Hi Andrew, On Mon, Nov 23, 2015 at 12:19:22PM -0600, Andrew Hayworth wrote: > That said, the difference between one and two map lookups is > negligible, so I don't think you're saving much this way and it'll > make configuration harder in some ways if you keep adding IPs. I can > vouch from personal experience in production that we run 2+ map > lookups on every request at Braintree (hundreds of req/s) and it adds > no noticeable latency. Food for thought. :)
I agree, depending on the map size, you'll see something between 1 and 10 million lookups per second, it's quite cheap. I do abuse them as well and I don't bother about the number of lookups. Sure if I have to match a country among a few tens, I'll certainly use a variable first, but otherwise I don't care. Willy
