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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: 1552071" data-attributes="member: 314949"><p>Thanks to each and all of you for the brainstorming and troubleshooting suggestions. It helps to get other perspectives on the symptoms.</p><p></p><p>Rather than using a shotgun approach, I want to leave the hardware as-is for now, and try to eliminate the most likely software possibilities first. Focus on the two symptoms: </p><p></p><p>1.) Finder CPU hogging (which is very consistent and continuous) and </p><p></p><p>2.) Periodic beachballs or freezes (which are very predictable and regular, lasting 30 seconds every half hour.) </p><p></p><p>I want to eliminate as many probable software issues before doing any hardware down-grades. Restoring hardware to the prior conditions is often a logical troubleshooting plan, but in this case the symptoms seem more likely to be software-related, not hardware. </p><p></p><p>Searching for <strong><em>Finder runaway process</em></strong> there were many others discussing the problem, and lots of suggestions.</p><p></p><p>To answer some questions:</p><p></p><p>For Time Machine, I only plug in the external drive about once a day to do a daily backup. Having the external drive connected all the time is overkill and could be unsafe for reliability reasons. When the backup is done, I eject the drive and unplug it. </p><p></p><p>I've cleaned up a few probable issues, such as eliminating all non-essential startup items and filing away most of the desktop folders, especially a few larger ones. Finder menu bar, select View -> Show View Options; uncheck "Calculate All Sizes"; Click "Use as Defaults". Done. There were some big folders that had calculate sizes checked, but it should not take more than a few hours to calculate all sizes for 500GB on a fast hard drive.</p><p></p><p>The CPU temperature is averaging about 70 C which is on the upper side of normal range (when the CPU is fairly busy.) Average fan speed is about 2100 RPM which is also in the normal, green range (using the Temperature Gauge app from Tunabelly Software.) So over-temp is probably not throttling, which could cause freezes.</p><p></p><p>Next, I will try rebooting in Safe-mode (booting with the <shift> key held down) and run for awhile to see what happens.</p></blockquote><p></p>
[QUOTE="GeoFan49, post: 1552071, member: 314949"] Thanks to each and all of you for the brainstorming and troubleshooting suggestions. It helps to get other perspectives on the symptoms. Rather than using a shotgun approach, I want to leave the hardware as-is for now, and try to eliminate the most likely software possibilities first. Focus on the two symptoms: 1.) Finder CPU hogging (which is very consistent and continuous) and 2.) Periodic beachballs or freezes (which are very predictable and regular, lasting 30 seconds every half hour.) I want to eliminate as many probable software issues before doing any hardware down-grades. Restoring hardware to the prior conditions is often a logical troubleshooting plan, but in this case the symptoms seem more likely to be software-related, not hardware. Searching for [B][I]Finder runaway process[/I][/B] there were many others discussing the problem, and lots of suggestions. To answer some questions: For Time Machine, I only plug in the external drive about once a day to do a daily backup. Having the external drive connected all the time is overkill and could be unsafe for reliability reasons. When the backup is done, I eject the drive and unplug it. I've cleaned up a few probable issues, such as eliminating all non-essential startup items and filing away most of the desktop folders, especially a few larger ones. Finder menu bar, select View -> Show View Options; uncheck "Calculate All Sizes"; Click "Use as Defaults". Done. There were some big folders that had calculate sizes checked, but it should not take more than a few hours to calculate all sizes for 500GB on a fast hard drive. The CPU temperature is averaging about 70 C which is on the upper side of normal range (when the CPU is fairly busy.) Average fan speed is about 2100 RPM which is also in the normal, green range (using the Temperature Gauge app from Tunabelly Software.) So over-temp is probably not throttling, which could cause freezes. Next, I will try rebooting in Safe-mode (booting with the <shift> key held down) and run for awhile to see what happens. [/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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