| import os, sys | |
| def sample_trace(ifilepath, ofilepath, sample_ratio_inv): | |
| ifile = open(ifilepath, "r") | |
| ofile = open(ofilepath, "w") | |
| for line in ifile: | |
| try: | |
| timestamp, obj_id = line.strip("\n").split(",") | |
| except Exception as e: | |
| print(e, line) | |
| continue | |
| if int(obj_id) % sample_ratio_inv == 0: | |
| ofile.write("{},{},{}\n".format(timestamp, obj_id, 1)) | |
| ifile.close() | |
| ofile.close() | |
| if __name__ == "__main__": | |
| if len(sys.argv) != 4: | |
| print("Usage: python3 sample_trace.py ifilepath ofilepath sample_ratio_inv") | |
| exit(0) | |
| ifilepath = sys.argv[1] | |
| ofilepath = sys.argv[2] | |
| sample_ratio_inv = int(sys.argv[3]) | |
| sample_trace(ifilepath, ofilepath, sample_ratio_inv) | |