"Joshua D. Drake" <[EMAIL PROTECTED]> writes:
> Tom Lane <[EMAIL PROTECTED]> wrote:
>> Some vmstat and oprofile investigation seems called for. Right now
>> we're just guessing about what the bottleneck is.
> vmstat -adSK 5
> ...
Looks to me like you're disk-bound (and your kernel is pretty bad at
distinguishing "idle" from "disk wait" states). Plain COPY into an
index-less table ought to be writing fairly linearly, so I'm surprised
you aren't able to get more out of the disk. Have you got WAL on
a separate spindle from the database?
regards, tom lane
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