blakeblackshear.frigate/frigate/stats.py
Blake Blackshear 624c314335
Fast restart (#5378)
* dont wait so long for queues

* implement stop methods for comms

* set the detection events on exit and return early from processing

* handle the stop event in the broadcast threads

* short circuit the detection process exit code if it already exited

* some logging for stats thread

* just keep the log process alive 1 second after the last log message

* ensure the multiprocessing queues are emptied and closed

* Update frigate/log.py

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* Update frigate/log.py

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* mypy fixes

---------

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>
2023-02-03 20:15:47 -06:00

293 lines
9.2 KiB
Python

import asyncio
import json
import logging
import threading
import time
import psutil
import shutil
import os
import requests
from typing import Optional, Any
from multiprocessing.synchronize import Event as MpEvent
from frigate.comms.dispatcher import Dispatcher
from frigate.config import FrigateConfig
from frigate.const import DRIVER_AMD, DRIVER_ENV_VAR, RECORD_DIR, CLIPS_DIR, CACHE_DIR
from frigate.types import StatsTrackingTypes, CameraMetricsTypes
from frigate.util import get_amd_gpu_stats, get_intel_gpu_stats, get_nvidia_gpu_stats
from frigate.version import VERSION
from frigate.util import get_cpu_stats
from frigate.object_detection import ObjectDetectProcess
logger = logging.getLogger(__name__)
def get_latest_version(config: FrigateConfig) -> str:
if not config.telemetry.version_check:
return "disabled"
try:
request = requests.get(
"https://api.github.com/repos/blakeblackshear/frigate/releases/latest",
timeout=10,
)
except:
return "unknown"
response = request.json()
if request.ok and response and "tag_name" in response:
return str(response.get("tag_name").replace("v", ""))
else:
return "unknown"
def stats_init(
config: FrigateConfig,
camera_metrics: dict[str, CameraMetricsTypes],
detectors: dict[str, ObjectDetectProcess],
) -> StatsTrackingTypes:
stats_tracking: StatsTrackingTypes = {
"camera_metrics": camera_metrics,
"detectors": detectors,
"started": int(time.time()),
"latest_frigate_version": get_latest_version(config),
"last_updated": int(time.time()),
}
return stats_tracking
def get_fs_type(path: str) -> str:
bestMatch = ""
fsType = ""
for part in psutil.disk_partitions(all=True):
if path.startswith(part.mountpoint) and len(bestMatch) < len(part.mountpoint):
fsType = part.fstype
bestMatch = part.mountpoint
return fsType
def read_temperature(path: str) -> Optional[float]:
if os.path.isfile(path):
with open(path) as f:
line = f.readline().strip()
return int(line) / 1000
return None
def get_temperatures() -> dict[str, float]:
temps = {}
# Get temperatures for all attached Corals
base = "/sys/class/apex/"
if os.path.isdir(base):
for apex in os.listdir(base):
temp = read_temperature(os.path.join(base, apex, "temp"))
if temp is not None:
temps[apex] = temp
return temps
def get_processing_stats(
config: FrigateConfig, stats: dict[str, str], hwaccel_errors: list[str]
) -> None:
"""Get stats for cpu / gpu."""
async def run_tasks() -> None:
await asyncio.wait(
[
asyncio.create_task(set_gpu_stats(config, stats, hwaccel_errors)),
asyncio.create_task(set_cpu_stats(stats)),
]
)
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
loop.run_until_complete(run_tasks())
loop.close()
async def set_cpu_stats(all_stats: dict[str, Any]) -> None:
"""Set cpu usage from top."""
cpu_stats = get_cpu_stats()
if cpu_stats:
all_stats["cpu_usages"] = cpu_stats
async def set_gpu_stats(
config: FrigateConfig, all_stats: dict[str, Any], hwaccel_errors: list[str]
) -> None:
"""Parse GPUs from hwaccel args and use for stats."""
hwaccel_args = []
for camera in config.cameras.values():
args = camera.ffmpeg.hwaccel_args
if isinstance(args, list):
args = " ".join(args)
if args and args not in hwaccel_args:
hwaccel_args.append(args)
for stream_input in camera.ffmpeg.inputs:
args = stream_input.hwaccel_args
if isinstance(args, list):
args = " ".join(args)
if args and args not in hwaccel_args:
hwaccel_args.append(args)
stats: dict[str, dict] = {}
for args in hwaccel_args:
if args in hwaccel_errors:
# known erroring args should automatically return as error
stats["error-gpu"] = {"gpu": -1, "mem": -1}
elif "cuvid" in args or "nvidia" in args:
# nvidia GPU
nvidia_usage = get_nvidia_gpu_stats()
if nvidia_usage:
name = nvidia_usage["name"]
del nvidia_usage["name"]
stats[name] = nvidia_usage
else:
stats["nvidia-gpu"] = {"gpu": -1, "mem": -1}
hwaccel_errors.append(args)
elif "qsv" in args:
# intel QSV GPU
intel_usage = get_intel_gpu_stats()
if intel_usage:
stats["intel-qsv"] = intel_usage
else:
stats["intel-qsv"] = {"gpu": -1, "mem": -1}
hwaccel_errors.append(args)
elif "vaapi" in args:
driver = os.environ.get(DRIVER_ENV_VAR)
if driver == DRIVER_AMD:
# AMD VAAPI GPU
amd_usage = get_amd_gpu_stats()
if amd_usage:
stats["amd-vaapi"] = amd_usage
else:
stats["amd-vaapi"] = {"gpu": -1, "mem": -1}
hwaccel_errors.append(args)
else:
# intel VAAPI GPU
intel_usage = get_intel_gpu_stats()
if intel_usage:
stats["intel-vaapi"] = intel_usage
else:
stats["intel-vaapi"] = {"gpu": -1, "mem": -1}
hwaccel_errors.append(args)
elif "v4l2m2m" in args or "rpi" in args:
# RPi v4l2m2m is currently not able to get usage stats
stats["rpi-v4l2m2m"] = {"gpu": -1, "mem": -1}
if stats:
all_stats["gpu_usages"] = stats
def stats_snapshot(
config: FrigateConfig, stats_tracking: StatsTrackingTypes, hwaccel_errors: list[str]
) -> dict[str, Any]:
"""Get a snapshot of the current stats that are being tracked."""
camera_metrics = stats_tracking["camera_metrics"]
stats: dict[str, Any] = {}
total_detection_fps = 0
for name, camera_stats in camera_metrics.items():
total_detection_fps += camera_stats["detection_fps"].value
pid = camera_stats["process"].pid if camera_stats["process"] else None
ffmpeg_pid = (
camera_stats["ffmpeg_pid"].value if camera_stats["ffmpeg_pid"] else None
)
cpid = (
camera_stats["capture_process"].pid
if camera_stats["capture_process"]
else None
)
stats[name] = {
"camera_fps": round(camera_stats["camera_fps"].value, 2),
"process_fps": round(camera_stats["process_fps"].value, 2),
"skipped_fps": round(camera_stats["skipped_fps"].value, 2),
"detection_fps": round(camera_stats["detection_fps"].value, 2),
"detection_enabled": camera_stats["detection_enabled"].value,
"pid": pid,
"capture_pid": cpid,
"ffmpeg_pid": ffmpeg_pid,
}
stats["detectors"] = {}
for name, detector in stats_tracking["detectors"].items():
pid = detector.detect_process.pid if detector.detect_process else None
stats["detectors"][name] = {
"inference_speed": round(detector.avg_inference_speed.value * 1000, 2),
"detection_start": detector.detection_start.value,
"pid": pid,
}
stats["detection_fps"] = round(total_detection_fps, 2)
get_processing_stats(config, stats, hwaccel_errors)
stats["service"] = {
"uptime": (int(time.time()) - stats_tracking["started"]),
"version": VERSION,
"latest_version": stats_tracking["latest_frigate_version"],
"storage": {},
"temperatures": get_temperatures(),
"last_updated": int(time.time()),
}
for path in [RECORD_DIR, CLIPS_DIR, CACHE_DIR, "/dev/shm"]:
try:
storage_stats = shutil.disk_usage(path)
except FileNotFoundError:
stats["service"]["storage"][path] = {}
stats["service"]["storage"][path] = {
"total": round(storage_stats.total / 1000000, 1),
"used": round(storage_stats.used / 1000000, 1),
"free": round(storage_stats.free / 1000000, 1),
"mount_type": get_fs_type(path),
}
return stats
class StatsEmitter(threading.Thread):
def __init__(
self,
config: FrigateConfig,
stats_tracking: StatsTrackingTypes,
dispatcher: Dispatcher,
stop_event: MpEvent,
):
threading.Thread.__init__(self)
self.name = "frigate_stats_emitter"
self.config = config
self.stats_tracking = stats_tracking
self.dispatcher = dispatcher
self.stop_event = stop_event
self.hwaccel_errors: list[str] = []
def run(self) -> None:
time.sleep(10)
while not self.stop_event.wait(self.config.mqtt.stats_interval):
logger.debug("Starting stats collection")
stats = stats_snapshot(
self.config, self.stats_tracking, self.hwaccel_errors
)
self.dispatcher.publish("stats", json.dumps(stats), retain=False)
logger.debug("Finished stats collection")
logger.info(f"Exiting stats emitter...")