iharrathi....@orange-ftgroup.com wrote: > 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).
I'll admit I haven't really done any proper benchmarking of BIND on 32 vs 64 bit systems. I have done some benchmarking before though. You're doing the exact same queries, asking for local / locally cached data? Just so I know that you're _really_ comparing apples to apples. The systems are configured exactly the same, also with regars to which other services might be running there, SELinux settings, iptables etc? In my experience: yes BIND9 is multithreaded, but there seems to be very little (if any) gain from letting it use more than 4 CPU cores / threads, meaning the 32 bit 2.33GHz CPU might actually win out purely based on the higher clock frequency. Also, you mentioned you were seeing a similar picture when using tcpreplay - as far as I know tcpreplay is single-threaded - which also suggests the reason it might win out on the 32 bit system is again due to the clock frequency. Regards Eivind Olsen _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
