No improvement over System.IO.Compression.ZipArchive

[A9G-Data-Droid]

I am rapidly dealing with zip files in the range of 250MB. I am seeing no improvement over my old System.IO.Compression.ZipArchive method. After running a few times I am reliably seeing the same results, a bit slower.

System.IO.Compression.ZipArchive    Runtime: 00:00:01.6661219
PowerPlayZipper                     Runtime: 00:00:01.6874230

[kekyo]

Thanks for trying it out!

PowerPlayZipper speeds up the process by decompressing large numbers of files in parallel. Are you saying that the zip file you tried contains a single 250MB file?

[A9G-Data-Droid]

That makes sense. Yeah, maybe this archive is not a good candidate for parallelization.

[kekyo]

In fact, it would be nice to be able to achieve parallel decompression of a single file. I am not familiar with compression algorithms themselves, so I am not clear, but to achieve parallel processing with a compression algorithm, I think we need to design a suitable algorithm from the beginning.

Perhaps "Deflate" is an old algorithm, so even if we add some thought to our implementation, we can't expect it to be fast.
And PowerPlayZipper depends on System.IO.Compression. So it will be rate-limiting in a single file.