Comment 60 for bug 1480877

Revision history for this message
Andrea Bernabei (faenil) wrote :

@awe: great progress! well done! :)

I took a few videos to demonstrate the problem on my device
KRILLIN, RC-PROPOSED, R163
network-manager 0.9.10.0-4ubuntu15.1.8
wpa-supplicant

It was really easy to shoot videos at the right time because the problem happens exactly every 2 mins (which is the scanning interval Tony reported above)

DISCLAIMER: The problem can actually get worse than what the first video shows (if I wait one or two days more)

NO SERVICES DISABLED
https://www.youtube.com/watch?v=UvGoX4Nh9oo

SLPGWD DISABLED
https://www.youtube.com/watch?v=-Vhd0eS5Af4

SLPGWD POSCLIENTD DISABLED
https://www.youtube.com/watch?v=bTPiT2-LP2Y

SLPGWD POSCLIENTD LOCATION-SERVICE DISABLED
https://www.youtube.com/watch?v=V4SXNfJ9SqM

Then I looked for more location/here related services in the system, and I disabled them as well

SLPGWD POSCLIENTD LOCATION-SERVICE INDICATOR-LOCATION DISABLED
https://www.youtube.com/watch?v=2QuED_1UzEw

SLPGWD POSCLIENTD LOCATION-SERVICE INDICATOR-LOCATION LOCATION-SERVICE-TRUST-STORED DISABLED
https://www.youtube.com/watch?v=9QgssDKDu1Q

As can be seen from the videos, disabling SLPGWD is the change that made most of the difference, disabling POSCLIENTD also improved the situation a bit.
Disabling the rest of the services brought very little to no advantage, as far as I can tell.

However, as Tony was correctly saying, even after disabling everything, there's still a 1sec freeze every time a WiFi scan happens...and that can be quite annoying, especially when the scanning interval is much shorter than 2 mins.