Maximum limit of query per second

iharrathi.ext at orange-ftgroup.com iharrathi.ext at orange-ftgroup.com
Wed Apr 6 13:46:47 UTC 2011


The result i found with resperf, are not OK for me because when i test with tcpreplay ( i monitor packet in and packet out, and i dont see any problem in CPU or RAM) i found a maximum throughput less (40%) than what i found with resperf. 
Your test was on linux or Unix, and which hardware? Do you try with tcpreplay?

Thanks.
Issam HARRATHI

-----Message d'origine-----
De : Eivind Olsen [mailto:eivind at aminor.no] 
Envoyé : mercredi 6 avril 2011 15:26
À : HARRATHI Issam Ext OLNC/DPS
Cc : bind-users at lists.isc.org
Objet : Re: Maximum limit of query per second

iharrathi.ext at orange-ftgroup.com wrote:

> Have some one reach the number 100000 qps for example. Of course we

During testing - yes I have reached that number. This was with resperf utility which by default speeds up towards 100000. From the man pagzae:
"By default, resperf will send traffic for 60 seconds, linearly increasing the amount of traffic from zero to 100,000 queries per second.". You can tell it to work towards higher numbers with the "-m "command line option.
This was with no tuning, by the way. No special compile options. I did increase the amount of allowed recursive clients in named.conf, but that's all.

I didn't spend time on getting higher qps during testing, as I figured 100000 qps in best-case conditions on a single server would suffice, at least for the time being.

Regards
Eivind Olsen



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