Darshan-Ruby is a Ruby extension for parsing and accessing data from Darshan log files. It is maintained by Matthieu Dorier of ENS Cachan Brittany.
HArshaD (Handle Darshan Data) is a suite of simple tools to help users Handle Darshan Data.
CODES is a massively parallel simulation toolkit geared towards the simulation of exascale storage architectures. Included in CODES is a workload generator component that can generate representative I/O workloads from a number of sources, including Darshan logs.