diff options
| author | David Kalnischkies <kalnischkies@gmail.com> | 2010-07-09 17:00:28 +0200 |
|---|---|---|
| committer | David Kalnischkies <kalnischkies@gmail.com> | 2010-07-09 17:00:28 +0200 |
| commit | dcdf1ef18b37c243fc707869149f7761d964915c (patch) | |
| tree | d9eeb86dc270317730c3de411e0df2558354942b /doc | |
| parent | a9fe592842bfa17d91f4904d7fb0e3af3adebb17 (diff) | |
* doc/apt.conf.5.xml:
- add and document APT::Cache-{Start,Grow,Limit} options for mmap control
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/apt.conf.5.xml | 17 | ||||
| -rw-r--r-- | doc/examples/configure-index | 4 |
2 files changed, 17 insertions, 4 deletions
diff --git a/doc/apt.conf.5.xml b/doc/apt.conf.5.xml index 39e2c8e6b..7b7290794 100644 --- a/doc/apt.conf.5.xml +++ b/doc/apt.conf.5.xml @@ -199,9 +199,20 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; anything that those packages depend on.</para></listitem> </varlistentry> - <varlistentry><term>Cache-Limit</term> - <listitem><para>APT uses a fixed size memory mapped cache file to store the 'available' - information. This sets the size of that cache (in bytes).</para></listitem> + <varlistentry><term>Cache-Start, Cache-Grow and Cache-Limit</term> + <listitem><para>APT uses since version 0.7.26 a resizable memory mapped cache file to store the 'available' + information. <literal>Cache-Start</literal> acts as a hint to which size the Cache will grow + and is therefore the amount of memory APT will request at startup. The default value is + 20971520 bytes (~20 MB). Note that these amount of space need to be available for APT + otherwise it will likely fail ungracefully, so for memory restricted devices these value should + be lowered while on systems with a lot of configured sources this might be increased. + <literal>Cache-Grow</literal> defines in byte with the default of 1048576 (~1 MB) how much + the Cache size will be increased in the event the space defined by <literal>Cache-Start</literal> + is not enough. These value will be applied again and again until either the cache is big + enough to store all information or the size of the cache reaches the <literal>Cache-Limit</literal>. + The default of <literal>Cache-Limit</literal> is 0 which stands for no limit. + If <literal>Cache-Grow</literal> is set to 0 the automatic grow of the cache is disabled. + </para></listitem> </varlistentry> <varlistentry><term>Build-Essential</term> diff --git a/doc/examples/configure-index b/doc/examples/configure-index index fdec32c2c..26fb53fec 100644 --- a/doc/examples/configure-index +++ b/doc/examples/configure-index @@ -95,7 +95,9 @@ APT Clean-Installed "true"; Immediate-Configure "true"; // DO NOT turn this off, see the man page Force-LoopBreak "false"; // DO NOT turn this on, see the man page - Cache-Limit "4194304"; + Cache-Start "20971520"; + Cache-Grow "1048576"; + Cache-Limit "0"; Default-Release ""; // consider Recommends, Suggests as important dependencies that should |