#LiteStar - Twitter Hashtag

8 months ago

Testing #FastAPI vs #LiteStar with nested empty deps (0-5 levels). Both show smooth perf degradation, unlike LiteStar's flat deps with TaskGroup. Still, 5 deps = 28% drop for LiteStar -- DI overhead is significant even when deps do nothing. #Python

MaximSakhno's tweet photo. Testing #FastAPI vs #LiteStar with nested empty deps (0-5 levels).

Both show smooth perf degradation, unlike LiteStar's flat deps with TaskGroup.

Still, 5 deps = 28% drop for LiteStar -- DI overhead is significant even when deps do nothing.

#Python https://t.co/PGYjVE8Q6n

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Maxim Sakhno @MaximSakhno

8 months ago

Quick perf test: changed #LiteStar dependency resolution from TaskGroup to await. RPS impact? Minimal vs 17% degradation with TaskGroup at 4 deps. Each request does 4 DB calls. TaskGroup overhead matters more than expected. More details in thread 👇 #Python #Backend

MaximSakhno's tweet photo. Quick perf test: changed #LiteStar dependency resolution from TaskGroup to await.

RPS impact? Minimal vs 17% degradation with TaskGroup at 4 deps. Each request does 4 DB calls.

TaskGroup overhead matters more than expected.

More details in thread 👇

#Python #Backend https://t.co/TcUrHQzKfA

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Maxim Sakhno @MaximSakhno

8 months ago

In the previous thread, Litestar's RPS dropped 36% with 2+ flat dependencies due to TaskGroup overhead. 📉 How do #Litestar and #FastAPI perform with real DB queries in dependencies? Let's figure it out in this thread 🧵 #Python

MaximSakhno's tweet photo. In the previous thread, Litestar's RPS dropped 36% with 2+ flat dependencies due to TaskGroup overhead. 📉

How do #Litestar and #FastAPI perform with real DB queries in dependencies? Let's figure it out in this thread 🧵

#Python https://t.co/uTLIcAQT3o

Maxim Sakhno @MaximSakhno

9 months ago

Is #LiteStar faster than #FastAPI? Benchmarks say yes, but look at Dependency Injection. 📉 Adding just 2 flat dependencies significantly degrades the throughput. I dug into the source to find why. Thread: TaskGroups, Kahn's algorithm & performance trade-offs. 🧵

MaximSakhno's tweet photo. Is #LiteStar faster than #FastAPI? Benchmarks say yes, but look at Dependency Injection. 📉

Adding just 2 flat dependencies significantly degrades the throughput. I dug into the source to find why.

Thread: TaskGroups, Kahn's algorithm & performance trade-offs. 🧵 https://t.co/sCKYQP38CF

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Maxim Sakhno @MaximSakhno

9 months ago

Is #LiteStar faster than #FastAPI? Benchmarks say yes, but look at Dependency Injection. 📉 Adding just 2 flat dependencies significantly degrades the throughput. I dug into the source to find why. Thread: TaskGroups, Kahn's algorithm & performance trade-offs. 🧵

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