> On Jun 3, 2024, at 9:06 PM, Ron Johnson <ronljohnsonjr@gmail.com> wrote:
>
> Takes 2 hr 45 min for us to do a weekly full backup of the 6.1TB instance using integrated gzip compression (it's an
oldRHEL6 system, so nothing better) and 24 threads. Size 3.3T after compression, which is surprising based on how much
already-compressedbytea data there is.
FYI, Naveed, there's a tradeoff available in current versions of pgbackrest. It can be configured to use lz4
compression.For us, that means close to 50% larger backups than gzip, but many times faster. 3.2TB in 30 minutes, using
8processes, 725GB backup size--no already compressed bytea, but a good bit of incompressible UUID columns.
Good enough that I stopped doing daily incrementals, and just take full backups daily.