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Apple Computing Products:
macOS - Operating System
Like clockwork, MacBook Pro freezes for about 30 seconds every 20-30 minutes... Why?
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<blockquote data-quote="GeoFan49" data-source="post: 1552073" data-attributes="member: 314949"><p>After the Safe-boot, Finder ran at 60-90% for about 10 minutes while the Mac was mainly idle, only running Activity Monitor and the temperature gauge app. CPU average temp at 50 C, fan at 2000 RPM, cool and quiet. </p><p></p><p>After about 10 minutes busy, Finder settled down to average less than 10% CPU for more than 5 minutes. The entire system was mostly idle, both CPU and IO, during that time, as shown in Activity Monitor. </p><p></p><p>Created an empty, untitled folder on the desktop, and Finder went back to 60-90 % CPU, with lots of Disk Activity (reads, not writes, i.e. 100:1 ratio, reads to writes) showing up in Activity Monitor, which lasted more than 5 minutes. </p><p></p><p>It is as if throwing a rock (empty folder) into the pond (desktop folder) caused ripples (Finder CPU hogging) for a long time...</p><p></p><p>Update: This behavior is highly repeatable. Same thing happened <strong>three times out of three tests.</strong> (Yes, view options, calculate all sizes, is NOT set.). This is as if the Finder goes into some kind of disk testing or garbage collection mode on any slightest whim.) Cannot observe the freeze/beachball issue while in Safe mode.</p></blockquote><p></p>
[QUOTE="GeoFan49, post: 1552073, member: 314949"] After the Safe-boot, Finder ran at 60-90% for about 10 minutes while the Mac was mainly idle, only running Activity Monitor and the temperature gauge app. CPU average temp at 50 C, fan at 2000 RPM, cool and quiet. After about 10 minutes busy, Finder settled down to average less than 10% CPU for more than 5 minutes. The entire system was mostly idle, both CPU and IO, during that time, as shown in Activity Monitor. Created an empty, untitled folder on the desktop, and Finder went back to 60-90 % CPU, with lots of Disk Activity (reads, not writes, i.e. 100:1 ratio, reads to writes) showing up in Activity Monitor, which lasted more than 5 minutes. It is as if throwing a rock (empty folder) into the pond (desktop folder) caused ripples (Finder CPU hogging) for a long time... Update: This behavior is highly repeatable. Same thing happened [B]three times out of three tests.[/B] (Yes, view options, calculate all sizes, is NOT set.). This is as if the Finder goes into some kind of disk testing or garbage collection mode on any slightest whim.) Cannot observe the freeze/beachball issue while in Safe mode. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Like clockwork, MacBook Pro freezes for about 30 seconds every 20-30 minutes... Why?
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