Re: [PERFORM] A Better External Sort? - Mailing list pgsql-hackers

On Mon, Oct 03, 2005 at 01:34:01PM -0700, Josh Berkus wrote:
>> >Realistically, you can't do better than about 25MB/s on a
>> > single-threaded I/O on current Linux machines,
>>
>> What on earth gives you that idea? Did you drop a zero?
>
>Nope, LOTS of testing, at OSDL, GreenPlum and Sun.   For comparison, A
>Big-Name Proprietary Database doesn't get much more than that either.

You seem to be talking about database IO, which isn't what you said.