Re: Insertion performance degrade with large index
Posted by:
Rick James
Date: April 12, 2013 08:23PM
Increasing key_buffer_size may help up to a point. At some point it will hurt other things. Don't go beyond something like 70% of available RAM. If you set it near to, or bigger than, RAM, then there would swap. This would cause terrible performance.
Would you care to describe your application, the type of values you are indexing, and the SELECTs that need the indexes. There may be some techniques for improving things aside from tuning.
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