Own Sphinx-Extension for GarbageCollector Stats

[danwos]

Sphinx-Performance should also provide a Sphinx extension and maybe builder, so that we can get insights of the Sphinx-Build.

The first feature would be to collect the stats of the Garbage collector.
This code can be used:

import gc
stats = gc.get_stats()

print('** Python Garbage Collector stats **')
for index, col in enumerate(stats):
    for key, value in col.items():
        print(f'{index}.{key}: {value}')
    print('')

The output would like like this at the end of the Sphinx build:

** Python Garbage Collector stats **
0.collections: 492
0.collected: 2738
0.uncollectable: 0

1.collections: 44
1.collected: 769
1.uncollectable: 0

2.collections: 4
2.collected: 32384
2.uncollectable: 0