Re: [kvm-unit-tests PATCH 0/2] arm/arm64: Add IPI/vtimer latency

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On Wed, Apr 01, 2020 at 06:08:10PM +0800, Jingyi Wang wrote:
> With the development of arm gic architecture, we think it will be useful
> to add some simple performance test in kut to measure the cost of
> interrupts. X86 arch has implemented similar test.
> 
> Jingyi Wang (2):
>   arm/arm64: gic: Add IPI latency test
>   arm/arm64: Add vtimer latency test
> 
>  arm/gic.c   | 27 +++++++++++++++++++++++++++
>  arm/timer.c | 11 +++++++++++
>  2 files changed, 38 insertions(+)
> 
> -- 
> 2.19.1
> 
>

Hi Jingyi,

We already have an IPI latency test in arm/micro-bench.c I'd prefer that
one be used, if possible, rather than conflating the gic functional tests
with latency tests. Can you take a look at it and see if it satisfies
your needs, extending it if necessary?

Thanks,
drew




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