osprofiler

import os from osprofiler import profiler # In a production OpenStack environment, HMAC_KEY would be a shared secret. # For local testing, a simple key suffices. HMAC_KEY = os.environ.get('OSPROFILER_HMAC_KEY', 'my-very-secret-key-for-profiling') # Initialize the profiler with a base host, project, and HMAC key. # This is crucial; without initialization, profiling calls are ignored. profiler.init('local-host', 'my-test-project', HMAC_KEY) @profiler.trace('my_outer_operation', info={'type': 'application_logic'}) def perform_complex_task(input_data): print(f"Starting complex task with: {input_data}") # Simulate some work import time time.sleep(0.01) with profiler.Trace('inner_computation', info={'stage': 'data_processing'}): intermediate_result = input_data * 2 time.sleep(0.005) print(f"Intermediate result: {intermediate_result}") return intermediate_result + 10 if profiler.is_active(): final_output = perform_complex_task(5) print(f"Final output: {final_output}") print("Profiler is active and trace points would be generated.") # In a real setup, trace data would be sent to a collector (e.g., Ceilometer) # and retrieved via the `osprofiler` CLI (e.g., `osprofiler trace show <trace_id>`). else: print("Profiler is not active. Check initialization and configuration.")