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Re: utf8 and utf8mb4 performance difference
Posted by: hua kai
Date: September 12, 2016 08:55PM

As mysql document, Performance of 4-byte UTF-8 (utf8mb4) is slower than for 3-byte UTF-8 (utf8). To avoid this penalty, continue to use utf8

just not sure if the performance difference is big.

If the column will not use utf8mb4 characters, if defined as utf8mb4, it will cost more performance?

If the performance is very small that could be ignore, it's easy to set table default to use utf8mb4

If the performance is not small that need to take into consider to set column characters to use utf8mb4 and left table default as utf8

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Written By
September 09, 2016 07:25AM
Re: utf8 and utf8mb4 performance difference
September 12, 2016 08:55PM
September 18, 2016 12:20AM
September 19, 2016 02:14AM
September 25, 2016 01:20AM

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