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authorDan McGee <dan@archlinux.org>2012-01-11 15:39:52 -0600
committerDan McGee <dan@archlinux.org>2012-01-18 22:10:06 -0600
commitb3612e9cc198f198b3806efa461bf6fc04dd4502 (patch)
tree85d6018836a02c4ed4cb1211d3ec73d34a2259c9 /doc/pacman.conf.5.txt
parent6e8ca48cbb22c328deab56b1740be04ea7ddba6e (diff)
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/pacman.conf.5.txt')
-rw-r--r--doc/pacman.conf.5.txt10
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,