Qemu consumes high CPU power

[milisarge]

In my dual core machine running qemu consumes %75-%90 CPU, is it normal? How can we decrease it?

[elizatlawy]

I have the same problem on Macbook Pro 2020 intel i7 CPU.

[tyfkda]

I found that @shunshu solved the problem (but not yet merged):
shunshu@40db4f0

It looks wfi instruction (Wait for Interrupt) makes RISCV a sleep.

[elizatlawy]

I found that @shunshu solved the problem (but not yet merged):
shunshu@40db4f0

It looks wfi instruction (Wait for Interrupt) makes RISCV a sleep.

Thank you, it seems to work.

[meighti]

I created pull request #174 using @shunshu solution.

[hainingning]

The situation of high cpu usage still exists. When I run "make qemu", the cpu usage immediately goes up to 80% or higher, and the temperature also rises to 80 degrees Celsius rapidly.

[arnavaghav]

Can confirm issue still persists on main branch and the proc.c patch resolves it. Thanks.