> If you've got excess CPU capacity at night, I wonder if -Z1 or -Z2
> would speed the backup since it reduces the amount of data written
> to disk.
Where to find study which pg_dump compares backup speed and backup size by
using various -Z options ?
I'm wondering by -Z9 increases backup speed.
Info-zip zip.exe -9 config option does not decrease compiression speed
I expected that pg_dump uses same complression algorithm as zip.exe
I'm really wondering why -Z9 decreases backup speed significantly.
Andrus.
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