Centralized Admisson control server

This project contains the simulator code used in Aequitas. (Paper)

The simulator is based on YAPS.

Build

git clone https://github.com/SymbioticLab/Aequitas.git
cd Aequitas
aclocal
autoconf
automake --add-missing
./configure
make

Notes

• By default Master branch Contains approach - 2
• Quota Server Branch Contains only approach - 1 discussed in the report.
• The below configuration is mostly unchanged, but there are slightly new fields added please check py/conf_temp.txt and accordingly use the required fields

Configuration

Before launching the simulator, you may want to configure a few parameters in the configuration file located in Aequitas/py.

• flow_trace: CDF of RPC sizes used in the experiment
• load: average load
• burst_load: load during burst (should be > 1)
• traffic_pattern: incast or all-to-all
• burst_size: number of RPCs sent within the burst period
• qos_weights: QoS weights starting from the highest QoS, separated by comma. (e.g., 8,4,1) This also implies the number of QoS classes.
• qos_ratio: QoS distribution starting from the highest QoS, separated by comma and should sum up to 100. (e.g., 60,30,10)
• hardcoded_targets: QoS RPC network latency target starting from the highest QoS (excluding the lowest one) (e.g., 15,25)
• priority_downgrade: whether priority downgrade can happen. Must be 1 to have Aequitas admission control.
• normalized_lat: whether latency targets are normalized based on MTU; should be 1 for MTU-based SLOs with mixed-sized RPCs
• flow_type, queue_type, host_type: used to specify different work, including Aequitas and others. See ext/factory.h for more details.

For information on other parameters, please refer to the code or contact the author.

Run

cd py
../simulator 1 [config_file]

Reference

Please consider citing our paper if you find Aequitas related to your research project.

@inproceedings{aequitas-sigcomm22,
  title={Aequitas: Admission Control for Performance-Critical RPCs in Datacenters},
  author={Yiwen Zhang and Gautam Kumar and Nandita Dukkipati and Xian Wu and Priyaranjan Jha and Mosharaf Chowdhury and Amin Vahdat},
  booktitle={SIGCOMM},
  year={2022}
}

Contact

• Wentai Xie(wentaixi@usc.edu)
• Divesh Chowdary(gude@usc.edu)
• Yuzhou Zhong(yzhong47@usc.edu)