Memory leak El Capitan

In the last few months I’ve noticed that the memory is leaking badly, I can use a 3rd party app to free it up…. Am I paranoid to think I’m being manoeuvred into buying a new computer? This one is only 13 years old, barely broken in!

MacBook Pro 13″, macOS 10.13

Posted on Oct 26, 2023 6:44 AM

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Posted on Oct 26, 2023 8:24 AM

Except when I used the 3rd party app the computer doesn’t lock up and need a hard power off to get restarted.


That sounds like you have a software interference at play, not an OS issue or RAM issue. Any anti-virus or so-called "cleaning" apps can do that.


And please— share the identify of the "third-party app." The senior contributors here have a long history with most.


And, as Grant points out, Memory Used ceased to be a viable metric for Macs in 2013. The current indicators are Memory Pressure and Swap Used. Both can be viewed with the built-in utility Activity Monitor. Here are memory use data for my older iMac after I installed macOS 10.9:



After viewing Memory Used, notice:

  • Pressure is as low as can be displayed
  • Swap is ZERO.


What you cannot see is that the computer performance was absolutely normal and stable with those numbers showing. That computer has never had any useless third-party cleaning or antivirus apps installed.

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Question marked as Top-ranking reply

Oct 26, 2023 8:24 AM in response to MudGuru

Except when I used the 3rd party app the computer doesn’t lock up and need a hard power off to get restarted.


That sounds like you have a software interference at play, not an OS issue or RAM issue. Any anti-virus or so-called "cleaning" apps can do that.


And please— share the identify of the "third-party app." The senior contributors here have a long history with most.


And, as Grant points out, Memory Used ceased to be a viable metric for Macs in 2013. The current indicators are Memory Pressure and Swap Used. Both can be viewed with the built-in utility Activity Monitor. Here are memory use data for my older iMac after I installed macOS 10.9:



After viewing Memory Used, notice:

  • Pressure is as low as can be displayed
  • Swap is ZERO.


What you cannot see is that the computer performance was absolutely normal and stable with those numbers showing. That computer has never had any useless third-party cleaning or antivirus apps installed.

Oct 26, 2023 8:14 AM in response to MudGuru

MudGuru wrote:

Except when I used the 3rd party app the computer doesn’t lock up and need a hard power off to get restarted.


Something is clearly wrong with that. I have an old iMac running El Cap and it is not so afflicted. Everything works, with the exception of newer websites that demand more recent browsers. Even in that case, Firefox often works. That Mac has not been rebooted in months, perhaps years.


Fix the problem, not the symptom. If you don't know where to begin, start by using EtreCheck: How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report - Apple Support.


Caveat: I do not know if EtreCheck will run on El Cap or not, or if its developer offers an older version that will. You can contact him through his website.

Oct 27, 2023 9:41 AM in response to John Galt

I took the majority’s advice and moved the 3rd party app to the trash folder and rebooted. I’ve been watching the memory usage on Activity Monitor, the green bar is all the way across the bottom line of the memory pressure display and no lock up after a period of time longer than it ever lasted before.


so, mea culpa, you guys got it right I was stupid and wrong, Thank you!!!

Oct 26, 2023 6:58 AM in response to MudGuru

I won't presume to speak for Apple but the likely response would be to upgrade the application and the operating system version, particularly for something as old as El Capitan which stopped seeing support several years ago. The issue may well have been solved several years ago by either of those. If you cannot or do not want to upgrade your computer to accommodate a newer system version and the developer is not updating the application for your OS anymore then you are kind of stuck. I am being pragmatic here.


I have a memory leak with an app I use on an even older OS and I just have to live with restarting the computer once a day.

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Memory leak El Capitan

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