ring buffer: store logs as proto instead of fb #297
Merged
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For logs with many fields, the fact that fb is padded and doesn't use varint encoding leads to substantial overhead. This removes that overhead. As part of this change I went a bit over the top and also implemented a custom encoder for the Log proto which allows for zero copy into the ring buffer. This is better than the previous fb implementation which encoded and then did a memcpy into the buffer.