Re: [PATCH] speed up SATA

[Jeff Garzik]

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



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/