RE: latency and response time
Hello Greg Thank you for your feedback Latency is the amount of time it takes for a data packet to go from one place to another but Response time it's the total time taken to respond to a service request, including the service time (time to complete the requested task) and the wait time (time spent waiting in a queue for service). For the DNS there are benchmarking tools that give as output the latency time (resperf) and there are tools that give as output the response time (namebench) I want know what is the diffirence for the DNS and which value is the most important. Regars Sami De : Greg Choules Envoyé : mardi 27 juin 2023 21:19 À : RAHAL Sami SOFRECOM Cc : bind-users@lists.isc.org Objet : Re: latency and response time Hi Sami. Let me ask you a question. How would you define the terms "latency" and "response time"? Greg On Tue, 27 Jun 2023 at 17:23, mailto:sami.ra...@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? Regards, Sami -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org<mailto:bind-users@lists.isc.org> https://lists.isc.org/mailman/listinfo/bind-users -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: latency and response time
Hi Sami. Let me ask you a question. How would you define the terms "latency" and "response time"? Greg On Tue, 27 Jun 2023 at 17:23, 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? > > > > Regards, Sami > -- > Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > ISC funds the development of this software with paid support > subscriptions. Contact us at https://www.isc.org/contact/ for more > information. > > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users > -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: latency and response time
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 on behalf of Matus UHLAR -
fantomas
Sent: Tuesday, June 27, 2023 12:54:09 PM
On 27.06.23 16:22, sami.ra...@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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Re: latency and response time
On 27.06.23 16:22, sami.ra...@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. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. The 3 biggets disasters: Hiroshima 45, Tschernobyl 86, Windows 95 -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
