Question when testing Caching Server with resperf
duonghoahoc_k49cd at yahoo.com
Tue Jan 25 08:51:17 UTC 2011
Hi Eivind Olsen,
The command to did test is
/usr/local/nom/examples/dnsperf/queryfile-example-100thousand -s localhost -P
queryfile-example-100thousand or queryfile-example-3million are provided by
Nominum. Each line on file is a input to query so each file have 100 000 and 3
000 000 lines( queries). So data is external data and real data.
First test: When i use queryfile-example-100thousand, i did two command. Its ok
with first command with result 9000 throughput. The second command is "ran out
of query data". So it mean resperf use all the lines ( queries ) of file. So
resperf doesn't re-use the same 65000 line that was run in the first command.
May be it used 65000 line randomly, i don't know. I can' find how it works with
query in Nominum document. So i need help at this.
Second test: Next, i flush cache. I run command with 3million query file. And
run continuesly the command and check named process by top. The process just
reach to 600Mb and not increase anymore. So it mean the cache is not increase.
But if the command use different query each time (as first test) why it doesnt
increase? As i think, the cache will save new queries and it will help faster
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