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With Catalina (10.15) latest as of 21091020, with Safari running with no activity, fs_usage shows all sorts of disk activity resulting in TimeMachine updating ~1GB/hour. This is way too much. With no Safari running, it's more like 85MB-250MB. What is up?
iMac 21.5" 4K, macOS 10.15
Are you running any anti - virus programs? Using a VPN?
Try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.
Isolating an issue by using another user account
If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply. Pastebin
Etrecheck – System Information
Are you running any anti - virus programs? Using a VPN?
Try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.
Isolating an issue by using another user account
If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply. Pastebin
Etrecheck – System Information
Well, allright. Yes, I use a VPN (Avast) but whether it's activated or not doesn't seem to matter wrt this disk activity. For now, I'm just using Firefox and things are good... with VPN loaded and active. I will try your other suggestions as time permits. Thank you. What you suggest is diagnostic rather than curative, which is good. It might help somebody figure out what's up. To me, though, a stdout from fs_usage might be useful (writes from kerneltask.xxx). Right now I'm erasing a new Passport drive. Good grief that takes a long time on USB 3. Cheers and best wishes.
You are welcome.
Safari 13.0.2 makes a LOT of disk traffic
