pool: Reuse unknownFields memory #143
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Btw. it's not clear to me why |
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First of all: Thanks for the great project! I really like the approach and have seen great performance improvements with vtprotobuf.
While analysing the memory usage of my program using vtprotobuf, I noticed that massive amounts of memory are used for the allocation of
unknownFields. This is a big part of my data, as I am parsing some existing protobuf (open streetmap's PBF files) where I don't care about a lot of the fields, so I have excluded them from my .proto files to increase performance. Reusing the memory of theunknownFieldsreduced the amount of allocations by 34% and the amount of used memory by 41% in my case.I'm pretty sure this PR is in no shape to be merged, because I still understand too little about the code to write it better, but thought a working PR would demonstrate my idea better than an issue.