When comparing Perforce vs Fossil, the Slant community recommends Fossil for most people. In the question“What are the best version control systems?” Fossil is ranked 3rd while Perforce is ranked 6th. The most important reason people chose Fossil is:
Fossil includes source code management, bug tracking, a wiki, and technotes. It even includes its own web server, though it can fairly easily be incorporated into other webservers.
Ranked in these QuestionsQuestion Ranking
Pro Multi platform availability
Pro GUI and Visual Studio integration available
Pro Central repository/server
There's a central repository and a clear path/protocol how to reach it.
Pro Very complete
Fossil includes source code management, bug tracking, a wiki, and technotes.
It even includes its own web server, though it can fairly easily be incorporated into other webservers.
A Fossil repository is contained in a single file.
Fossil can run on Linux, Mac, BSD derivatives and on Windows.
Pro Very easy to configure as self-hosted.
Single, stand-alone executable, including web server.
Pro Needs very few server resources
Since Fossil is a distributed VCS on top of being a bug tracker, it needs very few server resources.
Con Closed Source
Branching becomes a pain due to its non-distributed model
Con Does not work offline
You must be connected to the internet to do anything useful. Although, there is a Git <-> Perforce bridge that sorta solves the problem.
Con Only a web interface or CLI
Fossil's bug tracker only works with the web interface or the command-line interface. There's no native GUI client supporting it.
There are some independent GUI clients out there, but none of them support Fossil's full range of abilities.