[Ovmsdev] High hologram usage

[Michael Balzer]

Am 10.04.25 um 22:44 schrieb Craig Leres:
> On 4/10/25 13:30, Michael Balzer via OvmsDev wrote:
>> Am 10.04.25 um 19:16 schrieb Craig Leres:
>>> On 4/9/25 10:54, Michael Balzer via OvmsDev wrote:
>>>> I cannot see how the modem in your bench module "dev" could cause 
>>>> >8 MB network traffic when the module has Wifi all the time, except 
>>>> by many reconnects + Hologram counting these as traffic (which I 
>>>> think they shouldn't and don't do), or by the module not using Wifi 
>>>> due to a test or very poor signal level.
>>>>
>>>> The only modem change coming to my mind is the GSM signal quality 
>>>> extension by Jaime, which initially had switched good & bad signal 
>>>> levels. But that wouldn't have triggered a modem reconnect, rather 
>>>> reboots, and that wouldn't have gone unnoticed by you.
>>>>
>>>> You can check the cellular reconnect count from "cellular status 
>>>> debug". Of course that only counts reconnects that need an IP 
>>>> renegotiation, not transparent transitions to other cell towers.
>>>>
>>>> Looking forward to your findings.
>>>
>>> The version that causes problems for me is 3.3.004-324-g367f6b95
>>
>> That would be commit 367f6b950f62adef04c8c877f5e29889e6e22c64, which 
>> only included minor changes to the e-Up module, so that can be ruled 
>> out as the causing commit.
>>
>> https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/ 
>> commit/367f6b950f62adef04c8c877f5e29889e6e22c64
>
> My testing found:
>
>     3.3.004-323-gbc1f75c9    24Nov24 good
>     3.3.004-324-g367f6b95    25Nov24 BAD
>
> When I run:
>
>     git diff bc1f75c9 367f6b95
>
> I see a *lot* more changes than in the url you show above.
>
> I guess there are somehow multiple commits hidden in the range between 
> 323 and 324?

bc1f75c9 is not a master branch commit… it's a merge of the master state 
470979369be56fe18eae0df90f1619afdd27e850 into Dimitrie's SmartEQ 
development branch.

I'd recommend strictly sticking to the master branch. git bisect 
normally does that by itself, so I guess you're doing a manual search?

>
>>> All modules are using a lot more cellular data but one in particular 
>>> stands out. It's the one with the lowest wifi dBm but it's not 
>>> *that* bad, but it makes me wonder if there is some kind of wifi 
>>> power saving that's making wifi frequently unavailable causing 
>>> cellular data usage (combined with something in this version that is 
>>> 10X as chatty -- I suspect fixing this will get my usage back down).
>>
>> Did you check your network wifi SQ & reconnect settings?
>
> I don't know what those are (and it seems to be somewhat of a POLA 
> violation that the default config would use 10X the cellular data 
> (especially for modules that are on wifi).

The defaults do not cause any issues, my suspicion is you maybe 
accidentally changed them during some test.

The defaults are shown here: 
https://docs.openvehicles.com/en/latest/userguide/wifi.html#wifi-signal-quality

Regards,
Michael

>
>> Not that they would make any difference from that commit, but maybe 
>> it's not the commit but some random Wifi fluctuation causing an 
>> occasional switch to cellular.
>>
>> That should be clearly visible in the logs though.
>
> I guess I have more commit hashes to test.
>
>         Craig
>

-- 
Michael Balzer * Am Rahmen 5 * D-58313 Herdecke
Fon 02330 9104094 * Handy 0176 20698926

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