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by aidenn0 3695 days ago
I'm using a somewhat older version of ZFS, but I tried having an SLOG (a dedicated ZIL disk) and it went essentially unused, so instead I moved the disk over to a second L2ARC, which helped a lot, as it doubled the throughput.

Further research showed that the ZIL is only needed for synchronous writes, which my workload didn't have any of.