Having an odd problem – one of my app suites has to read/write gzip-compressed files that are used on both Windows and Linux, and I am finding that the files I generate using zlib on Linux are 2-3 times larger than those I generate using GZipStream on Windows. They read perfectly on either platform, so I know that the compression is correct regardless of which platform created the file. The thing is, the files are transferred across the network at various times, and obviously file size is a concern.
My question is:
- Has anyone else encountered this
- Is there some documented difference between the two? I do know that
GZipStreamdoes not provide a way to specify the compression level like you can with zlib, but I am using maximum compression on the zlib side. Shouldn’t I see relatively the same file size, assuming that GZipStream is written to use maximum compression as well?
And the answer is …. the Linux version was never compressing the data to begin with. Took a lot of debugging to find the bug that caused it, but after correcting it, the sizes are now comparable on both platforms.