slow API when multiple requests

[joggs]

Describe the bug

The api is very slow if you send multiple requests.
If you press on and off 10 times each second for a light group with 6 lights, the response time stars to increase alot after just 4 clicks and all of a sudden you have a response time of many many seconds.
The same ofcorse happens if you turn off multiple lights from an external system such as home assistant.
So when I turn off indoor lightng at night, you can stand and watch all lights turning off with seconds in between.
I run deconz on a multithreaded ryzen server where the cpu is almost idle while this happens.

Steps to reproduce the behavior

If the problem is reproducable, list the steps here:

1. Go to the old phoscon app
2. Click on and off 10 times on a light group with at least 6 lights
3. look at the lights response time increasing drastically
   4

If the problem can't be reproduced and is sporadic, please provide some details
on how often and when the issue happens.

Expected behavior

a quick response when sending multiple requests to the api

Screenshots

Environment

• Host system: PC
• Running method: Windows
• Firmware version: 26580700
• deCONZ version: 2.05.79
• Device: ConBee II
• Do you use an USB extension cable: yes

deCONZ Logs

Additional context

[wvuyk]

Sending commands to groups is slower then adressing a light. I think this is caused by the group call being a multicast call.
When I use a group call in the REST API with my plugin, I let a new call wait ca. 0,8 seconds. When I send a direct call for a light, a new call has to wait 0,1 second. I suspect Phoscon is doing a similar delay with sending the commands.
Sending a number of calls, like you are doing by pressing on and off repeatedly is causing a queue to build up, If you manage to send 10 commands in a second, the last command will be send out 8 seconds after you pressed it in my sample.

I think this is caused by the limits of group command handling in Zigbee, and probably not a bug in the REST API?

[stale]

As there hasn't been any response in 21 days, this issue has been automatically marked as stale. At OP: Please either close this issue or keep it active It will be closed in 7 days if no further activity occurs.

[stale]

As there hasn't been any response in 28 days, this issue will be closed. @ OP: If this issue is solved post what fixed it for you. If it isn't solved, request to get this opened again.