Performance Test Metrics for dns server performance.

[Kevin Darcy]

Matt Simerson wrote:

> As far was the definition of "42% accuracy", I very specifically gave you
> the total number of IP's queried.
>
>   <pasted>
>   dnscache-1.0.5 - 290MB - 90,112 requests
>   simultaneous   time(s)   completed      timed-out      temp fail
>   1,000          964       40,308         9,281          10,073
>   10,000         976       40,496         8,928          11,132
>   100,000        875       40,786         7,562          11,816
>
>   BIND 8.2.3-REL - 6-8MB - 90,112 requests
>   1,000          1144      18,966         5,203          47,638
>   10,000         1157      14,299         4,899          54,236
>   100,000        1200      12,771         5,185          56,575
>   </pasted>
>
> I also gave you the number of successful (completed) lookups. I even
> described exactly how I counted them from the output. If you can handle
> seventh grade math (dependend on local school system quality (or lack
> thereof)), you can calculate accuracy. Is that too challenging for you?

The "timeout" category is rather meaningless without knowing what the client's
timeout and/or retry parameters were set to.

As for "temp fail", does that isolate the SERVFAILs from the local nameserver,
or does it also include SERVFAILs from remote nameservers and/or SERVFAILS
because a transient network problem might have made the query unresolvable
(e.g. none of the delegated nameservers were reachable)?


- Kevin