mirror of https://github.com/ekimekim/wubloader
thrimshim: Fix performance issue with getting template png
Bytes returned from the database are a "memoryview" and not a bytes object. These mostly behave the same, but one difference is that Flask recognizes a bytes object as something it can send as-is, whereas a memoryview ends up using its generic "iterable" processing. This results in sending every individual byte of the result as a single part of a HTTP chunked encoding response, adding 5 bytes and a syscall to every byte returned. The solution is to explicitly convert it to bytes before returning.pull/456/merge
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