Swam engine buffer size too small
- #SWAM ENGINE BUFFER SIZE TOO SMALL HOW TO#
- #SWAM ENGINE BUFFER SIZE TOO SMALL PLUS#
- #SWAM ENGINE BUFFER SIZE TOO SMALL FREE#
Run this to see the values for your system. Suggest cutting them down proportionately. If that leads to swapping, cut both settings back. Set innodb_buffer_pool_size to no more than 110% of that total. Set key_buffer_size no larger than that size.Īdd up Data_length + Index_length for all the InnoDB tables. This will set the main cache settings to the minimum it could be important to systems with lots of other processes and/or RAM is 2GB or smaller.ĭo SHOW TABLE STATUS for all the tables in all the databases.Īdd up Index_length for all the MyISAM tables.
#SWAM ENGINE BUFFER SIZE TOO SMALL PLUS#
By default it contains 16KB data and index blocks from the open tables (see innodb_page_size), plus some maintenance overhead.įrom MariaDB 5.5, multiple buffer pools are permitted this can help because there is one mutex per pool, thereby relieving some of the mutex bottleneck. InnoDB does all its caching in a the buffer pool, whose size is controlled by innodb_buffer_pool_size. If it is high (say, over 10), then the key buffer is big enough, otherwise you should adjust the key_buffer_size value. Then calculate Key_read_requests / Key_reads.
#SWAM ENGINE BUFFER SIZE TOO SMALL FREE#
MYD file) is left to the OS, so be sure to leave a bunch of free space for this.Ĭaveat: Some flavors of OS always claim to be using over 90%, even when there is really lots of free space.
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If you have a tiny antique, or a tiny VM, then those percentages are too high. The 20%/70% assumes you have at least 4GB of RAM. Be sure the changes are under the section, not some other section.
![swam engine buffer size too small swam engine buffer size too small](https://i.ytimg.com/vi/587ISew2TGo/hqdefault.jpg)
Don't change anything else unless you run into trouble (eg, max connections).Don't get carried away with the query cache until you understand what it can and cannot do.Slow queries can usually be 'fixed' via indexes, schema changes, or SELECT changes, not by tuning.Change key_buffer_size and innodb_buffer_pool_size according to engine usage and RAM.Start with released copy of my.cnf / my.ini.(Plus key_buffer_size = 10M, small, but not zero.) If only using InnoDB, set innodb_buffer_pool_size to 70% of available RAM. If only using MyISAM, set key_buffer_size to 20% of available RAM. HyperThreading and Multiple Cores (CPUs)Īllocating RAM for MariaDB - The Short Answer.
#SWAM ENGINE BUFFER SIZE TOO SMALL HOW TO#