Right now, activity monitor shows that a process called "recentsd" is using 1.82GB of memory (1.08GB compressed, 752MB private) on my MacBook Pro running macOS 10.13.1.

Some googling has lead to the conclusion that the process is somewhat related to the Mail.app and GMail (which I am also using):

The links also give some ideas for a solution (deleting the "com.apple.corerecents.recentsd" folder and reconnecting the gmail account).

However, despite doing that, memory usage of recentsd is still very high (after some time - so it seems to be a continuous growth).

Any idea what else I could try?

  • Do you have any memory pressure? Allocating virtual memory and even physical memory means little if the system isn't under pressure.apple.stackexchange.com/questions/202744 and apple.stackexchange.com/questions/153901
    – bmike
    Nov 21, 2017 at 22:10
  • @bmike: I noticed the issue first when running a VM which ran very slow and then I noticed that memory pressure was yellow and recentsd (and two other „helper processes“ - one of them was contacts-donation-agent) took more than 8GB together. Killing them, rebooting a couple of times and re-adding the GMail account frees the memory and has solved the issue for now for the others. Just recentsd seems to behave „strange“ still (takes less than 5MB after boot, but then grows).
    – Matthias
    Nov 21, 2017 at 22:16


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