Re: speedup tidbitmap patch: cache page - Mailing list pgsql-hackers

> You could well be right, but it would be good to compare the numbers just so we
> know this for sure.
I wasn't right :(

# set work_mem='64kB';
# set enable_seqscan  = off;
Patched: 1194.094 ms
Master:  1765.338 ms

 > Are you seeing the same?
Fixed too, the mistake was in supposition that current page becomes lossy in
tbm_lossify. It's not always true because tbm_lossify() could lossify only part
of pages and we don't know which. Thank you very much.

--
Teodor Sigaev                                   E-mail: teodor@sigaev.ru
                                                    WWW: http://www.sigaev.ru/