- Berkeley DB Reference Guide:
- Building Berkeley DB for UNIX/POSIX systems
Building a small memory footprint library
There are a set of configuration options to assist you in building a
small memory footprint library. These configuration options turn off
specific functionality in the Berkeley DB library, reducing the code size.
These configuration options include:
- To build Berkeley DB without support for cryptography, enter
--disable-cryptography as an argument to configure.
- To build Berkeley DB without support for the Hash access method, enter
--disable-hash as an argument to configure.
- To build Berkeley DB without support for the Queue access method, enter
--disable-queue as an argument to configure.
- To build Berkeley DB without support for the database environment replication,
enter --disable-replication as an argument to configure.
- To build Berkeley DB without support for the statistics interfaces, enter
--disable-statistics as an argument to configure.
- To build Berkeley DB without support for database verification, enter
--disable-verify as an argument to configure.
- Equivalent to individually specifying --disable-cryptography,
--disable-hash, --disable-queue, --disable-replication,
--disable-statistics and --disable-verify
The following configuration options will increase the size of the Berkeley DB
library dramatically and are only useful when debugging applications:
- Build Berkeley DB with symbols for debugging.
- Build Berkeley DB with read-operation logging.
- Build Berkeley DB with write-operation logging.
- Build Berkeley DB with run-time debugging checks.
In addition, static libraries are usually smaller than shared libraries.
By default Berkeley DB will build both shared and static libraries. To build
only a static library, configure Berkeley DB with the
The size of the Berkeley DB library varies a lot depending on the compiler,
machine architecture, and configuration options. As an estimate,
libraries built with current GNU gcc compilers have footprints in the
range of 425KB to 700KB on 32-bit x86 architectures, and in the range
of 520KB to 820KB on 64-bit x86 architectures.
For assistance in further reducing the size of the Berkeley DB library, or in
building small memory footprint libraries on other systems, please contact
Sleepycat Software support.
Copyright (c) 1996-2005 Sleepycat Software, Inc. - All rights reserved.