Hello all. I just wanted to pass on some testing we have done to increase our qps when running dnsperf with all dns queries being auth zoned by our bind boxes. I was tired of seeing postings on line about some boxes getting 100k qps and knew ours could do better than what it currently was getting Now to be 100% here please read all man pages before mucking with kernel ip stack settings.. My client is Fedora 14 64 (no modified ip stack settings) dnsperf-1.0.1.0-21.fc14.x86_64 Named Server System info (server dose other things too) 8gig ram Two Dual-Core AMD Opteron(tm) Processor 2220 Running 2.6.18-238.9.1.el5 #1 SMP Fri Mar 18 12:42:39 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux Red Hat Enterprise Linux Server release 5.6 (Tikanga) bind-utils-9.3.6-16.P1.el5 bind-chroot-9.3.6-16.P1.el5 bind-libs-9.3.6-16.P1.el5 bind-9.3.6-16.P1.el5 Statistics: Parse input file: multiple times Run time limit: 60 seconds Ran through file: 81 times Queries sent: 1678416 queries Queries completed: 1678361 queries Queries lost: 55 queries Avg request size: 40 bytes Avg response size: 79 bytes Percentage completed: 100.00% Percentage lost: 0.00% Started at: Wed May 25 09:29:49 2011 Finished at: Wed May 25 09:30:49 2011 Ran for: 60.000398 seconds Queries per second: 27972.497782 qps then modified echo 26214400 > wmem_max echo 26214400 > rmem_max Statistics: Parse input file: multiple times Run time limit: 60 seconds Ran through file: 129 times Queries sent: 2654557 queries Queries completed: 2654538 queries Queries lost: 19 queries Avg request size: 40 bytes Avg response size: 79 bytes Percentage completed: 100.00% Percentage lost: 0.00% Started at: Wed May 25 09:34:36 2011 Finished at: Wed May 25 09:35:36 2011 Ran for: 60.000328 seconds Queries per second: 44242.058143 qps then modified echo 65536 > udp_rmem_min echo 65536 > udp_wmem_min Statistics: Parse input file: multiple times Run time limit: 60 seconds Ran through file: 136 times Queries sent: 2797867 queries Queries completed: 2797859 queries Queries lost: 8 queries Avg request size: 40 bytes Avg response size: 79 bytes Percentage completed: 100.00% Percentage lost: 0.00% Started at: Wed May 25 09:38:03 2011 Finished at: Wed May 25 09:39:03 2011 Ran for: 60.000472 seconds Queries per second: 46630.616506 qps echo 100 > max_dgram_qlen Statistics: Parse input file: multiple times Run time limit: 60 seconds Ran through file: 146 times Queries sent: 3008730 queries Queries completed: 3008730 queries Queries lost: 0 queries Avg request size: 40 bytes Avg response size: 79 bytes Percentage completed: 100.00% Percentage lost: 0.00% Started at: Wed May 25 09:41:50 2011 Finished at: Wed May 25 09:42:50 2011 Ran for: 60.000304 seconds Queries per second: 50145.245931 qps -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
