Tagged with "innodb"

Fun MySQL fact of the day: buffer pool size

Yesterday, we started to discuss the InnoDB buffer pool and I noted that 80% of a system's memory makes a decent starting size for the buffer pool. However, this is somewhat meaningless since we didn't consider how much memory we'd want our system to have. Today we ... read more

Fun MySQL fact of the day: a free ORDER

On February 28, we discussed that the order of results from a query in the absence of an ORDER BY clause are implementation specific. We also observed that in InnoDB, this implementation-specific behaviour tends to be the order of records as they are sorted in the index from which they ... read more

Fun MySQL fact of the day: so many index reads

On Friday, we discussed the separate roles that MySQL and InnoDB have while querying data. Specifically, we looked at how InnoDB reads data for MySQL and how MySQL may or may not be tasked with additional filtering of the data. We also briefly discussed how MySQL may choose to use ... read more
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