Re: [Problem] Cache line starvation

From: Sebastian Andrzej Siewior
Date: Fri Sep 28 2018 - 15:26:40 EST


On 2018-09-27 16:47:47 [+0200], Thomas Gleixner wrote:
> I wonder if it's just the store on the stack which makes it work. I've seen
> that when instrumenting x86. When the careful instrumentation just stayed
> in registers it failed. Once it was too much and stack got involved it
> vanished away.

Added two load/stores into wait_task_inactive() and it still triggers
(on the core2duo).

> Thanks,
>
> tglx

Sebastian