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I have two servers where I installed SQL Server 2008
When I try to execute a script with about 35.000 inserts, on the test server I need 30 sec and instead on the production server more than 2 min!
Does anybody know why such difference? I mean, the DB are configured in the same way and the production server has also a RAID config, a better processor and memory…
THANKS!
Be aware that RAID 1 is for redundancy, and speed varies depending on the scenario. 35k inserts could cause a heavy random write overhead, slowing down performance.
How are you inserting these rows, are they wrapped in a SQL Transaction? If not already, then know that transactions cache queries and does batch disk updates, greatly increasing speed.
If it’s via a SQL script file, wrap the inserts in BEGIN TRANSACTION / END TRANSACTION. For so many records importing from file is probably better.