User Level Scheduler

User level task scheduler using coorperative ULE scheduler

Requirements

• Linux machine with kernel version >= 5.4
• Install g++. Refer link
• Install liburing by running following commands outside the project root directory.

git clone https://github.com/axboe/liburing.git
make -C ./liburing

To compile

Install g++. Refer link

Run command

g++ -std=c++2a -pthread main.cc -I../liburing/src/include/ -L../liburing/src/ -luring

To run

Run command

./a.out

To enable metric collections

Compile with the corresponding commands.

Runtime metrics

g++ -std=c++2a -pthread main.cc -I../liburing/src/include/ -L../liburing/src/ -luring -DENABLE_METRICS

Interactivity penalty metrics

g++ -std=c++2a -pthread main.cc -I../liburing/src/include/ -L../liburing/src/ -luring -DENABLE_INTERACTIVITY_METRICS

Load balancing metrics

g++ -std=c++2a -pthread main.cc -I../liburing/src/include/ -L../liburing/src/ -luring -DENABLE_LOAD_BALANCE_METRICS

Thread migration count metrics

g++ -std=c++2a -pthread main.cc -I../liburing/src/include/ -L../liburing/src/ -luring -DENABLE_THREAD_MIGRATION_METRICS

To run multi-threaded model (pread/pwrite)

Compile with command

g++ -std=c++2a -pthread multi-threaded.cc -I../liburing/src/include/ -L../liburing/src/ -luring

To run multi-threaded model (io_uring)

Compile with command

g++ -std=c++2a -pthread multi-threaded-iouring.cc -I../liburing/src/include/ -L../liburing/src/ -luring

To run node.js model

Run using command

node node_scheduler.js