Re: 'make check-functional' uses lots of disk space in build tree

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

On 25/10/24 10:57, Daniel P. Berrangé wrote:
> On Fri, Oct 25, 2024 at 02:50:50PM +0100, Peter Maydell wrote:
>> I notice that with the recent migration to check-functional we
>> seem to be using a lot of disk space in the build tree: for
>> one of my build trees
>>   du -h build/arm-clang/tests/functional/
>> returns a total of 4.5GB used, for instance, most of which seems
>> to be guest binary files.
>>
>> Shouldn't something be cleaning these up after a test run?
> 
> The big problem seems to be tests/functional/test_aarch64_sbsaref.py
> which is creating a pair of 256 MB firmware files on every test
> and not deleting them.
> 
> The tests/functional/test_arm_raspi2.py is also uncompressing some
> archives and not deleting them.

Some files could be added back to the cache (with the proper hash)
so we don't need to re-extract or re-create them everytime.

> Perhaps we need to define a standard "scratch dir" in the framework
> that files can be put into, and then have the framework force delete
> them at the end.
> 
> With regards,
> Daniel