Robert Haas wrote:
> I suppose one interesting question is to figure out if there's a way I
> can optimize the disk configuration in this machine, or the Linux I/O
> scheduler, or something, so as to reduce the amount of time it spends
> waiting for the disk.
I'd be curious to know if using the deadline scheduler will improve
things. I have experienced pretty bad performance with cfq under
load, where sequential table scans were starved to the point where
they took hours instead of less than a minute (on an idle system).
But I believe that also depends a lot on the storage system used.
Yours,
Laurenz Albe
