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[PERFORM] Dataset is fetched from cache but still takes same time to fetchrecords as first run - Mailing list pgsql-performance

From Sumeet Shukla
Subject [PERFORM] Dataset is fetched from cache but still takes same time to fetchrecords as first run
Date
Msg-id CABUL137pc8pfW+KLm=7ucXpSDi_eG2qWiFMdR-3-UMEkZ=QUqA@mail.gmail.com
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Responses Re: [PERFORM] Dataset is fetched from cache but still takes same timeto fetch records as first run  (Dave Stibrany <dstibrany@gmail.com>)
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Both the first run and subsequent run takes same amount of time.

First Run:

"Seq Scan on d_payer (cost=0.00..8610.40 rows=121788 width=133) (actual time=8.760..98.582 rows=121788 loops=1)"
" Buffers: shared read=2521"
"Planning time: 16.820 ms"
"Execution time: 108.626 ms"


Second Run:

"Seq Scan on d_payer (cost=0.00..8610.40 rows=121788 width=133) (actual time=0.010..18.456 rows=121788 loops=1)"
" Buffers: shared hit=2521"
"Planning time: 0.083 ms"
"Execution time: 27.288 ms"


Can anyone please help me understand and fix this.


Thanks & Regards,
Sumeet Shukla

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