Недавно делал быстрый прототип асинхронного приложения в котором требовалось вызывать много синхронного кода. Да, я знаю, что это не лучший дизайн, но нужно было быстрое решение на один процесс и без очередей. Поэтому я выполнял код в потоках.
Выглядело это примерно так:
from fastapi.concurrency import run_in_threadpool
async def execute(data: DataRequest) -> DataResponse:
try:
result = await run_in_threadpool(sync_function, data)
return DataResponse(data=result)
except Exception as e:
return DataResponse(
error=str(e),
success=False,
)
В общем работает нормально. Для всех вызовов под капотом используется общий тредпул, всё работает предсказуемо.
Но потребовалось изменить количество запускаемых в пуле потоков (по умолчанию создается 40 воркеров).
Так как дело происходит с FastAPI, делается это через lifespan используя настройки anyio:
import anyio
@asynccontextmanager
async def lifespan(app: FastAPI):
limiter = anyio.to_thread.current_default_thread_limiter()
limiter.total_tokens = 100
yield
# если вдруг нужно вернуть обратно
limiter.total_tokens = 40
Зачем менять количество воркеров?
- уменьшить, если оперативки мало (один тред занимает ~8мб)
- увеличить чтобы выдержать нагрузку
Если есть предложения получше при тех же вводных - предлагайте😉
#async
PeerTube Mobile App v1 Is Out | Linuxiac
The PeerTube mobile app has reached version 1, allowing users to easily edit playlists, comment on videos, and switch between accounts
Sortie de la v1 de l'application mobile ! | JoinPeerTube
PeerTube | F-Droid - Free and Open Source Android App Repository
Go to the git page to get version 1.0 the F-Droid link is 0.6
https://framagit.org/framasoft/peertube/mobile-application/-/releases
Via @linuxgram
#PeerTube
P2Play - Peertube client (Unofficial client for Peertube)
P2Play is an Android application for Peertube. The features are as follows:
- Show list of recent, popular and local videos.
- Play videos (very simple)
- Log in and register in your instance
- Refresh
View downloaded videos
- Subscribe to accounts
- View videos from your subscriptions
- Rate videos
https://f-droid.org/packages/org.libre.agosto.p2play/
https://instances.joinpeertube.org/instances
#PeerTube
PeerTube v7.2.0
=> https://joinpeertube.org/
PeerTube is a free, decentralized and federated video platform developed as an alternative to other platforms that centralize our data and attention, such as YouTube, Dailymotion or Vimeo. 🎬
Changelog:
=> https://github.com/Chocobozzz/PeerTube/releases/tag/v7.2.0
Via @dcntr
#PeerTube#ActivityPub
PeerTube 7.1 brings Podcast 2.0 support, enhanced identification and Mastodon verification | AlternativeTo
PeerTubePeerTube has launched version 7.1 of its open-source, decentralized video-sharing platform, introducing a range of new features and improvements. A key update is enhanced platform identification, which now highlights the hosting platform's address for each video. Users can click on this address to learn more about the video's origin and explore all videos hosted on the remote instance.
Version 7.1 also advances its support for #Podcast 2.0, enabling users to subscribe to channels and play video audio streams through traditional podcast applications like #AntennaPod and #Podverse. Additionally, the podcast feed is now compatible with Apple Podcast, broadening accessibility
PeerTube v7.1 is out! | JoinPeerTube
https://joinpeertube.org/news/release-7.1
#PeerTube
#java#4k#android#bandcamp#download_videos#newpipe#peertube#soundcloud#translation#video#watch#youtube_video
NewPipe is a free, open-source Android app for ad-free streaming and downloading videos/audio from YouTube, SoundCloud, PeerTube and more, with background play, pop-up mode, subscriptions without accounts, and no Google tracking for full privacy. The team is rewriting the code for a modern, stable version—download nightly builds to try new features early. This benefits you by saving data/battery, enabling offline/multitasking use, and protecting your data on any device.
https://github.com/TeamNewPipe/NewPipe