Re: [RFC PATCH] arm64: defconfig: Disable fine-grained task level IRQ time accounting

From: peterz
Date: Wed Aug 05 2020 - 13:37:16 EST

On Wed, Aug 05, 2020 at 02:56:49PM +0100, Valentin Schneider wrote:

> I've been tempted to say the test case is a bit bogus, but am not familiar
> enough with the RT throttling details to stand that ground. That said, from
> both looking at the execution and the stress-ng source code, it seems to
> unconditionally spawn 32 FIFO-50 tasks (there's even an option to make
> these FIFO-99!!!), which is quite a crowd on monoCPU systems.

Oh, so it's a case of: we do stupid without tuning and the system falls
over. I can live with that.