| From: | Michael Stone <mstone+postgres(at)mathom(dot)us> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: [HACKERS] A Better External Sort? |
| Date: | 2005-10-03 21:53:32 |
| Message-ID: | 20051003215332.GS2241@mathom.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-performance |
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.
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