is doing, how to find the app behind the heat, and what helps.
Read it → 29th October, 2026What Is photolibraryd on Mac? Photos and High CPU
photolibraryd handles Photos library requests. Learn how it differs from photoanalysisd, check library and iCloud status, and investigate persistent CPU use.
Read it → Updated 29th October, 2026What Is trustd and Why Is It Running on My Mac?
trustd evaluates certificate trust for every process on your Mac. Why there are several copies, why it can use the network, and what to check first.
Read it → Updated 29th October, 2026What Is WindowServer and Why Is It Using So Much CPU?
WindowServer draws and composites everything on your Mac screen. Why displays, scaling and busy windows raise its CPU use, and what to try first.
Read it → 29th October, 2026Why Mac CPU Usage Can Go Over 100%
A Mac process can use 200% or more CPU without the reading being wrong. Understand per-core percentages, total CPU load, and when high usage needs attention.
Read it → 27th October, 2026Mac Swap Memory Explained: When High Usage Matters
What Swap Used means on a Mac, how to check it, and how memory pressure and your workload tell you more than a fixed GB limit. No swap-file deletion needed.
Read it → 13th October, 2026Mac Background Processes Explained: What They Are
What all those processes in Activity Monitor on a Mac actually are, which ones are yours, which belong to macOS, and the ones worth looking up.
Read it →Stop staring at numbers.
Keep your Mac's important signals one glance away, and get a useful answer when something does not look right.
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