latency and response time

[Andrew P.]

Personally, I would consider response time to be the duration between the arrival of a request at the DNS server and when the server spits the response for the request out its local network interface, and latency to be the additional time the request and response spend traversing the network between the client and server.

So what the client sees is the sum of response_time + (2 * latency) {making the somewhat arbitrary assumption that the latency is the same in both directions, which isn't really valid just because of the different sizes of the request and response, potentially exacerbated by network links on the path with asymmetrical baud rates}.

Just my $.02 (or whatever your local currency is).

Andrew Pavlin
ka2ddo.org


________________________________
From: bind-users <bind-users-bounces at lists.isc.org> on behalf of Matus UHLAR - fantomas <uhlar at fantomas.sk>
Sent: Tuesday, June 27, 2023 12:54:09 PM

On 27.06.23 16:22, sami.rahal at sofrecom.com wrote:
>Hello In DNS benchmarking  which is more important latency or response
> time?  for a DNS server what is the difference between the two values?

I don't see any difference between those two.

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