Re: [patch 05/24] perfmon: X86 generic code (x86)

[Andi Kleen]

> What about a thread doing this and another one in the middle of read the buffer?

I assume that uses locks. Locking between threads is easy.

> 
> Or what about a thread trying to reset the buffer while you're processing an PMU
> interrupt on another CPU. I know each buffer is per-CPU, but that does not
> prevent two threads for trying to operate on it at the same time from
> different CPUs.

That happens per CPU.

-Andi

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