Thanks to Winfried and others for the response!
It was indeed the pdns-distributes-queries config that did the trick. My
query file was only 1 query, so all the queries were sent to one thread. I
tried it with a query file with 500 queries, the load was distributed to
all 12 threads evenly.
The l
Hi Grace,
Since 3.7.0, Recursor distributes queries to the threads itself. See
https://doc.powerdns.com/md/recursor/settings/#pdns-distributes-queries
Additional it hashes the queries with the goal to send the same query to
the same thread. This improves the cache hit rate and thus the average
Grace Wang writes:
>> I installed pdns-recursor 4.0.3 on a CentOS 6.5 box, that has 20 physical
>> cores and 128G RAM. When I set the threads in /etc/pdns-recursor/
>> recursor.conf to be 4 or 12, then issued tons of queries (one query sent
>> multiple times using multiple dnsperf instances simul
Sorry for not including a subject in the original post.
On Thu, Oct 20, 2016 at 3:51 PM, Grace Wang
wrote:
> Hi There,
>
> I installed pdns-recursor 4.0.3 on a CentOS 6.5 box, that has 20 physical
> cores and 128G RAM. When I set the threads in /etc/pdns-recursor/
> recursor.conf to be 4 or 12,
