Sending the https REST API using the curl command causes an unusual increase in CPU load

Answered

Daiki Kato

March 10, 2022 10:44

Hi

Sending the https REST API to Nx Witness Server using the curl command causes an unusually high CPU load. A single transmission increases the CPU load by about 18%. When run 6 times in a row, the CPU load is close to 100%.
The result is the same whether you use curl that comes pre-installed in Windows 10 or send it from Linux.

When I sent the same REST API from a web browser (chrome), the CPU load did not increase.
The REST API is sent from a different PC than the Nx Server, whether using the curl command or a web browser.
curl uses the following command. The result is the same whether you use basic authentication or digest authentication.

curl -k --basic -u admin:<PASSWORD> "https://<SERVER_ADDRESS>:<PORT>/api/createEvent?caption=test"
curl -k --digest -u admin:<PASSWORD> "https://<SERVER_ADDRESS>:<PORT>/api/createEvent?caption=test"

Is there a way to avoid an increase in CPU load when sending REST APIs over https using curl?

Device  : Jetson nano
Version : 4.2.0.32840

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• 

  Norman

  • Network Optix team

  March 10, 2022 13:42

  Hi Daiki Kato,

  Please check THIS reply from my colleague regarding a similar issue.

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• 

  Daiki Kato

  March 11, 2022 00:05

  Hi Norman,
  
  Thank you for your help. It was successfully resolved.

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