How much Data Read / Written since your last restart?

[NewToAMBP]

Just a random question.

I opened up Activity Monitor and never thought I would see the numbers I saw. How about you? I dont restart that often and dont remember when I did.

Read : 721.46 GB
Written: 397.35 GB

Should I restart more often?

 

[zevrix]

You don't need to restart until there's a particular need to restart.

These numbers are just stats; in fact I didn't even know these stats were there in Activity Monitor. You don't need to undertake any action or experience any emotion as a result of seeing these numbers.

 

[iMac2019]

I dont restart that often and dont remember when I did.

FYI, you could use
$ who -b
system boot 2024-10-14 09:03
or
$ last

How to see your Mac's uptime, reboot and shutdown history

Learn how to see your Mac's uptime, reboot history, and shutdown history using Terminal and System Information.

www.idownloadblog.com

 

[gilby101]

Just a random question.

I see the same thing - only worse.

I normally only reboot for updates, but I did reboot yesterday and in the intervening 25 hours I have
Read : 458 GB
Written: 399 GB

Also, when I am not active in front of the Mac, the CPU is fairly heavily consumed by mediaanalysisd and mds_stores with combined CPU time of 34 hours in the past 25 hours. Those numbers look like nonsense but this is an 8 core (16 thread) processor. And that is not counting usage by transient processes like mdworker.

This started with macOS 15 and continues with 15.0.1. I am hoping this is fixed in 15.1

I believe both CPU and disk usage is due to some bug with the media/content analysis of photos - in Photos libraries and/or the file system.

macOS 15.0 and 15.0.1 running on 2019 iMac with 8-core Intel i9.

Edit: @NewToAMBP Are you seeing this on an Intel Mac? I am not getting this behaviour on my M3 MBP - only with my Intel iMac.

You don't need to undertake any action or experience any emotion as a result of seeing these numbers.

Maybe can't take any action, but writing 400 GB per day is not good for SSDs - in my case to external TB 3 and USB 3.1 SSDs. In my view some action is required - I am on the point of considering going back to macOS 14. But will probably stick it out until 15.1.

Edit:
@NewToAMBP have a read of https://appleinsider.com/inside/mac...mediaanalysisd-from-hogging-your-cpu-in-macos. Whilst this starts with the CPU load (rather than disk utilisation) it is focussed on the problems with mediaanalysisd on some Macs. it is certainly the cause of my excessive disk writes, so I will explore modifying its behaviour rather than disabling Spotlight on my external disks.