[Quy Anh] «Elliot» Nguyen
64 lines
1.5 KiB
Python
64 lines
1.5 KiB
Python
from pathlib import Path
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import re
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LOG_DIR = Path('measurements/memory/x86')
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CPU_FREQ_GHZ = 2.0
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def parse_sysbench_log(file_path):
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"""Parses a single sysbench log file to extract memory bandwidth in MiB/s."""
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try:
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with open(file_path, 'r') as f:
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content = f.read()
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match = re.search(r'(\d+\.?\d*)\s+MiB/sec', content)
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if match:
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return float(match.group(1))
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else:
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print(f"Warning: Could not find 'MiB/sec' in {file_path.name}")
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return None
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except Exception as e:
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print(f'Error reading {file_path}: {e}')
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return None
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def main():
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if not LOG_DIR.exists():
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print(f"Error: Directory '{LOG_DIR}' not found.")
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return
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bandwidths_mib_s = []
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log_files = sorted(LOG_DIR.glob('*.log'))
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print(f'Found {len(log_files)} log files.')
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for file_path in log_files:
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val = parse_sysbench_log(file_path)
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if val is not None:
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bandwidths_mib_s.append(val)
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if not bandwidths_mib_s:
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print('No valid bandwidth data found.')
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return
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avg_mi_b_s = sum(bandwidths_mib_s) / len(bandwidths_mib_s)
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bytes_per_second = avg_mi_b_s * (1024**2)
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cycles_per_second = CPU_FREQ_GHZ * 1e9
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bytes_per_cycle = bytes_per_second / cycles_per_second
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print('-' * 40)
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print(f'Files analyzed: {len(bandwidths_mib_s)}')
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print(f'Average Bandwidth: {avg_mi_b_s:.2f} MiB/sec')
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print(f'CPU Frequency: {CPU_FREQ_GHZ} GHz')
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print('-' * 40)
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print(f'Result: {bytes_per_cycle:.2f} bytes/cycle')
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print('-' * 40)
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if __name__ == '__main__':
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main()
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