applessdstatistics consuming too many reads

Hi all,

I suffer the same issue here on a late 2009 iMac, and indeed the above trick worked for me as well. Silence at last. What I did notice is that I have to repeat the action manually each time in terminal window. Is there a way to kill this process applessdstatistics automatically after reboot?

Appreciate your help

Richard

I guess I should point out that "unload" is a "legacy" verb in launchctl, so this method of disabling a Launch Daemon will likely stop working at some point in the future.

The new way would be to use "disable," but I'm not sure of how to put in the path to it.

I would imagine the legacy verbs will remain for a while.

I used the command Barney-15E did post. So now the Problem is permanently solved (also after a reboot). But as it seems to be a pure iMac 2009 Problem, how big is the probability that Apple will fix that in a future update or patch?

Coming up with that I would have the following question:

If it would be solved by an update, is there then anything to do with the "launchctl" file? I want to say: do I then have to delete / unload that command in some way, to avoid future Problems? Or is with a new Sierra update this file "reset" to Standard anyway?

Maybe a stupid question, but for the last 7 years I never had to care about any terminals and "sudo" commands - that's why I changed to Apple...

To revert to it automatically being enabled, use "load" instead of "unload"

An update may revert it for you, but I don't know.

I ran across some other similar posts last night and perused them. One simple solution to the problem was to boot into Safe Mode and that allowed it to finish whatever task it was stuck performing.

Is there a way to kill this process applessdstatistics automatically after reboot?

This should disable it:

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.applessdstatistics.plist

I don't have any information about this, other than it is the same on my system, we have to tolerate that apple collects some data, but this is very aggressive....😐

I have the same problem on my old iMac (2009) that does not have any SSD. As workaround I have stopped this process with

sudo launchctl unload /System/Library/LaunchDaemons/com.apple.applessdstatistics.plist

Then my hard disk is much quieter and I have not noticed any problems

Ivona 's suggestion solved it for me. The process constantly read hundreds of MB/sec and my normally quiet iMac, 2011 rattled the HDD, no SSD, all the time.

Previously I had tried:

logged out, back in no change.

restarted, took an excessive amount of time, rattling the disk the entire time and no change.

powered off (just in case), powered on, logged in still slow, still rattling the disk. So, no change.

Did the sudo suggestion. It slowed down dramatically. For a few more minutes Activity Monitor reported 0 read/sec, 0 write/sec but the disk was still rattling (seeking between multiple tracks) and finally it stopped. Now it works as before.

Thank you for this solution!

I had the same problem on my 2009 iMac (with a "normal" hard disk) since OS Sierra 10.12.2. The applessdstatistics did read out from the hard disk all the time. Going up to about 4 GB, then restarting at 0 again. It did do that for 40 hours non stop with about 2-5 MB/s (I watched it over the christmas days...). At the end, I had in the activity monitor a "read data" of about 400 GB, and the applessdstatistics still working, harddisk still ratteling all the time, making me very nervous.

Today I used your command - no I do have my nice and quiet iMac back again!

Only remark from my side (as I do not use the terminal and such functions too often): you have to do this command when logged in as an administrator. With my Standard-User rights it did not accept the command.

Ivona, thank you again and have a happy new year 2017!

Hi Ilona,

thanks a lot for your positing and solution.

For a long time a have the same problem and today i analyzed the tasks with monitor.

And correct the task "applessdstatistics" read in a short time so much data that all other activities are very slow and the noise of system is incredible.

Wir your workaround my systems stops immediately the tasks and as of now all is fine with the performance of the old system.

Thanks for your posting and have a happy new year 2017 !

Greetings Klaus

🙂 Worked, thx!

Thanks Barney-15E and Ivona, now my iMac 27 Late 2009 is usable again after the macOS Sierra 10.12.2 update :-)

Any idea what 'applessdstatistics' exactly does do?

No, I don't know what it does.