问题
Why is myisam storage engine is faster than Innodb storage engine
what makes it to be faster and innodb to be slow?
回答1:
MyISAM can be faster than innodb because it has a simpler design. Also it has been around a much longer time, and has more time to accumulate incremental improvements and optimizations based on data on real usage.
Design of MyISAM is based on ISAM: http://en.m.wikipedia.org/wiki/ISAM
The speed comes with a price though: MyISAM does not support transactions or foreign keys. This means it is optimal for example for saving and analyzing log data, and as a backend for data mining and data warehouse technologies, while innodb is better for transaction processing and as the storage layer of information systems in general.
Wikipedia has a nice comparison of MySQL storage engines here: http://en.m.wikipedia.org/wiki/Comparison_of_MySQL_database_engines
来源：https://stackoverflow.com/questions/15608955/why-is-myisam-storage-engine-is-faster-than-innodb-storage-engine