sql server - AWS Aurora 3x slower than MSSQL -


we have big query (big in variables) takes around 3s on mssql. can run query 100x times , of them take 3s.

using aurora, first time query loads takes 9s, takes 500ms, nice, can`t wait 9s every first time run query. actually, not sure how long cache takes place, seems around couple of minutes , have wait 9s again.

i cant clients "i know 9s long, wait half second". reply "i need see data once. doesn't matter me 2nd time faster. don't there."

simulation:

mssql

  • 1st time: 3s
  • 2nd time: 3s
  • 3rd time: 3s
  • ... 10 minutes later
  • xth time: 3s
  • yth time: 3s

aurora

  • 1st time: 9s
  • 2nd time: 500ms
  • 3rd time: 500ms
  • ... 10 minutes later
  • xth time: 9s
  • yth time: 500ms

is expected or doing wrong?


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