Re: [PATCH] take 48-bit lba a bit further

[Peter Chubb]

>>>>> "John" == John Bradford <[e-mail]> writes:

John> So, say you have a choice of either a 256Kb request to a low
John> block number, which can use the faster 28-bit mode, or a 512Kb
John> request to the same low block number, which can only be made
John> using 48-bit LBA, which is the best to use?

Interrupt overhead as measured here is greater than the IO overhead
(at least on IA64 and alpha machines).  The bigger the transfer for a
single interrupt, the better.

Peter C