Tom Lane wrote:
> shared_buffers is unlikely to impact index build time noticeably in
> recent PG releases. maintenance_work_mem would affect it a lot, though.
> What setting were you using for that?
>
Also, i tried upping maintenance_work_mem to 65536 and it didn't make
much difference (maybe 10% faster for the "normal" cases). Upping the
shared_buffers *definitely* makes the bad cases worse though, but I
agree I don't see why...
Regards,
Gary.