metrics_app

System, which tracks system and detects, if operating system and hardware is able to run all applications, we need. With this feature compute units can be swapped or system can be updated without worrying about performance and enviroment stability.

Requirements for track app

Following dependencies must be installed on the host system

• Python3
• libelf
• libbpf-dev
  • https://github.com/libbpf/libbpf
  • sudo make install
• llvm-strip
• linux-tools-$(uname -r)
• clang
• cmake

Minimum supported kernel version: 4.1

Kernel config option that must be enabled:

CONFIG_DEBUG_INFO_BTF=y

Requirements for evaluator app

Following dependencies must be installed on the host system

• Python3
• python3-tk
  • sudo apt install python3-tk
• matplotlib for Python3
  • pip3 install -r requirements.txt

Directory structure

• evaluator - directory with evaluator app
• include - header files of track app
• source - source files of track app
• scripts - helper scripts
• scripts/generator - script that generates files needed for compilation

Build track app

mkdir build
cd build
cmake .. -DCMAKE_C_COMPILER=clang
make

Cmake options

PATTERN - pattern where generator search for syscall format file, defaul = tsys_enter_*

DATA_SECTION - build app and catch syscalls with their data, otherwise catch only thir types, default = OFF

Build evaluator library

mkdir build
cd build
cmake ..
make

Run track app

Track:

sudo ./track

If it does not work, try to use this command and then run it again:

sudo patchelf --set-rpath /usr/lib64 track

Run evaluator app

Evaluator:

python3 evaluator.py -i ../build/output.bin --no-data --count --graph --hist

Options

• count - count all syscalls and print
• graph - show diferencial graph
• hist - show histogram
• called - print how many times were all syscalls called
• input - name of the input file, mandatory

One of these two has to be selected:

• data - parses syscalls with their data
• no-data - parses syscalls without their data