Tom Lane wrote:
I would bet that the reason for the slow throughput is that gzip
is fruitlessly searching for compressible sequences. It won't find many.
Indeed, I didn't expect much reduction in size, but I also didn't expect
a four-order of magnitude increase in run-time (i.e. output at
Thanks for all of the suggestions, guys, which gave me some pointers on
new directions to look, and I learned some interesting things.
The first interesting thing was that piping (uncompressed) pg_dump into
gzip, instead of using pg_dump's internal compressor, does bring a lot
of extra paralle
Evening all,
Maiden post to this list. I've a performance problem for which I'm
uncharacteristically in need of good advice.
I have a read-mostly database using 51GB on an ext3 filesystem on a
server running Ubuntu 9.04 and PG 8.3. Forty hours ago I started a
plain-format dump, compressed
