Stan Hoeppner:
[ Charset ISO-8859-1 unsupported, converting... ]
> Wietse Venema put forth on 11/24/2010 6:18 AM:
>
> > That's 0.5 seconds to read the table once, and milliseconds to query it.
>
> Is it? I must be misreading this then. But it sure looks like each
> query is taking over half a second.
>
> Table has 67669 CIDRs:
>
> [r...@greer]/etc/postfix/cidr_files$ time postmap -q 1.1.1.1 cidr:dnswl
>
> real 0m0.618s
> user 0m0.464s
> sys 0m0.064s
You measure the TIME TO COMPILE PLUS TIME TO QUERY. That is not at
all representative for how Postfix daemon processes use the table.
To SEPARATE the ONE-TIME COMPILE cost from the INCREMENTAL QUERY cost,
time postmap -q 1.2.3.4 cidr:dnswl
time postmap -q - cidr:dnswl < A-VERY-LARGE-FILE
and deduct one from the other.
Wietse
