Masonmason
f41d9ae5c8
- Add time-window based FPS calculation using output queue timestamps - Replace misleading "Theoretical FPS" (based on processing time) with real "Pipeline FPS" - Track actual inference output generation rate over 10-second sliding window - Add thread-safe FPS calculation with proper timestamp management - Display realistic FPS values (4-9 FPS) instead of inflated values (90+ FPS) Key improvements: - _record_output_timestamp(): Records when each output is generated - get_current_fps(): Calculates FPS based on actual throughput over time window - Thread-safe implementation with fps_lock for concurrent access - Automatic cleanup of old timestamps outside the time window - Integration with GUI display to show meaningful FPS metrics This provides users with accurate inference throughput measurements that reflect real-world performance, especially important for multi-dongle setups where understanding actual scaling is crucial. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
637 lines
26 KiB
Python
637 lines
26 KiB
Python
from typing import List, Dict, Any, Optional, Callable, Union
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import threading
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import queue
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import time
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import traceback
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from dataclasses import dataclass
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from concurrent.futures import ThreadPoolExecutor
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import numpy as np
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from Multidongle import MultiDongle, PreProcessor, PostProcessor, DataProcessor
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@dataclass
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class StageConfig:
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"""Configuration for a single pipeline stage"""
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stage_id: str
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port_ids: List[int]
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scpu_fw_path: str
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ncpu_fw_path: str
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model_path: str
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upload_fw: bool = False
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max_queue_size: int = 50
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# Inter-stage processing
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input_preprocessor: Optional[PreProcessor] = None # Before this stage
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output_postprocessor: Optional[PostProcessor] = None # After this stage
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# Stage-specific processing
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stage_preprocessor: Optional[PreProcessor] = None # MultiDongle preprocessor
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stage_postprocessor: Optional[PostProcessor] = None # MultiDongle postprocessor
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@dataclass
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class PipelineData:
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"""Data structure flowing through pipeline"""
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data: Any # Main data (image, features, etc.)
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metadata: Dict[str, Any] # Additional info
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stage_results: Dict[str, Any] # Results from each stage
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pipeline_id: str # Unique identifier for this data flow
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timestamp: float
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class PipelineStage:
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"""Single stage in the inference pipeline"""
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def __init__(self, config: StageConfig):
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self.config = config
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self.stage_id = config.stage_id
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# Initialize MultiDongle for this stage
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self.multidongle = MultiDongle(
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port_id=config.port_ids,
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scpu_fw_path=config.scpu_fw_path,
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ncpu_fw_path=config.ncpu_fw_path,
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model_path=config.model_path,
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upload_fw=config.upload_fw,
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auto_detect=config.auto_detect if hasattr(config, 'auto_detect') else False,
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max_queue_size=config.max_queue_size
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)
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# Store preprocessor and postprocessor for later use
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self.stage_preprocessor = config.stage_preprocessor
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self.stage_postprocessor = config.stage_postprocessor
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self.max_queue_size = config.max_queue_size
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# Inter-stage processors
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self.input_preprocessor = config.input_preprocessor
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self.output_postprocessor = config.output_postprocessor
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# Threading for this stage
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self.input_queue = queue.Queue(maxsize=config.max_queue_size)
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self.output_queue = queue.Queue(maxsize=config.max_queue_size)
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self.worker_thread = None
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self.running = False
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self._stop_event = threading.Event()
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# Statistics
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self.processed_count = 0
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self.error_count = 0
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self.processing_times = []
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def initialize(self):
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"""Initialize the stage"""
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print(f"[Stage {self.stage_id}] Initializing...")
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try:
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self.multidongle.initialize()
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self.multidongle.start()
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print(f"[Stage {self.stage_id}] Initialized successfully")
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except Exception as e:
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print(f"[Stage {self.stage_id}] Initialization failed: {e}")
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raise
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def start(self):
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"""Start the stage worker thread"""
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if self.worker_thread and self.worker_thread.is_alive():
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return
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self.running = True
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self._stop_event.clear()
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self.worker_thread = threading.Thread(target=self._worker_loop, daemon=True)
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self.worker_thread.start()
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print(f"[Stage {self.stage_id}] Worker thread started")
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def stop(self):
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"""Stop the stage gracefully"""
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print(f"[Stage {self.stage_id}] Stopping...")
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self.running = False
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self._stop_event.set()
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# Put sentinel to unblock worker
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try:
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self.input_queue.put(None, timeout=1.0)
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except queue.Full:
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pass
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# Wait for worker thread
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if self.worker_thread and self.worker_thread.is_alive():
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self.worker_thread.join(timeout=3.0)
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if self.worker_thread.is_alive():
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print(f"[Stage {self.stage_id}] Warning: Worker thread didn't stop cleanly")
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# Stop MultiDongle
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self.multidongle.stop()
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print(f"[Stage {self.stage_id}] Stopped")
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def _worker_loop(self):
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"""Main worker loop for processing data"""
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print(f"[Stage {self.stage_id}] Worker loop started")
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while self.running and not self._stop_event.is_set():
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try:
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# Get input data
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try:
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pipeline_data = self.input_queue.get(timeout=1.0)
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if pipeline_data is None: # Sentinel value
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continue
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except queue.Empty:
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if self._stop_event.is_set():
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break
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continue
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start_time = time.time()
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# Process data through this stage
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processed_data = self._process_data(pipeline_data)
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# Only count and record timing for actual inference results
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if processed_data and self._has_inference_result(processed_data):
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# Record processing time
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processing_time = time.time() - start_time
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self.processing_times.append(processing_time)
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if len(self.processing_times) > 1000: # Keep only recent times
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self.processing_times = self.processing_times[-500:]
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self.processed_count += 1
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# Put result to output queue
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try:
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self.output_queue.put(processed_data, block=False)
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except queue.Full:
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# Drop oldest and add new
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try:
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self.output_queue.get_nowait()
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self.output_queue.put(processed_data, block=False)
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except queue.Empty:
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pass
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except Exception as e:
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self.error_count += 1
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print(f"[Stage {self.stage_id}] Processing error: {e}")
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traceback.print_exc()
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print(f"[Stage {self.stage_id}] Worker loop stopped")
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def _has_inference_result(self, processed_data) -> bool:
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"""Check if processed_data contains a valid inference result (like standalone code)"""
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if not processed_data:
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return False
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try:
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# Check if it's a PipelineData with stage results
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if hasattr(processed_data, 'stage_results') and processed_data.stage_results:
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stage_result = processed_data.stage_results.get(self.stage_id)
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if stage_result:
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# Check for tuple result (prob, result_str) - like standalone code
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if isinstance(stage_result, tuple) and len(stage_result) == 2:
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prob, result_str = stage_result
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return prob is not None and result_str is not None
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# Check for dict result with actual inference data (not status messages)
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elif isinstance(stage_result, dict):
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# Don't count "Processing" or "async" status as real results
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if stage_result.get("status") in ["processing", "async"]:
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return False
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# Don't count empty results
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if not stage_result or stage_result.get("result") == "Processing":
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return False
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return True
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else:
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return stage_result is not None
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except Exception:
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pass
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return False
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def _process_data(self, pipeline_data: PipelineData) -> PipelineData:
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"""Process data through this stage"""
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try:
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current_data = pipeline_data.data
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# Step 1: Input preprocessing (inter-stage)
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if self.input_preprocessor:
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if isinstance(current_data, np.ndarray):
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current_data = self.input_preprocessor.process(
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current_data,
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self.multidongle.model_input_shape,
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'BGR565' # Default format
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)
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# Step 2: Always preprocess image data for MultiDongle
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processed_data = None
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if isinstance(current_data, np.ndarray) and len(current_data.shape) == 3:
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# Always use MultiDongle's preprocess_frame to ensure correct format
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processed_data = self.multidongle.preprocess_frame(current_data, 'BGR565')
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# Validate processed data
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if processed_data is None:
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raise ValueError("MultiDongle preprocess_frame returned None")
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if not isinstance(processed_data, np.ndarray):
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raise ValueError(f"MultiDongle preprocess_frame returned {type(processed_data)}, expected np.ndarray")
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elif isinstance(current_data, dict) and 'raw_output' in current_data:
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# This is result from previous stage, not suitable for direct inference
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processed_data = current_data
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else:
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processed_data = current_data
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# Step 3: MultiDongle inference
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if isinstance(processed_data, np.ndarray):
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self.multidongle.put_input(processed_data, 'BGR565')
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# Get inference result (non-blocking, async pattern like standalone code)
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result = self.multidongle.get_latest_inference_result()
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# Process result if available - only count actual inference results for FPS
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inference_result = None
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if result is not None:
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if isinstance(result, tuple) and len(result) == 2:
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# Handle tuple results like (probability, result_string)
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prob, result_str = result
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if prob is not None and result_str is not None:
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# Avoid duplicate logging - handled by GUI callback formatting
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# print(f"[Stage {self.stage_id}] ✅ Inference result: prob={prob:.3f}, result={result_str}")
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inference_result = result
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elif isinstance(result, dict) and result: # Non-empty dict
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# Avoid duplicate logging - handled by GUI callback formatting
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# print(f"[Stage {self.stage_id}] ✅ Dict result: {result}")
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inference_result = result
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else:
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inference_result = result
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# If no result, use default (don't spam logs)
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if not inference_result:
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inference_result = {'probability': 0.0, 'result': 'Processing', 'status': 'async'}
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# Step 4: Update pipeline data
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pipeline_data.stage_results[self.stage_id] = inference_result
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pipeline_data.data = inference_result # Pass result as data to next stage
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pipeline_data.metadata[f'{self.stage_id}_timestamp'] = time.time()
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return pipeline_data
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except Exception as e:
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print(f"[Stage {self.stage_id}] Data processing error: {e}")
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# Return data with error info
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pipeline_data.stage_results[self.stage_id] = {
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'error': str(e),
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'probability': 0.0,
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'result': 'Processing Error'
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}
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return pipeline_data
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def put_data(self, data: PipelineData, timeout: float = 1.0) -> bool:
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"""Put data into this stage's input queue"""
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try:
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self.input_queue.put(data, timeout=timeout)
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return True
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except queue.Full:
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return False
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def get_result(self, timeout: float = 0.1) -> Optional[PipelineData]:
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"""Get result from this stage's output queue"""
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try:
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return self.output_queue.get(timeout=timeout)
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except queue.Empty:
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return None
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def get_statistics(self) -> Dict[str, Any]:
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"""Get stage statistics"""
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avg_processing_time = (
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sum(self.processing_times) / len(self.processing_times)
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if self.processing_times else 0.0
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)
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multidongle_stats = self.multidongle.get_statistics()
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return {
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'stage_id': self.stage_id,
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'processed_count': self.processed_count,
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'error_count': self.error_count,
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'avg_processing_time': avg_processing_time,
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'input_queue_size': self.input_queue.qsize(),
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'output_queue_size': self.output_queue.qsize(),
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'multidongle_stats': multidongle_stats
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}
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class InferencePipeline:
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"""Multi-stage inference pipeline"""
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def __init__(self, stage_configs: List[StageConfig],
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final_postprocessor: Optional[PostProcessor] = None,
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pipeline_name: str = "InferencePipeline"):
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"""
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Initialize inference pipeline
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:param stage_configs: List of stage configurations
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:param final_postprocessor: Final postprocessor after all stages
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:param pipeline_name: Name for this pipeline instance
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"""
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self.pipeline_name = pipeline_name
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self.stage_configs = stage_configs
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self.final_postprocessor = final_postprocessor
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# Create stages
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self.stages: List[PipelineStage] = []
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for config in stage_configs:
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stage = PipelineStage(config)
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self.stages.append(stage)
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# Pipeline coordinator
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self.coordinator_thread = None
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self.running = False
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self._stop_event = threading.Event()
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# Input/Output queues for the entire pipeline
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self.pipeline_input_queue = queue.Queue(maxsize=100)
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self.pipeline_output_queue = queue.Queue(maxsize=100)
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# Callbacks
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self.result_callback = None
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self.error_callback = None
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self.stats_callback = None
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# Statistics
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self.pipeline_counter = 0
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self.completed_counter = 0
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self.error_counter = 0
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# FPS calculation based on output queue throughput
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self.fps_window_size = 10.0 # 10 second window
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self.output_timestamps = [] # Track when outputs are generated
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self.fps_lock = threading.Lock() # Thread safety for FPS calculation
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def initialize(self):
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"""Initialize all stages"""
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print(f"[{self.pipeline_name}] Initializing pipeline with {len(self.stages)} stages...")
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for i, stage in enumerate(self.stages):
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try:
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stage.initialize()
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print(f"[{self.pipeline_name}] Stage {i+1}/{len(self.stages)} initialized")
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except Exception as e:
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print(f"[{self.pipeline_name}] Failed to initialize stage {stage.stage_id}: {e}")
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# Cleanup already initialized stages
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for j in range(i):
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self.stages[j].stop()
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raise
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print(f"[{self.pipeline_name}] All stages initialized successfully")
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def _record_output_timestamp(self):
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"""Record timestamp when output is generated for FPS calculation"""
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with self.fps_lock:
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current_time = time.time()
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self.output_timestamps.append(current_time)
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# Remove timestamps older than window
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cutoff_time = current_time - self.fps_window_size
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self.output_timestamps = [t for t in self.output_timestamps if t > cutoff_time]
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def get_current_fps(self) -> float:
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"""Calculate current FPS based on output queue throughput"""
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with self.fps_lock:
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if len(self.output_timestamps) < 2:
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return 0.0
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current_time = time.time()
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# Clean old timestamps
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cutoff_time = current_time - self.fps_window_size
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valid_timestamps = [t for t in self.output_timestamps if t > cutoff_time]
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if len(valid_timestamps) < 2:
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return 0.0
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# Calculate FPS over the time window
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time_span = valid_timestamps[-1] - valid_timestamps[0]
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if time_span > 0:
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return (len(valid_timestamps) - 1) / time_span
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return 0.0
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def start(self):
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"""Start the pipeline"""
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# Clear previous FPS data when starting
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with self.fps_lock:
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self.output_timestamps.clear()
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print(f"[{self.pipeline_name}] Starting pipeline...")
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# Start all stages
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for stage in self.stages:
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stage.start()
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# Start coordinator
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self.running = True
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self._stop_event.clear()
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self.coordinator_thread = threading.Thread(target=self._coordinator_loop, daemon=True)
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self.coordinator_thread.start()
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print(f"[{self.pipeline_name}] Pipeline started successfully")
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def stop(self):
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"""Stop the pipeline gracefully"""
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print(f"[{self.pipeline_name}] Stopping pipeline...")
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self.running = False
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self._stop_event.set()
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# Stop coordinator
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if self.coordinator_thread and self.coordinator_thread.is_alive():
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try:
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self.pipeline_input_queue.put(None, timeout=1.0)
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except queue.Full:
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pass
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self.coordinator_thread.join(timeout=3.0)
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# Stop all stages
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for stage in self.stages:
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stage.stop()
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print(f"[{self.pipeline_name}] Pipeline stopped")
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def _coordinator_loop(self):
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"""Coordinate data flow between stages"""
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print(f"[{self.pipeline_name}] Coordinator started")
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while self.running and not self._stop_event.is_set():
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try:
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# Get input data
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try:
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input_data = self.pipeline_input_queue.get(timeout=0.1)
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if input_data is None: # Sentinel
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continue
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except queue.Empty:
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continue
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# Create pipeline data
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pipeline_data = PipelineData(
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data=input_data,
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metadata={'start_timestamp': time.time()},
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stage_results={},
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pipeline_id=f"pipeline_{self.pipeline_counter}",
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timestamp=time.time()
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)
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self.pipeline_counter += 1
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# Process through each stage
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current_data = pipeline_data
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success = True
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for i, stage in enumerate(self.stages):
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# Send data to stage
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if not stage.put_data(current_data, timeout=1.0):
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print(f"[{self.pipeline_name}] Stage {stage.stage_id} input queue full, dropping data")
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success = False
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break
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# Get result from stage
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result_data = None
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timeout_start = time.time()
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while time.time() - timeout_start < 10.0: # 10 second timeout per stage
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result_data = stage.get_result(timeout=0.1)
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if result_data:
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break
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if self._stop_event.is_set():
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break
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time.sleep(0.01)
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if not result_data:
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print(f"[{self.pipeline_name}] Stage {stage.stage_id} timeout")
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success = False
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break
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current_data = result_data
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# Final postprocessing
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if success and self.final_postprocessor:
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try:
|
|
if isinstance(current_data.data, dict) and 'raw_output' in current_data.data:
|
|
final_result = self.final_postprocessor.process(current_data.data['raw_output'])
|
|
current_data.stage_results['final'] = final_result
|
|
current_data.data = final_result
|
|
except Exception as e:
|
|
print(f"[{self.pipeline_name}] Final postprocessing error: {e}")
|
|
|
|
# Output result
|
|
if success:
|
|
current_data.metadata['end_timestamp'] = time.time()
|
|
current_data.metadata['total_processing_time'] = (
|
|
current_data.metadata['end_timestamp'] -
|
|
current_data.metadata['start_timestamp']
|
|
)
|
|
|
|
try:
|
|
self.pipeline_output_queue.put(current_data, block=False)
|
|
self.completed_counter += 1
|
|
|
|
# Record output timestamp for FPS calculation
|
|
self._record_output_timestamp()
|
|
|
|
# Call result callback
|
|
if self.result_callback:
|
|
self.result_callback(current_data)
|
|
|
|
except queue.Full:
|
|
# Drop oldest and add new
|
|
try:
|
|
self.pipeline_output_queue.get_nowait()
|
|
self.pipeline_output_queue.put(current_data, block=False)
|
|
# Record output timestamp even when queue was full
|
|
self._record_output_timestamp()
|
|
except queue.Empty:
|
|
pass
|
|
else:
|
|
self.error_counter += 1
|
|
if self.error_callback:
|
|
self.error_callback(current_data)
|
|
|
|
except Exception as e:
|
|
print(f"[{self.pipeline_name}] Coordinator error: {e}")
|
|
traceback.print_exc()
|
|
self.error_counter += 1
|
|
|
|
print(f"[{self.pipeline_name}] Coordinator stopped")
|
|
|
|
def put_data(self, data: Any, timeout: float = 1.0) -> bool:
|
|
"""Put data into pipeline"""
|
|
try:
|
|
self.pipeline_input_queue.put(data, timeout=timeout)
|
|
return True
|
|
except queue.Full:
|
|
return False
|
|
|
|
def get_result(self, timeout: float = 0.1) -> Optional[PipelineData]:
|
|
"""Get result from pipeline"""
|
|
try:
|
|
return self.pipeline_output_queue.get(timeout=timeout)
|
|
except queue.Empty:
|
|
return None
|
|
|
|
def set_result_callback(self, callback: Callable[[PipelineData], None]):
|
|
"""Set callback for successful results"""
|
|
self.result_callback = callback
|
|
|
|
def set_error_callback(self, callback: Callable[[PipelineData], None]):
|
|
"""Set callback for errors"""
|
|
self.error_callback = callback
|
|
|
|
def set_stats_callback(self, callback: Callable[[Dict[str, Any]], None]):
|
|
"""Set callback for statistics"""
|
|
self.stats_callback = callback
|
|
|
|
def get_pipeline_statistics(self) -> Dict[str, Any]:
|
|
"""Get comprehensive pipeline statistics"""
|
|
stage_stats = []
|
|
for stage in self.stages:
|
|
stage_stats.append(stage.get_statistics())
|
|
|
|
return {
|
|
'pipeline_name': self.pipeline_name,
|
|
'total_stages': len(self.stages),
|
|
'pipeline_input_submitted': self.pipeline_counter,
|
|
'pipeline_completed': self.completed_counter,
|
|
'pipeline_errors': self.error_counter,
|
|
'pipeline_input_queue_size': self.pipeline_input_queue.qsize(),
|
|
'pipeline_output_queue_size': self.pipeline_output_queue.qsize(),
|
|
'current_fps': self.get_current_fps(), # Add real-time FPS
|
|
'stage_statistics': stage_stats
|
|
}
|
|
|
|
def start_stats_reporting(self, interval: float = 5.0):
|
|
"""Start periodic statistics reporting"""
|
|
def stats_loop():
|
|
while self.running:
|
|
if self.stats_callback:
|
|
stats = self.get_pipeline_statistics()
|
|
self.stats_callback(stats)
|
|
time.sleep(interval)
|
|
|
|
stats_thread = threading.Thread(target=stats_loop, daemon=True)
|
|
stats_thread.start()
|
|
|
|
# Utility functions for common inter-stage processing
|
|
def create_feature_extractor_preprocessor() -> PreProcessor:
|
|
"""Create preprocessor for feature extraction stage"""
|
|
def extract_features(frame, target_size):
|
|
# Example: extract edges, keypoints, etc.
|
|
import cv2
|
|
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
|
|
edges = cv2.Canny(gray, 50, 150)
|
|
return cv2.resize(edges, target_size)
|
|
|
|
return PreProcessor(resize_fn=extract_features)
|
|
|
|
def create_result_aggregator_postprocessor() -> PostProcessor:
|
|
"""Create postprocessor for aggregating multiple stage results"""
|
|
def aggregate_results(raw_output, **kwargs):
|
|
# Example: combine results from multiple stages
|
|
if isinstance(raw_output, dict):
|
|
# If raw_output is already processed results
|
|
return raw_output
|
|
|
|
# Standard processing
|
|
if raw_output.size > 0:
|
|
probability = float(raw_output[0])
|
|
return {
|
|
'aggregated_probability': probability,
|
|
'confidence': 'High' if probability > 0.8 else 'Medium' if probability > 0.5 else 'Low',
|
|
'result': 'Detected' if probability > 0.5 else 'Not Detected'
|
|
}
|
|
return {'aggregated_probability': 0.0, 'confidence': 'Low', 'result': 'Not Detected'}
|
|
|
|
return PostProcessor(process_fn=aggregate_results) |