Samples of how you could perform memory tracing.

trace-valgrind.sh

Trace memory using Valgrind.

• -t - The temporary file path. Defaults to ${HOME}/DRAM-Tracing-Samples/temp-trace.log.
• -o - The output trace file path. Defaults to ${HOME}/DRAM-Tracing-Samples/trace-valgrind.stl.
• -s - The target command to be traced. Defaults to /usr/bin/python3 ${HOME}/DRAM-Tracing-Samples/main.py.

trace-pin.sh

Trace memory using Intel Pin.

• -p - The "pin" executable. Defaults to {HOME}/pin/pin.
• -e - The pin tracer program executable. Defaults to ${HOME}/pin/source/tools/SimpleExamples/obj-intel64/pinatrace.so.
• -t - The temporary file path. Defaults to ${HOME}/DRAM-Tracing-Samples/temp-trace.log.
• -o - The output trace file path. Defaults to ${HOME}/DRAM-Tracing-Samples/trace-pin.stl.
• -s - The target command to be traced. Defaults to /usr/bin/python3 ${HOME}/DRAM-Tracing-Samples/main.py.

synthetic.py

Script to generate very basic synthetic data. The synthetic data this produces is very basic and entirely random. You may want to use this as a base and expand it to have more systematic reads and writes at times. For instance, reading and writing to sequential addresses to simulate array reads and writes, rather than entirely random accesses.

• -e or --entries - Number of lines to generate. Defaults to 1000.
• -m or --megabytes - Megabytes to generate up to. Defaults to 4096.
• -r or --read - Percentage of operations which are reads. Defaults to 0.9.
• -o or --output - Output file path. Defaults to synthetic.stl.
• -s or --seed - Random generation seed. Defaults to 42.
• -l or --level - Logging level. Defaults to INFO.

genetic_algorithm.py

A very basic genetic algorithm implementation you could use as a starting point. Note in its current form, you are unlikely to converge to anything! There are too many component options which are not compatible with each other, so it is likely you will go the entire genetic algorithm run without creating a single valid member. This is an area you can try to improve with your own unique ideas and methods.

• -l or --level - Logging level. Defaults to INFO.

Helpers

These files do not need to be called on their own but help the bash scripts or other Python scripts.

common.py

Common data between other Python scripts.

configuration.py

Helper to execute dynamically created configuration files.

trace_valgrind.py

Helps format the results from trace-valgrind.sh.

trace_pin.py

Helps format the results from trace-pin.sh.

main.py

Simple placeholder script which simply prints Hello World! to the console.

Sample Configuration Files

hello-world-1866.json and hello-world-2400.json provide sample bases to run against the captured traces. synthetic-1866.json and synthetic-2400.json are the same but run on synethtic.stl generated by synthetic.py.