myisam vs innodb performance

perform a large number of insert or update operations in your app, you should use InnoDB, which can improve the performance of multiple user concurrency operations. Common commands:(1) View the storage type of table (three kinds):Show CREATE TABLE tablenameShow Table status from DBName where Name=tablenamemysqlshow-u user-p password--status dbname tablename(2) Modify the table's storage engine:ALTER TABLE

myisam_sort_buffer_size=100m key_buffer_size=82m read_buffer_size=64k read_rnd_buffer_size=256k sort_buffer_size=256k Innodb_ additional_mem_pool_size=4m innodb_flush_log_at_trx_commit=1 innodb_log_buffer_size=2m Innodb_buffer_ pool_size=159m innodb_log_file_size=80m innodb_thread_concurrency=8 MyISAM and InnoDB Storage engine performance differen

See: http://blog.yemou.net/article/query/info/tytfjhfascvhzxcyt3581, transaction processingInnoDB supports transactional features, MyISAM not supported.Myisam executes faster and performs better.2,select, UPDATE, INSERT, delete operationMyISAM: If performing a large number of select,myisam is a better choiceInnoDB: If your data performs a large number of inserts or update, for

Reference: InnoDB or MyISAM talk about MySQL storage engine selection MYSQL: InnoDB or MyISAM? MyISAM: This is the default type. It is based on the traditional isam type. isam is the abbreviation of indexed sequential access method (sequential access method with indexes, it

Two major MySQL storage engines: InnoDB and MyISAM and innodbmyisam 1. InnoDB Storage Engine In MySQL5.5, InnoDB becomes the default storage engine..InnoDB is a transactional storage engine designed to handle a large number of short-term transactions. Its

processing and fault recovery. The small size of the database determines the duration of fault recovery. InnoDB can use transaction logs to recover data, which is faster. However, MyISAM may take several hours or even a few days to do these tasks. InnoDB only needs a few minutes. The habit of operating database tables may also be a factor that has a great impa

Label:The main difference between the two types is that InnoDB supports transactional and foreign key and row-level locks. MyISAM is not supported. So MyISAM tend to be considered only suitable for use in small projects. I use MySQL as a user point of view, InnoDB and MyISAM

get a lock, before the operation is completed, others cannot operate on this table. Therefore, if the table concurrency is high, Myisam performance may be worse. Myisam supports row locks, that is, you can lock only a row rather than the entire table. Therefore, in the case of concurrent operations, the performance of

dozens of G.4. Business SupportMyISAM: The emphasis is on performance, where each query is atomic and executes several times faster than the InnoDB type, but does not provide transactional support. InnoDB: Provides advanced database features such as transaction support transactions, foreign keys, and so on. Transaction Security (Transaction-safe (ACID compliant)

MKey_buffer_size = 82 MRead_buffer_size = 64 KRead_rnd_buffer_size = 256 KSort_buffer_size = 256 KInnodb_additional_mem_pool_size = 4 MInnodb_flush_log_at_trx_commit = 1Innodb_log_buffer_size = 2 MInnodb_buffer_pool_size = 159 MInnodb_log_file_size = 80 MInnodb_thread_concurrency = 8 The performance of MyISAM and InnoDB Storage engines is not very different. For

the two engines. You must scan all the data to obtain the result. 6. InnoDB is designed for the maximum performance when processing a large amount of data. Its CPU efficiency may be unmatched by any other disk-based relational database engine. 7. MyISAM supports full-text indexing (FULLTEXT). InnoDB does not. 8. The e

First, the main difference1. Transaction ProcessingInnoDB supports transactional features, MyISAM not supported. Myisam executes faster and performs better. 2, select, UPDATE, INSERT, delete operationMyISAM:if executing a lot of select,myisam is a better choiceInnoDB:If your data performs a large number of inserts or update, for

InnoDB and MyISAM are the two most common table types used by many people when using MySQL. The two table types have their own advantages and disadvantages, depending on the specific application. The basic difference is that the MyISAM type does not support advanced processing such as transaction processing, while the InnoDB