-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 06/28/2011 12:30 PM, David Sparro wrote: > On 6/28/2011 11:15 AM, [email protected] wrote: >> Hi all, >> I'm testing the same version of bind 9.4-ESV-R4-P1 on two server, one is >> a 32 bit (on which i have a redhat 32 bit) and the second a 64 bit >> server on which i have a redhat 64 bit. >> on the 32 bit i reach 70000 qps but on the 64 bit i only reach 50000 qps >> (using resperf) and also with tcpreplay. >> Is it normal that bind when compiled and installed on a 32 bit server >> have better performance than bind when compiled and installed on a 64 >> bit server. >> the only différence between the two server is 64 bit vs 32 bit ( same >> RAM, same Disk, same NIC,...) and CPU is better on the 64 bit (2 Intel >> E5310 quad-core 1.6Ghz) than the 32 bit(2 Intel Xeon duad-core 2.33Ghz). >> Thanks. >> > > The 32 bit rig is faster (2.33Ghz).
My understanding is that 64-bit is NOT faster in most cases, and only makes some things possible (addressing large amounts of memory is one stand-out) that are not possible with 32-bit. If bind is not going to be using over 4GB of RAM by itself, my understanding is that running 64-bit will merely add overhead. I realize that is a pretty big generalization, so feel free to correct me if you know better. - -- - ---- _ _ _ _ ___ _ _ _ |Y#| | | |\/| | \ |\ | | |Ryan Novosielski - Sr. Systems Programmer |$&| |__| | | |__/ | \| _| |[email protected] - 973/972.0922 (2-0922) \__/ Univ. of Med. and Dent.|IST/CST-Academic Svcs. - ADMC 450, Newark -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk4KEBQACgkQmb+gadEcsb4Z5gCeJDYbXxyg3LXkHvm/Th60Ln0R JLIAoJ+XrmrlJ5bLL+HPBKc/a2uzQMsl =ZuMX -----END PGP SIGNATURE-----
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