PDQ Version 6.2.0 Released

PDQ (Pretty Damn Quick) is a FOSS performance analysis tool based on the paradigm of queueing models that can be programmed natively in

• R
• Python
• Perl
• C and several other languages.

This minor release is now available for download.

If you're new to PDQ, here's a simple queueing model written R that you can paste directly into an RStudio console or script window:

# A simple M/M/1 queueing model in R-PDQ.

require(pdq)

# input parameters
arrivalRate <- 0.75
serviceRate <- 1.0

## Build and solve the PDQ model
Init("Single queue model")                 # Initialize PDQ
CreateOpen("Work", arrivalRate)            # Create workload
CreateNode("Server", CEN, FCFS)            # Def single server
SetDemand("Server", "Work", 1/serviceRate) # Def service time
Solve(CANON)                               # Solve the model
Report()                                   # Formatted output

Also, check out the relevant books and training classes.