The service is stateless and can exit freely at any time and is therefore robust against crashes. The list of paths that each process is watching is stored within the D-Bus daemon itself as D-Bus signal match rules. Reads are performed by direct access via mmap to the on-disk database which is essentially a hashtable. For this reason, dconf reads typically involve zero system calls and are comparable to a hashtable lookup in terms of speed.
Practically speaking, in simple non-layered setups, dconf is less than 10 times slower than GHashTable. Writes are assumed only to happen in response to explicit user interaction like clicking on a checkbox in a preferences dialog and are therefore not optimised at all. On some file systems, dconf-service will call fsync for every write, which can introduce a latency of up to ms.
This latency is hidden by the client libraries through a clever "fast" mechanism that records the outstanding changes locally so they can be read back immediately until the service signals that a write has completed. The binary database format that dconf uses by default is not suitable for use on NFS, where mmap does not work well. The user's personal database always takes the highest priority, followed by the system databases in the order prescribed by the profile. If set, dconf will attempt to open the named profile, aborting if that fails.
If the environment variable is not set, it will attempt to open the profile named "user" and if that fails, it will fall back to an internal hard-wired configuration. The GUI program, dconf-editor is installed with dconf-tools package by clicking here or by running. As you can see in the screenshot, all the various schemas can be expanded on the left hand side and the appropriate key selected. It is very straightforward to navigate to the value you want in this case the gnome-mplayer preferences.
You can click the check box to have a value activated or add a numerical value into one of the other boxes. There are many other useful ways that you can tweak settings with both gsettings and dconf-editor and they are straightforward to use.
It is worth looking through them to see if there are options there that are not in the programs' preferences, as you may be able to customize your program just the way you want.
As fossfreedom recently showed in this question. See also:. For those coming from windows that want a simple reply, dconf is the gnome equivalent to the windows registry They first migrated from the traditional unix configs one text files for each app, each with their own format to a standard tree of XML files, managed by gconf. In recent times, as almost no one edited those XML files directly and the performance problems of reading and parsing MANY files, they migrated to a binary format by migrating from gconf to dconf.
Unlike windows registry, dconf should have all config entries listed, even if they are set to the default values. So there are no hidden entries, you can change then or reset then to default easily. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top.
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Ask Question. Asked 10 years, 10 months ago. Active 1 year ago. Viewed k times. What is dconf, and what is the role it plays in Ubuntu? Improve this question. Possible duplicate of How do I use the gconf editor? If no distributions are running, you will receive the response: "There are no running distributions.
WSL supports four sections: automount , network , interop , and user. If the user specifies a gid or uid option explicitly via this key, the associated value will be overwritten.
Otherwise, the default value will always be appended. Note: These options are applied as the mount options for all automatically mounted drives. Setting different mount options for Windows drives DrvFs can control how file permissions are calculated for Windows files. The following options are available:. The permission masks are put through a logical OR operation before being applied to files or directories. These options are only available in the latest preview builds if you are on the latest builds of the Windows Insiders program.
You can add a file named. Please see the sample file below as an example. Global configuration options with. Entries with the path value must be Windows paths with escaped backslashes, e. Entries with the size value must be a size followed by a unit, for example 8GB or MB.
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Privacy policy. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Note If you are having trouble figuring out the name of your distribution, use the command wsl -l. Note Adjusting per-distribution settings with the wsl.
Tip wsl --shutdown is a fast path to restarting WSL 2 distributions, but it will shut down all running distributions, so use wisely. Note The permission masks are put through a logical OR operation before being applied to files or directories.
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