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Overview
| Comment: | Fix typo. |
|---|---|
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
be9d86ac89c555c416fb7dcbc56d9878 |
| User & Date: | mistachkin 2018-09-17 12:48:51 |
Context
|
2018-09-17
| ||
| 18:38 | Initial change log for version 3.25.1. check-in: 9daac74fb0 user: drh tags: trunk | |
| 12:48 | Fix typo. check-in: be9d86ac89 user: mistachkin tags: trunk | |
|
2018-09-15
| ||
| 04:26 | Version 3.25.0 check-in: 9089e073c4 user: drh tags: trunk, release, version-3.25.0 | |
Changes
Changes to pages/fileio.in.
752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 |
database files in main-memory on a per-page basis. When SQLite requires
data from a database file to satisfy a database query, it checks the <i>
page cache</i> for usable cached versions of the required database
pages before loading it from the database file. If no usable cache
entry can be found and the database page data is loaded from the database
file, it is cached in the <i>page cache</i> in case the same data is
needed again later. Because reading from the database file is assumed to
be an order of magnitude faster than reading from main-memory, caching
database page content in the <i>page cache</i> to minimize the number
of read operations performed on the database file is a significant
performance enhancement.
<p>
The <i>page cache</i> is also used to buffer database write operations.
When SQLite is required to modify one of more of the <i>database pages</i>
|
| |
752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 |
database files in main-memory on a per-page basis. When SQLite requires
data from a database file to satisfy a database query, it checks the <i>
page cache</i> for usable cached versions of the required database
pages before loading it from the database file. If no usable cache
entry can be found and the database page data is loaded from the database
file, it is cached in the <i>page cache</i> in case the same data is
needed again later. Because reading from the database file is assumed to
be an order of magnitude slower than reading from main-memory, caching
database page content in the <i>page cache</i> to minimize the number
of read operations performed on the database file is a significant
performance enhancement.
<p>
The <i>page cache</i> is also used to buffer database write operations.
When SQLite is required to modify one of more of the <i>database pages</i>
|