At 10:02 AM 3/31/2008, Erik Southworth wrote: >I don't know if that's a 64_bit issue or an AMD vs Intel issue. I've seen >some hosting sites claim they can guarantee 500fps using AMD based systems. >I think if the binary is compiled for AMD opteron and I use opteron >hardware the bottle neck would be the kernel parameters compiled in. I'm >currently using an Athlon /proc which is not ideal for the Opteron binary. >It's just for testing some of the kernel builds I plan on testing. The fps >right now is only 150fps on stock kernel with HZ=300, but it is stable.
FPS is calculated by measuring the differences between 2 gettimeofday() calls and multiplying it by, IIRC, 1000. gettimeofday() is sourced by whatever drives your clocks. TSC is very fast, but skews. HPET is nice to have, ACPI is slow to read and the 8254 is very very slow to read. Your best bet is to use HPET if your hardware supports it. If not, use TSC. -- Gary Stanley ([EMAIL PROTECTED] | [EMAIL PROTECTED]) http://leaf.dragonflybsd.org/~gary _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
