Tdpkg — различия между версиями
(Новая страница: «= tdpkg = The '''tdpkg''' shared library is used to speed up [http://en.wikipedia.org/wiki/Dpkg dpkg] *.list files loading using either [http://1978th.net/tokyoc...») |
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It currently works for the [http://www.debian.org Debian GNU/Linux] system. | It currently works for the [http://www.debian.org Debian GNU/Linux] system. | ||
| − | + | * Grab the sources (git master): https://gitorious.org/lethal-works/tdpkg/archive-tarball/master | |
| − | + | * Source code repository: http://gitorious.org/lethal-works/tdpkg | |
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= build = | = build = | ||
Версия 22:14, 4 октября 2012
Содержание
tdpkg
The tdpkg shared library is used to speed up dpkg *.list files loading using either tokyocabinet or sqlite3.
It currently works for the Debian GNU/Linux system.
- Grab the sources (git master): https://gitorious.org/lethal-works/tdpkg/archive-tarball/master
- Source code repository: http://gitorious.org/lethal-works/tdpkg
build
Requirements: build-essential, libsqlite3-dev (for the sqlite3 backend) and libtokyocabinet-dev (for the tokyocabinet backend)
Type make to build tdpkg with tokyocabinet support.
Type make CACHE=sqlite instead for sqlite3 support.
Important: Library is experimental, it could make your system highly unstable.
usage
Please make a backup copy of your /var/lib/dpkg/info/ directory before using tdpkg.
Manual usage:
LD_PRELOAD=./libtdpkg.so dpkg ...
For system-wide usage use an alias (make sure you use the absolute path to libtdpkg.so):
alias dpkg="LD_PRELOAD=/path/to/libtdpkg.so dpkg" alias apt-get="LD_PRELOAD=/path/to/libtdpkg.so apt-get"
The cache for both sqlite3 and tokyocabinet is located at /var/lib/dpkg/info/tdpkg.cache.
benchmarking
The operations involved with dpkg database reading are mostly done on the file system. For this reason cleaning up the kernel cache is a must before calling either tdpkg or dpkg:
echo 1 > /proc/sys/vm/drop_caches
