Tom Lane wrote:
> William Yu <wyu@talisys.com> writes:
>
>>If you have enough memory, you can always make a ramdisk to store the
>>WAL temporarily while you bulk load data. I also temporarily alter the
>>config to set checkpoint_segments = 1 to use as few pg_xlog files as
>>possible.
>
>
> Really? That seems pretty counterproductive to me. I've never seen
> a case where reducing checkpoint_segments increased performance.
> Checkpoints are expensive, and usually you want 'em far apart.
Just poor grammar on my part. I meant decreasing checkpoint_segments
when using a ramdisk for WAL in order to keep Postgres from croaking on
lack of disk space for pg_xlog.