Big increased CPU load when going from HLS5 to HLS7

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By AndreasAtPowel , 27 January, 2022
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Gurux.DLMS

Hi
You have earlier had contact with Christer during development of suite1 for Sanxing meters. We have now deployed some of what we have done and see a big increase in CPU load on the machines. Could there be any issues in Gurux regarding this or do you think this is as expected?

I attach some screenshots of CPU load when running in suite0 and suite1(HLS7)

Kurumi

4 years 4 months ago

Hi,

Sorry to say, but this is expected. HLS7 is more complicated than HLS5. I have read a lot for ECDSA and I have a few ideas that might help to decrease CPU usage. I'll send more information after I have received answers to my questions and verified that those ideas can be used for this.

BR,
Mikko

Kurumi

4 years 4 months ago

Hi,

I'll check this and get back to you later today.

BR,
Mikko

AndreasAtPowel

4 years 4 months ago

This is probably something you already know, but in case it can help. I ran a collection of values through a profiler and the "bad boy" seem to be GXDLM.ReceiverReady

Image

Kurumi

4 years 4 months ago

Hi,

This is a different scenario than I expected. Can you get the hex trace from the sent and received bytes and send it to me by email?

BR,
Mikko