On Mon, May 7, 2012 at 8:27 PM, Steven Carr <sjc...@gmail.com> wrote: > I think you'll probably find that, averaged out over say a period of 1 hour, > an active user will perform at least 1 query every 1-2 seconds. > > Twitter, Facebook, anything that uses Ajax and not to mention tons of other > CDNs, Ad Networks etc. eat DNS queries like candy and then the underlying OS > querying for various services which will inevitably end up at your resolver. > > Then don't forget IPv6, most of the new browsers already send a query for > AAAA at the same time they query for A. >
On my laptop, I am using dnssec-trigger and consuming unbound logs with a local Splunk instance. There's plenty of AAAA queries, as well as PTRs (utorrent's "geolocation" feature and the like). Twitter app accounts for 8% of the queries, approximately (I cant tell about Facebook). Here's a detailed table: A 391,016 79.693% PTR 55,315 11.274% AAAA 43,092 8.782% TXT 825 0.168% SOA 327 0.067% NS 47 0.01% SRV 6 0.001% MX 5 0.001% TYPE1169 3 0.001% <- Berkeley's ICSI Netalyzr tests This is making around 490,600 queries since January 1st, which gives roughly 2.6 queries per minute. Keep in mind laptop isnt always on, unlike modern desktops. You can make your own numbers if you consider I am using the laptop for some 6 hours a day on average, to get a way more real estimate. You can, also, easily measure it yourself. Best, > Steve > > > > > On 7 May 2012 14:42, bert hubert <bert.hub...@netherlabs.nl> wrote: >> >> On Mon, May 07, 2012 at 09:13:50AM -0400, Stephane Handfield wrote: >> > Hello DNS operators, >> > >> > I want to know what rules you follow in terms of capacity planning for >> > your >> > DNS. I am mainly interested in the best planning practice for caching >> > DNS. >> > Definitly our rules need to reflect a lots of our own reality, in term >> > of >> > agility of deployment, risks, etc. But I'm really interested to know if >> > exists any rule of thumb which mostly apply to any situations. >> >> Here's one. One resolving request per 'broadband residential internet' >> subscriber per ten seconds. This is the 'smooth peak nuber'. >> >> Holds up quite well, although this number is a bit old. It might be eeking >> towards one request per five seconds now. >> >> Adjust width of thumb accordingly! >> >> Bert >> _______________________________________________ >> dns-operations mailing list >> dns-operations@lists.dns-oarc.net >> https://lists.dns-oarc.net/mailman/listinfo/dns-operations >> dns-jobs mailing list >> https://lists.dns-oarc.net/mailman/listinfo/dns-jobs > > > > _______________________________________________ > dns-operations mailing list > dns-operations@lists.dns-oarc.net > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs -- - Así que este es el futuro del hombre: calentarse a los rayos del sol, bañarse en las claras corrientes de agua, y comer los frutos de la tierra olvidando todo trabajo y fatiga. - Bueno, y por qué no? "El tiempo en sus manos" _______________________________________________ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
