I don't understand where you got `- 3ms p50 - 6ms P99 read-only! latency ` ? https://cloud.google.com/bigtable/sla https://cloud.google.com/bigtable/sla doesn'

I don't understand where you got `- 3ms p50 - 6ms P99 read-only! latency ` ? https://cloud.google.com/bigtable/sla https://cloud.google.com/bigtable/sla doesn't refer to any latency SLA.