On Wed, Jan 05, 2022 at 01:59:21PM -0800, Trent Nelson wrote:
>
> I did some research on this a few years back. I was curious what sort
> of "max reference counts" were encountered in the wild, in long-running
> real life programs. For the same reason: I wanted to get some insight
> into how many unused bits could possibly be repurposed for future
> shenanigans (I had PyParallel* in the mind at the time).
>
> I added some logic to capture* the max reference counts of the None,
> True, and Zero objects (in a trace callback), then ran a really long
> simulation program of a client's (it ran for about 5-6 hours). The
> results were as follows:
>
> MaxNoneRefCount 9,364,132
> MaxTrueRefCount 204,215
> MaxZeroRefCount 36,784
Just double-checked my results, there were a handful of runs with higher
counts:
MaxNoneRefCount 59,834,444
MaxTrueRefCount 1,072,467
MaxZeroRefCount 3,460,921
Regards,
Trent.
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