page
A unit representing how much data InnoDB transfers at any one time between disk (the data files) and memory (the buffer pool). A page can contain one or more rows, depending on how much data is in each row. If a row does not fit entirely into a single page, InnoDB sets up additional pointer-style data structures so that the information about the row can be stored in one page.
One way to fit more data in each page is to use compressed row format. For tables that use BLOBs or large text fields, compact row format allows those large columns to be stored separately from the rest of the row, reducing I/O overhead and memory usage for queries that do not reference those columns.
When InnoDB reads or writes sets of pages as a batch to increase I/O throughput, it reads or writes an extent at a time.
All the InnoDB disk data structures within a MariaDB instance share the same page size.
See also buffer pool.
See also compact row format.
See also compressed row format.
See also data files.
See also extent.
See also page size.
See also row.