On 2010-04-17, Uwe Klein <uwe_klein_habertw...@t-online.de> wrote: > unruh wrote: >> On 2010-04-15, Russell, David <david.russ...@dowjones.com> wrote: >> >>>I have seen several comments saying that the NIC card in an NTP client can >>>make a difference in how well NTP will perform. >>> >>>My servers are Dells running RedHat. >>> >>>Does anyone have any recommendations for a particularly good NIC card for >>>Gigabit speeds? I am also interested in knowing if there are any known >>>clunkers. >> >> >> I suspect GB cards are worse than 100MB cards in the latency department. >> I have had a number which produced much worse results for ntp ( some >> sort of store and hold in the cards). >> You certainly do not need GB speeds for ntp. > > The core difference may well lie in multiple packets received per interrupt ( > or not ) > which is comfigurable ( on linux, bsd?, win* ????????????? )
How do you configure it on Linux? > > As most other brand new problems it is a performance / (unpredictable) > latency tradeoff: > http://www.google.com/search?q=Interrupt+coalescing > > uwe _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
