A question about the calculation of the number of cpu

[beita1]

Hello, I was reading tinypool's source code and had two questions in the src/physicalCpuCount.ts. I don't understand the logic for counting cpu number , could you help me with it?

questions

• question 1: Why not just use os.cpus().length to get cpu count instead of doing special logic for different plaforms？
• question 2: Why does the Linux platform get the physical cpu cores by the command cat /proc/cpuinfo | grep "physical id" | sort | wc -l instead of the logical cpu's number by the command cat /proc/cpuinfo| grep "processor"| wc -l?

[Aslemammad]

Hey, Thank you for asking the question! Sure! for the first question, the answer is in the second one! it's because we want to spawn workers based on physical cores, not logical ones!
And why physical cores? Read this