shared_buffers 
----------------
 64MB
(1 row)


Tue Sep  2 01:35:38 PM +08 2025

pgbench (17.6)
transaction type: <builtin: TPC-B (sort of)>
scaling factor: 4
query mode: simple
number of clients: 10
number of threads: 10
maximum number of tries: 1
duration: 360 s
number of transactions actually processed: 1116302
number of failed transactions: 0 (0.000%)
latency average = 3.225 ms
initial connection time = 6.881 ms
tps = 3100.827321 (without initial connection time)

Tue Sep  2 01:41:38 PM +08 2025

 heap_read | heap_hit |       hit_ratio        
-----------+----------+------------------------
     35509 | 20534452 | 0.99827374490403749429
(1 row)