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performance, index tuning etc

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John Cardinal
2021-10-20 18:40:48 +00:00
parent 8670ea5883
commit 57abdb5ad9
1 changed files with 10 additions and 20 deletions
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ayanova/devdocs/todo.txt
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@@ -31,37 +31,27 @@ hotspots or potential ones in small sample generation:
todo: perf, test installed postgres vs standalone jimmied one for same op todo: perf, test installed postgres vs standalone jimmied one for same op
YES, very important to know this, is my cobbled together standalone postgres as good as installed or huge diff?? YES, very important to know this, is my cobbled together standalone postgres as good as installed or huge diff??
perf: UNIT unique indexes on names and serial numbers to speed up validation on create?? CREATE INDEX IF NOT EXISTS idx_atranslationitem_key
Needs enough data to be a test, here's the check in sql: ON public.atranslationitem USING btree
--after adding index on serial (key COLLATE pg_catalog."default" ASC NULLS LAST)
explain (analyze,buffers,timing)
SELECT EXISTS (
SELECT 1
FROM aunit AS a
WHERE ((a.serial = 'wqwerqwe') AND (a.unitmodelid = 7)) AND (a.id <> 0))
Execution Time: 0.087 ms
CREATE INDEX IF NOT EXISTS idx_aunit_serial
ON public.aunit USING btree
(serial COLLATE pg_catalog."default" ASC NULLS LAST)
TABLESPACE pg_default; TABLESPACE pg_default;
CREATE INDEX IF NOT EXISTS idx_aunit_modelid
ON public.aunit USING btree
(unitmodelid ASC NULLS LAST)
TABLESPACE pg_default;
SEEDING PERF LEVELS: SEEDING PERF LEVELS:
2021-10-20 10:06:12.8367|INFO|Seeder|Small level sample data seeded in 16 seconds 2021-10-20 10:06:12.8367|INFO|Seeder|Small level sample data seeded in 16 seconds
2021-10-20 10:29:52.5918|INFO|Seeder|MEDIUM level sample data seeded in 1 minute and 44 seconds 2021-10-20 10:29:52.5918|INFO|Seeder|MEDIUM level sample data seeded in 1 minute and 44 seconds
#Added indexes to speed up validation on aunit for serial and modelid #Added indexes to speed up validation on aunit for serial and modelid
2021-10-20 10:35:34.5693|INFO|Seeder|MEDIUM level sample data seeded in 1 minute and 49 seconds
2021-10-20 10:48:06.2517|INFO|Seeder|LARGE level sample data seeded in 4 minutes and 13 seconds
# here removed unitmodelid index as it never seems to be used but serial is a lot
2021-10-20 10:59:30.1027|INFO|Seeder|LARGE level sample data seeded in 4 minutes and 10 seconds
# No difference so keeping only the serial index
-------------------------------------
todo: ops document where is the query timeout setting and how to adjust it for timeouts in long running queries? todo: ops document where is the query timeout setting and how to adjust it for timeouts in long running queries?
todo: hard cap on appointments brought back controlled by client in settings otherwise unusable todo: hard cap on appointments brought back controlled by client in settings otherwise unusable