I just tried splitting the Anna's Archive 250GB WorldCat JSON file out into separate files so I could random-access it. My app crashed at 7m files due to some corruption in the source file.
I can tell you, it took a real, real long time to delete seven million files on NTFS. It was not happy.
I can tell you, it took a real, real long time to delete seven million files on NTFS. It was not happy.