If you're seeing this message but the listed applications don't seem to explain the supposed excessive memory consumption, check whether non-application processes might be behind it. They'll be listed in the Memory tab of Activity Monitor, but won't appear in that dialog.

I was being barraged by this dialog with neither the listed applications nor free disk space explaining the supposed problem. Turns out I had some a few UNIX processes using unusually large amounts of memory. Quit them (didn't even have to force quit) and the barrage stopped immediately. It's a good idea to do a little online research into what any such processes are and do before force quitting them, as some may have significant bad effects on the system if killed. Depending on the process, it may be preferable to restart the system.

If you're seeing this message but the listed applications don't seem to explain the supposed excessive memory consumption, check whether non-application processes might be behind it. They'll be listed in the Memory tab of Activity Monitor, but won't appear in that dialog.

I was being barraged by this dialog with neither the listed applications nor free disk space explaining the supposed problem. Turns out I had a few UNIX processes using unusually large amounts of memory. The amounts they were using still don't explain the dialog's claim, and memory pressure was still in the green, but as soon as I quit them (didn't even have to force-quit) the dialogs stopped and haven't recurred since.

WARNING: It's a good idea to do a little online research into what any unknown processes are and do before forcibly quitting them, as some may have significant bad effects on the system if killed. Depending on the process, it may be preferable to restart the system either in lieu of, or immediately after, force-quitting it.

If you're seeing this message but the listed applications don't seem to explain the supposed excessive memory consumption, check whether non-application processes might be behind it. They'll be listed in the Memory tab of Activity Monitor, but won't appear in that dialog.

I was being barraged by this dialog with neither the listed applications nor free disk space seeming to jibe with the supposed problem. Turns out I had some runaway UNIX processes. Quit them (didn't even have to force quit) and the barrage stopped immediately.

If you're seeing this message but the listed applications don't seem to explain the supposed excessive memory consumption, check whether non-application processes might be behind it. They'll be listed in the Memory tab of Activity Monitor, but won't appear in that dialog.

I was being barraged by this dialog with neither the listed applications nor free disk space explaining the supposed problem. Turns out I had some a few UNIX processes using unusually large amounts of memory. Quit them (didn't even have to force quit) and the barrage stopped immediately. It's a good idea to do a little online research into what any such processes are and do before force quitting them, as some may have significant bad effects on the system if killed. Depending on the process, it may be preferable to restart the system.