| Package Information |
| Summary |
A fast database for constant data with memory sharing across processes |
| Maintainers |
Lorenzo Castelli <lorenzo@hyves.nl> (lead) [details]
|
| License |
BSD |
| Description |
CHDB (constant hash database) is a fast key-value database for constant data,
realized by using a memory-mapped file and thus providing the following
functionalities:
- Extremely fast initial load, regardless of the size of the database.
- Only the pages of the file which are actually used are loaded from the disk.
- Once a page is loaded it is shared across multiple processes.
- Loaded pages are cached across multiple requests and even process recycling.
A typical use of CHDB is as a faster alternative to defining many PHP
constants.
CHDB is internally implemented as a hash-table using a perfect hashing function,
thus guaranteeing worst case O(1) lookup time. |
| Homepage |
http://github.com/lcastelli/chdb |
Release notes
Version 1.0.2
(stable) |
- Fix compilation for PHP 5.4 (thanks to Sebastian Volland).
- Use RuntimeException instead of Exception for runtime errors.
- Generate slightly better error in case of input size of 1. |
