4.0.3 has huge memory and CPU footprint in High Sierra

General discussions about Little Snitch
gspot
Posts: 3
Joined: Sun Feb 19, 2012 8:14 pm

4.0.3 has huge memory and CPU footprint in High Sierra

Postby gspot » Tue Oct 10, 2017 5:34 pm

Anyone else notice this?

energia
Posts: 2
Joined: Tue Oct 10, 2017 6:01 pm

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby energia » Tue Oct 10, 2017 6:02 pm

Show some screenshots of the footprint?

philby
Posts: 2
Joined: Wed Oct 15, 2008 10:56 pm

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby philby » Thu Oct 12, 2017 9:34 am

Before rebooting yesterday evening Little Snitch Netzwerkmonitor used ~1.5GB memory on my system, after 12 hours (8 of which with no user activity) it again up to almost 1 GB.
Image

Numanmania
Posts: 1
Joined: Mon Oct 16, 2017 7:49 am

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby Numanmania » Mon Oct 16, 2017 7:51 am

Same here on High Sierra 10.13 and LS 4.03 above 100% CPU all time.

christian
Objective Development
Objective Development
Posts: 1369
Joined: Thu Nov 09, 2006 11:46 am

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby christian » Mon Oct 16, 2017 2:26 pm

The memory consumption of Network Monitor is primarily due to the map. It looks bad, but is not that bad because most of the memory is a cache for rendered graphics. This cache is freed when an other app needs more memory. As long as there is no pressure, the map keeps the cache.

The CPU load is an other issue. We are aware of it and are working on a fix. This high load occurs when you run applications with a particular connection pattern, e.g. wallets for digital currencies or similar.

imyself
Posts: 2
Joined: Fri Nov 10, 2017 9:45 pm

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby imyself » Mon Nov 20, 2017 10:07 pm

the same problem here. especially cpu. snitch 4.0.3 eats all my battery life on my new mbp on High sierra, for example when I was streaming a video.

christian
Objective Development
Objective Development
Posts: 1369
Joined: Thu Nov 09, 2006 11:46 am

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby christian » Tue Nov 21, 2017 12:39 pm

Can you please try 4.0.4 nightly? We have improved performance for certain network traffic patterns in this version.

gspot
Posts: 3
Joined: Sun Feb 19, 2012 8:14 pm

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby gspot » Tue Nov 21, 2017 4:20 pm

CPU usage is fine in the nightly but memory usage is still way too high. Higher then kernel_task for me. 2.82GB vs 2.25 for kernel_task

christian
Objective Development
Objective Development
Posts: 1369
Joined: Thu Nov 09, 2006 11:46 am

Re: 4.0.3 has huge memory and CPU footprint in High Sierra

Postby christian » Tue Nov 21, 2017 4:35 pm

I suppose this is for Network Monitor. When you close the map and force-quit Network Monitor, it will re-open automatically with the map closed. How much is the memory usage then?

I'm asking because the map is a standard user interface component which is not under our control. It caches rendered bitmap images as long as there is enough free memory. If you have lots of RAM and no other app needs it, that may be a huge amount. It will be freed at the moment an other app needs memory, so it should be harmless.


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