On 5/20/20 1:49 PM, Jan Hubicka wrote:
On related note, I remember us discussing that std compression has problem with bigger headers then zlib. Since we stream our header that says if section is compressed, I wonder if we could teach stream-out phase to skip compression if it is not benefical, so the size info is not duplicated?
Hello. I've collected statistics for that on tramp3d (with -O2 -flto) and I see: sections: 3041, not beneficial: 16 before: 13804315, after: 4753009 can save: -128 (-0.00%) So there are only 16 sections that are bigger when compressed with ZSTD (including zstd header size). The benefit is negligible. Martin
