[smokeping-users] Submillisecond RTT measurement accuracy
tobi at oetiker.ch
Fri Jan 15 11:10:04 CET 2010
Today Thomas Klein wrote:
> i have to setup LAN measurements and reporting for a 0.9 ms RTT Service
> Level Objective and try to investigate the Smokeping capabilities to do
> that. Anybody on the list who has done something similar already or can
> give me some hints about the accuracy i may can achieve with Smokeping?
smokeping uses rrdtool internally for data storage, so there is no
fundamental problem with even smaler numbers ... at worst it is a
presentation issue ...
the measurement happens with external tools anyway, so this again
is not something which smokeping will influence ...
> I am also wondering what method will be best, icmp ping, TCP syn, UDP
> echo? Hints are welcome.
this I don't know ...
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900
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