Heh - I only did a scan read, but the 99.9th percentile would be much more useful than the average in the table. I agree on the last part - but I think it's im

Heh - I only did a scan read, but the 99.9th percentile would be much more useful than the average in the table. I agree on the last part - but I think it's important to measure the effects during outage too. One we often see is fsync operations taking minutes with write caching disabled - this is more common than just during outages however!