Docs: Caching Packages on D:\ doesn't provide performance improvement

[danyeaw]

In the caching packages section of the README it says the following:

GitHub hosted Windows runners are currently faster during cache decompression when configuring the package directories on the D: drive as shown above. Make sure to use the enableCrossOsArchive cache config option as well.

I did some tests on this that can be found here: https://github.com/danyeaw/setup-miniconda-performance/blob/main/.github/workflows/caching-performance.yml

Unfortunately, caching from the D:\ is consistently about 10% slower:

C: Drive: 99.4s
D: Drive: 108s

I can open a PR if we agree to remove this.

[jezdez]

That's surprising, I wonder if that has changed in the most recent iterations of GHA runners?

[danyeaw]

Could be, although benchmarking things is hard - I saw some inconsistency even with this C: to D: cache change, usually it is slower, but every once in a while it was slightly faster. I guess that is why conda-benchmarks and libraries like asv exist.