On Oct 30 2007 16:46, Aaron Kulkis wrote: >> >> Because everyone knows that the disk >> drive/SATA-bus/controller/PCI-bus/DMA are the limiting factors in raw >> dd speed, so who cares how the kernel/app are compiled. > > But dd doesn't write to disk... it writes to buffers > held in RAM, and then forgets about it, letting the > system flush the buffers out to disk when needed.
Yes, and that is the problem. As soon as your data set is bigger than the immediately available cache, write-out will happen and a speed drop will be visible. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
