From my colleague, a perf improvement to Async_file_logger, so it uses somewhat less memory per pending-for-logging message. I then massage that code somewhat. #49
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…er, so it uses somewhat less memory per pending-for-logging message. I will then massage this code somewhat.
…har[]>(size_t) would zero-initialize the chars, whereas for us that is a waste. Using the technique from Basic_blob (there is also a @todo added to make a util::Tight_blob later, so it can be reused by itself and also Basic_blob would be written in terms of it).
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