dmclock
This repository contains C++ 11 code that implements the dmclock distributed quality of service algorithm. See mClock: Handling Throughput Variability for Hypervisor IO Scheduling by Gulati, Merchant, and Varman for a description of the algorithm.
Bugs and features
There is a dmclock project through which bugs can be reported and features requested.
Running cmake
When running cmake, set the build type with either:
-DCMAKE_BUILD_TYPE=Debug
-DCMAKE_BUILD_TYPE=Release
To turn on profiling, run cmake with an additional:
-DPROFILE=yes
Running make
Building the dmclock library
The make command builds a library libdmclock.a. That plus the header
files in the src directory allow one to use the implementation in
their code.
Building unit tests
The make dmclock-tests command builds unit tests.
Building simulations
The make dmclock-sims command builds two simulations -- dmc_sim
and ssched_sim -- which incorporate, respectively, the dmclock
priority queue or a very simple scheduler for comparison. Other
priority queue implementations could be added in the future.
dmclock API
To be written....