Re: [kvm-unit-tests PATCH v3 00/10] arm/arm64: Add IPI/LPI/vtimer latency test

[Andrew Jones <drjones@redhat.com>]

On Fri, Jul 31, 2020 at 03:42:34PM +0800, Jingyi Wang wrote:
> With the development of arm gic architecture, we think it will be useful
> to add some performance test in kut to measure the cost of interrupts.
> In this series, we add GICv4.1 support for ipi latency test and
> implement LPI/vtimer latency test.
> 
> This series of patches has been tested on GICv4.1 supported hardware.
> 
> Note:
> Based on patch "arm/arm64: timer: Extract irqs at setup time",
> https://www.spinics.net/lists/kvm-arm/msg41425.html
> 
> * From v2:
>   - Code and commit message cleanup
>   - Clear nr_ipi_received before ipi_exec() thanks for Tao Zeng's review
>   - rebase the patch "Add vtimer latency test" on Andrew's patch
>   - Add test->post() to get actual PPI latency
> 
> * From v1:
>   - Fix spelling mistake
>   - Use the existing interface to inject hw sgi to simply the logic
>   - Add two separate patches to limit the running times and time cost
>     of each individual micro-bench test
> 
> Jingyi Wang (10):
>   arm64: microbench: get correct ipi received num
>   arm64: microbench: Generalize ipi test names
>   arm64: microbench: gic: Add ipi latency test for gicv4.1 support kvm
>   arm64: its: Handle its command queue wrapping
>   arm64: microbench: its: Add LPI latency test
>   arm64: microbench: Allow each test to specify its running times
>   arm64: microbench: Add time limit for each individual test
>   arm64: microbench: Add vtimer latency test
>   arm64: microbench: Add test->post() to further process test results
>   arm64: microbench: Add timer_post() to get actual PPI latency
> 
>  arm/micro-bench.c          | 256 ++++++++++++++++++++++++++++++-------
>  lib/arm/asm/gic-v3.h       |   3 +
>  lib/arm/asm/gic.h          |   1 +
>  lib/arm64/gic-v3-its-cmd.c |   3 +-
>  4 files changed, 219 insertions(+), 44 deletions(-)
> 
> -- 
> 2.19.1
> 
>

Pushed

(to the new repo at https://gitlab.com/kvm-unit-tests/kvm-unit-tests.git)

Thanks,
drew