nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

ketil — Mon, 19 Mar 2018 11:44:17 GMT

OK. Would it be possible to ask your IT department to make a global exception for nRFConnect?

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

gnf — Fri, 16 Mar 2018 09:37:51 GMT

Oh, I wish I could. I am locked out of doing just that here at work, sorry.

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

ketil — Tue, 13 Mar 2018 14:23:55 GMT

Thank you for the detailed screenshots. We can't see any immediate solutions but we have a suspicion that it might be related to McAfee Antivirus. Could you try to temporarily disable McAfee or whitelist nRF Connect?

Ketil

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

gnf — Tue, 13 Mar 2018 12:02:26 GMT

Ok, right now I have this situation again that svchost is using almost one whole CPU core. As you can see the average CPU load is around 23% but there is no trace of this in the Services tab:

The same goes for Process Explorer. 23 % load on the svchost.exe but still no trace on what's happening "under the hood":

Edit: I just closed nRF Connect. Now look at the CPU load of svchost:

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

ketil — Tue, 13 Mar 2018 10:03:09 GMT

Hi,

Can you try Windows Task Manager -> Performance (tab) -> Resource monitor (button) -> Services (button)

This will give you a list of running processes and you should be able to sort and find any services that are running hot.

Ketil

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

gnf — Tue, 13 Mar 2018 09:38:48 GMT

Ok, I'll try to answer:

1. Bluetooth Low Energy, official, v2.1.0

2. Connecting and disconnecting, bonding, reading characteristics. Connecting to a PCA10040 board with software compiled from SDK 14.2

3. No, you can't do that. It will only show a list of ~100 different processes. It is not possible to see which of them is active at the time.

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

ketil — Tue, 13 Mar 2018 08:47:23 GMT

Hi again,

Just talked to the nRF Connect for Desktop team and we have not seen this issue before. We would like to try to reproduce on our end and would appreciate it if you could elaborate on the following:

Which app are you using within nRF Connect?
What are you using the app for?
Which service is consuming resources?

You can find details about services by right-clicking on svchost.exe:

Ketil

RE: nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

ketil — Tue, 13 Mar 2018 08:04:16 GMT

Hi,

I'm looking into this and will get back to you.

Ketil