| From: | Yuri Astrakhan <yuriastrakhan(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Cc: | Andrey Borodin <x4mmm(at)yandex-team(dot)ru> |
| Subject: | Re: Yet another fast GiST build |
| Date: | 2020-04-03 03:17:40 |
| Message-ID: | 158588386061.24526.3395880113188672625.pgcf@coridan.postgresql.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Awesome addition! Would it make sense to use x86's BMI2's PDEP instruction, or is the interleave computation too small of a percentage to introduce not-so-easy-to-port code? Also, I think it needs a bit more documentation to explain the logic, i.e. a link to https://stackoverflow.com/questions/39490345/interleave-bits-efficiently ? Thx for making it faster :)
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