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| author | Dan McGee <dan@archlinux.org> | 2012-01-11 22:39:52 +0100 |
|---|---|---|
| committer | Dan McGee <dan@archlinux.org> | 2012-01-19 05:10:06 +0100 |
| commit | b3612e9cc198f198b3806efa461bf6fc04dd4502 (patch) | |
| tree | 85d6018836a02c4ed4cb1211d3ec73d34a2259c9 /doc | |
| parent | 6e8ca48cbb22c328deab56b1740be04ea7ddba6e (diff) | |
| download | pacman-b3612e9cc198f198b3806efa461bf6fc04dd4502.tar.gz pacman-b3612e9cc198f198b3806efa461bf6fc04dd4502.tar.xz | |
Allow UseDelta option to specify a delta ratio
Rework the frontend and backend to allow passing a ratio value in for
UseDelta rather than having a hardcoded #define-d 0.7 value always used.
This is useful for those with fast connections, who would likely benefit
from tuning this ratio to lower values; it is also useful for general
testing purposes.
The libalpm API changes for this, but we do support the old config file
format with a no-value 'UseDelta' option; in this case we simply use the
old default of 0.7.
We clamp the ratio values to a sane range between 0.0 and 2.0, allowing
ratios above 1.0 for testing purposes.
Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/pacman.conf.5.txt | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/doc/pacman.conf.5.txt b/doc/pacman.conf.5.txt index 2c1a24b2..39132925 100644 --- a/doc/pacman.conf.5.txt +++ b/doc/pacman.conf.5.txt @@ -168,9 +168,13 @@ Options Log action messages through syslog(). This will insert log entries into +{localstatedir}/log/messages+ or equivalent. -*UseDelta*:: - Download delta files instead of complete packages if possible. Requires - the xdelta3 program to be installed. +*UseDelta* [= ratio]:: + Download delta files instead of complete packages if possible. Requires + the `xdelta3` program to be installed. If a ratio is specified (e.g., + `0.5`), then it is used as a cutoff for determining whether to use deltas. + Allowed values are between `0.0` and `2.0`; sensible values are between + `0.2` and `0.9`. Using a value above `1.0` is not recommended. The + default is `0.7` if left unspecified. *TotalDownload*:: When downloading, display the amount downloaded, download rate, ETA, |