> sure.. but if the defaults are 0... why couldn't mode 1 by > the default.. > isn't mode 1 with coalesing value 0 the same as mode 0.. and > if so.. why > need a mode 0 in the first place ? There's no gain - and in fact there is now a loss. Queuecommand now eats up more cycles attempting to service i/o completions on every invokation. Nothing gets helped on the interrupt side. We would still have interrupts firing, thus the interrupt handler being invoked to clear the interrupt. We're going to consume more cycles for a) queuecommand calls that don't have i/o completions available, and b) for handling spurious interrupts. -- james - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
