ceph/dmclock

Name: dmclock

Owner: Ceph

Description: Code that implements the dmclock distributed quality of service algorithm. See "mClock: Handling Throughput Variability for Hypervisor IO Scheduling" by Gulati, Merchant, and Varman.

Created: 2016-03-01 16:18:09.0

Updated: 2018-05-22 02:52:25.0

Pushed: 2018-05-21 21:31:26.0

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Size: 619

Language: C++

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README

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.

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….