Re: [Qemu-devel] TCG baremetal tests repo

["Alex Bennée" <alex.bennee@linaro.org>]

Alexander Spyridakis <a.spyridakis@virtualopensystems.com> writes:

> Hello all,
>
> You can find the latest tcg atomic test payload in the following repo:
>> git clone
>https://git.virtualopensystems.com/dev/tcg_baremetal_tests.git

Both git and Chrome complain about your SSL certificates btw.

>
> You also need an arm baremetal cross-compiler like arm-none-gnueabi- (arm)
> and the usual aarch64-linux-gnu- (arm64). Due to a PSCI bug in the current
> multithreading tcg repo, the atomic test was modified to work also on the
> vexpress machine model.
>
> To run it:
>> make vexpress (or virt/virt64 for other targets)
>> ../mttcg/arm-softmmu/qemu-system-arm -nographic -M vexpress-a15 -kernel
> build-vexpress/image-vexpress.axf -smp 4
>
> On my machine it takes around 30 seconds for one run of the test and the
> results vary from as low as 5 to 30 errors per vCPU per 10 million
> iterations (no errors with KVM). It is also very interesting to note, that
> the current test finishes faster on upstream qemu than multithreaded
> qemu.

Interesting. Thanks for putting the tests online.

>
> Best regards.

-- 
Alex Bennée