On Saturday 04 December 2004 09:16 pm, Guy wrote: > Ok, now I am confused. > I have a second Dell Precision Workstation 410: > > System A: > CPUs 2 X 500 MHz > RAM 4 X 128 Meg SDRAM > Bus 100 MHz > Timing buffer-cache reads: 128 MB in 0.87 seconds =147.13 MB/sec > > System B: > CPUs 2 X 1000 MHz > RAM 4 X 256 Meg Registered SDRAM > Bus 100 MHz > Timing buffer-cache reads: 524 MB in 2.00 seconds =262.00 MB/sec > > Why is system B almost twice as fast? > Is registered RAM faster? > I know the CPU speed is twice as fast, but the system bus is still 100 MHz. Memory interleaving, perhaps? Registered ram has higher latency. It's possible that the machine is made to do memory interleaving with ECC ram to boost performance.. TJ Harrell - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
