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High cpu usage in 433gpio thread after rpi-update
(02-27-2015, 09:17 PM)Ikarisan Wrote: I was wondering if >20% CPU load are normal or not.
I had about 0.3% of CPU utilization with V5 - and similar utilization with V6. For me it looks uggly to have >20% CPU load.

Regarding the high CPU usage issue with V5 and the current kernel - I just upgraded to V6 and the current kernel 3.18.8+ - and the cpu usage is 0.3% again and pilight works like a charm now again.

Unfortunately I detected some switches I used before with V5 are no longer supported in V6 (ElroHome switches) Confused
The protocols were renamed, check the wiki for the new names
Thank you very much for pointing this out. I now tried the elro_400 and elro_800 protocols and still fail. Will investigate on this in more detail the next couple of days and create a new thread for this if needed.
There is also an elro_300 protocol, and the 800 one is called elro_800_switch
Check the back of the remote for the type number
I created a new thread for the elro issue because it's OT in this thread.
I have also CPU usage 25-30% on an Raspery Pi 2.
- latest Kernel 3.18.11-v7+
- pilight 6.0 (latest)

I use only one entry to get the temp from alecto_ws1700 (Pearl Outdoor)

What does curlymo means with: "If you aren't using a filter yes."

This is my config:

        "devices": {
                "OutsideTemp1": {
                        "protocol": [ "alecto_ws1700" ],
                        "id": [{
                                "id": 1490
                        "temperature": 17.0,
                        "humidity": 18.0,
                        "battery": 1
        "rules": {},
        "gui": {
                "OutsideTemp1": {
                        "name": "Weather Station 1",
                        "group": [ "Outside" ],
                        "media": [ "all" ]
        "settings": {
                "log-level": 4,
                "pid-file": "/var/run/pilight.pid",
                "log-file": "/var/log/pilight.log",
                "send-repeats": 1,
                "receive-repeats": 1,
                "webserver-enable": 1,
                "webserver-root": "/usr/local/share/pilight/",
                "webserver-port": 5001,
                "webserver-cache": 0,
                "firmware-update": 0
        "hardware": {
                "433gpio": {
                        "sender": 0,
                        "receiver": 1
        "registry": {
                "pilight": {
                        "firmware": {
                                "version": 32768,
                                "lpf": 215170,
                                "hpf": 216510
                        "version": {
                                "current": "6.0"
Welcome to the forums, thomas.cristo Smile
First of all, please format your post using code tags to make it more readable and read the rules you got in the PM.

What curlymo meant, is the Low-Pass Filter that has been developed here for filtering out noise that the receiver picks up, reducing the CPU load by the pilight-daemon
Sorry, pilino1234, I don't understand what you mean. Can I something configure, to reduce the CPU load? Or I have to live with it?
Can I disable the filter to reduce the CPU load?
The filter is an additional piece of hardware, an ATTiny chip that is programmed to remove weak signals. It is wired between the receiver and the Raspberry Pi GPIO pin. You can buy a kit from the pilight shop or build one yourself.

With the filter it reduces the CPU load, because the filter is external from the RPi Smile
@pilino1234I took a look into the filter thread and is possible that could to be the problem. I was wondering, because framp wrote, that he had the same problem. But he updates the kernel to 3.18.8+ and the usage is 0.3%. @framp Or you use the hardware filter to?

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