Re: [PATCH] speed up SATA

From: Pavel Machek
Date: Mon Mar 29 2004 - 07:35:55 EST


> Things seem to be looking pretty good, so it's now time to turn on
> lba48-sized transfers. Most SATA disks will be lba48 anyway, even
> the ones smaller than 137GB, for this and other reasons.
> With this simple patch, the max request size goes from 128K to
> 32MB... so you can imagine this will definitely help performance.
> Throughput goes up. Interrupts go down. Fun for the whole family.

32MB is one second if everything goes okay... That will be horrible for latency, right?
64 bytes from icmp_seq=28 ttl=51 time=448769.1 ms

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