Re: [PATCH] speed up SATA

Jeff Garzik
2004-03-28T19:06:50Z

Jens Axboe wrote:
> Yep it sure does, but try and find a drive attached to a SATA controller
> that cannot do 40MiB/sec (or something like that). Storage doesn't move
> _that_ fast, you can keep up.

Nanosecond latencies and disturbingly high throughput are already
possibly today :) Consider the battery-backed RAM gadgets that present
themselves as ATA devices, or nbd over 10gige network.

In fact I'm about to strip down drivers/scsi/sata_promise.c to a driver
that just talks to the DIMM, and another else: drivers/block/pdc_mem.c.
At that point you're really just looking at the PCI bus and RAM limits...

Jeff