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4c910f3bbe
This commit replaces the per-page buffer read look in blgetbitmap() with a reading stream, to improve scan efficiency, particularly useful for large bloom indexes. Some benchmarking with a large number of rows has shown a very nice improvement in terms of runtime and IO read reduction with test cases up to 10M rows for a bloom index scan. For the io_uring method, The author has reported a 3x in runtime with io_uring while I was at close to a 7x. For the worker method with 3 workers, the author has reported better numbers than myself in runtime, with the reduction in IO stats being appealing for all the cases measured. Author: Xuneng Zhou <xunengzhou@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com> Discussion: https://postgr.es/m/CABPTF7VrqfbcDXqGrdLQ2xaQ=K0RzExNuw6U_GGqzSJu32wfdQ@mail.gmail.com |
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| .. | ||
| expected | ||
| sql | ||
| t | ||
| .gitignore | ||
| blcost.c | ||
| blinsert.c | ||
| bloom--1.0.sql | ||
| bloom.control | ||
| bloom.h | ||
| blscan.c | ||
| blutils.c | ||
| blvacuum.c | ||
| blvalidate.c | ||
| Makefile | ||
| meson.build | ||