Cache restoration is orders of magnitude slower on Windows compared to Linux. #752
Description
We are using this action to cache Conan packages.
Our current cached is ~300 MB on both Linux (ubuntu-20.04) and Windows (windows-2019).
Sadly, where the cache step routinely takes ~10 seconds on Linux, it oftentimes takes ~5 minutes on Windows.
This makes iterations frustrating, as the rest of the workflow takes about 2 minutes to complete, we get a global x3 time penalty because of this.
As far as I can tell, the archive retrieval time is comparable, it really is the cache un-archiving which seems to take very long on Windows.
Our latest run below for illustration purposes.
Linux:
Windows:
