com.apple.Safari.History using large amounts of my CPU

Update... I think I've resolved the issue on my MacBook Pro.

I'm not the original poster, but I was having the same issue.

I tried clearing the History with the Safari Menu (as suggested above), but it didn't work for me.

However, I found an older thread that offered a suggestion that worked...

It basically says to go into your ~/Library/Safari and move the History* files (so that Safari creates new files).

Here's the link:

https://discussions.apple.com/thread/7353687

For those interested, here are my results...

Here's what my Activity Monitor looks like now. (1 hour ago it was at 99% for com.apple.Safari.History)

As you can see above, Safari is open but com.apple.Safari.History is at 0.0% (not doing much, which is good). Look at the next column. I sorted by CPU Total (about 10 days), so you could see that prior to the fix it was using more CPU in the past week than all of the other processes combined... way more.

Safari stores its history in a sqlite3 database, which it must open and update as your history changes. The longer you wait to clear history, and the more frequently your browser actions require logging new history items, the larger the database grows. If you haven't cleared all browser history items in months, the history database processing requirements continue to increase.

If you visit Safari > Clear History… [ all history ] and click Clear History, then quit Safari. When you launch Safari again, does com.apple.Safari.History still consume 100% CPU?

https://discussions.apple.com/docs/DOC-250002463 Please give us an Etrecheck readout. Some other network software may be disrupting your communication.

Same here!!!

Ever since installing Big Sur (10 days ago) my battery lasts 2-3 hours instead of 10.

This is unacceptable!

I grow tired of guesses and theories (reboot, clear cache, reset SMC, etc). Those things have a huge time cost to the end user.

Looking for a root-cause, please. And then a Fix.