MacOS on Frank Zhang: Engineering Noteshttps://www.fzhang.dev/en/categories/macos/Recent content in MacOS on Frank Zhang: Engineering NotesHugoenMon, 09 Nov 2026 10:00:00 +0800corespotlightd high CPU on Mac: read-only diagnosis before you delete anythinghttps://www.fzhang.dev/en/posts/corespotlightd-high-cpu/Mon, 09 Nov 2026 10:00:00 +0800https://www.fzhang.dev/en/posts/corespotlightd-high-cpu/High CPU from corespotlightd is a reason to look first. These notes do not treat deleting the Spotlight index, or CoreDuet, as the starting step.