Introduce new, better performing IoRingLogDevice2. #155
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gabrielbornstein
approved these changes
Jul 25, 2024
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Instead of using a fixed-size set of flush ops, this impl just flushes the next chunk of data directly and overwrites a single control block on media.
In micro-benchmarks, it performs over 2x as well as the old IoRingLogDevice, while using less memory and being much simpler code-wise. Recovery is also simpler and faster since the control block holds a ring buffer of commit pos values (which are by definition aligned to slot record boundaries).