[Rimpinths]

I thought what lrm242 said and what I said were pretty much the same thing. But there is no standard definition of 'latency', so it's hard to say what "they mean" unless they publish a definition on their website. But I know of at least three major exchanges (one of which I work for) that consider the starting and endpoints for latency measurements to be outside the firewall. As for what Turquoise means, I'm not sure but would love to see their definition to know if their numbers are comparable. Also would like to know if these measurements were made under load because that can also make a significant difference.