On Tue, Dec 7, 2021 at 12:35 AM SATYANARAYANA NARLAPURAM
<satyanarlapuram@gmail.com> wrote:
>
> If the segment size is 16MB it shouldn't take much time but higher segment values this can be a problem. But again,
thecurrent segment has to be filled 75% to precreate new one. I am not sure how much we gain. Do you have some numbers
withdifferent segment sizes?
I don't have the numbers. However I agree that the pre-allocation can
make end-of-recovery checkpoint times more. At times, the
end-of-recovery checkpoint itself will take a good amount of time and
adding to it the pre-allocation of WAL time doesn't make sense.
Regards,
Bharath Rupireddy.