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Input Operation Test with UUID Data Type
How to run an input operation test with INSERT statements on UUID data type?
✍: FYIcenter.com
If you want to see the impact of larger data type like 16-byte UNIQUEIDENTIFIER (UUID), comparing to the 4-byte INT and 8-byte BIGINT, you can follow this tutorial.
Create the following SQL script, fyi_uuid_insert.sql:
-- fyi_uuid_insert.sql -- Copyright (c) FYIcenter.com DECLARE @Count INT SET @Count = 100 DECLARE @I INT DECLARE @STime DATETIME DECLARE @ETime DATETIME DECLARE @Duration INT CREATE TABLE FYI_UUID (UUID UNIQUEIDENTIFIER) SET @STime = GETDATE() SET @I = 0 WHILE @I < @Count BEGIN INSERT INTO FYI_UUID VALUES (NEWID()) SET @I = @I+1 END SET @ETime = GETDATE() DROP TABLE FYI_UUID SET @Duration = DATEDIFF(millisecond,@STime,@ETime) SELECT @Count AS Count, @Duration AS Duration, 1000*@Count/@Duration AS Throughput, @Duration/@Count AS Latency
Each record now has a single field of UNIQUEIDENTIFIER, which uses 16 bytes.
Now run the script with different @Count values on the Azure SQL Database. You will get something like:
Count Duration Throughput Latency 100 667 149 6 1000 6437 155 6 10000 65073 153 6 25000 159707 156 6
The actual input data throughput is 156 * 16 bytes/sec = 2,496 bytes/sec = 2.5 KB/sec, using the last test result.
Comparing to 4-byte INT records and 8-byte BIGINT records, inserting 8-byte BIGIN records is getting more efficient:
Data type Record size Throughput rec/sec Throughput KB/sec INT 4 231 0.9 BIGINT 8 165 1.3 UNIQUEIDENTIFIER 16 156 2.5
⇒ Input Operation Test with VARCHAR Data Type
⇐ Input Operation Test with BIGINT Data Type
2019-07-30, 1252🔥, 0💬
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