15 ms·

They overlap in a small niche that is server side services/microservices. Pluse I’m not sure emulator startup time is a relevant metric. Jitted C# or Java are f

They overlap in a small niche that is server side services/microservices. Pluse I’m not sure emulator startup time is a relevant metric. Jitted C# or Java are faster than AOT in most scenarios other than startup time and initial memory consumption.

sirwhinesalot 3y ago
Startup time is definitely relevant for any kind of user-facing application. I'm sure the JIT versions are actually faster since both languages (specially Java) have features that benefit greatly from it. But if I'm loading a constraint solver into my Python app I don't want it to drag a massive JVM around and take 3 seconds to load up. Same with an emulator, most emulators load up in milliseconds.
zigzag312 3y ago
> Jitted C# or Java are faster than AOT in most scenarios other than startup time and initial memory consumption. Why are is so many people saying this, as it doesn't seem to be true. At lest from what I have seen so far. I know that theoretically jitted can be faster, in in practice it's almost never. From C# benchmarks I have seen, in case jitted is faster than AOT, it's only by minuscule few percent. But when AOT is faster it is often a lot faster. And I am not talking about startup time.
WhereIsTheTruth 3y ago
Startup time is very important Some apps get poorly reviewed due to slow startup time Also 3sec on your dev machine = 10sec on regular machines Don't be like Microsoft, don't pretend 9 seconds is fast startup time :) https://www.youtube.com/watch?v=CT7nnXej2K4 https://www.youtube.com/watch?v=CT7nnXej2K4 "10MinuteMail shared how they used GraalVM and Spring Boot 3 to reduce their startup time from ~30 s down to about 3 ms, and memory usage from 6.6 GB down to 1 GB, with the same throughput and CPU utilization." https://medium.com/graalvm/graalvm-for-jdk-21-is-here-ee01177dd12d https://medium.com/graalvm/graalvm-for-jdk-21-is-here-ee0117...

sirwhinesalot 3y ago

Startup time is definitely relevant for any kind of user-facing application. I'm sure the JIT versions are actually faster since both languages (specially Java) have features that benefit greatly from it. But if I'm loading a constraint solver into my Python app I don't want it to drag a massive JVM around and take 3 seconds to load up. Same with an emulator, most emulators load up in milliseconds.

zigzag312 3y ago

> Jitted C# or Java are faster than AOT in most scenarios other than startup time and initial memory consumption. Why are is so many people saying this, as it doesn't seem to be true. At lest from what I have seen so far. I know that theoretically jitted can be faster, in in practice it's almost never. From C# benchmarks I have seen, in case jitted is faster than AOT, it's only by minuscule few percent. But when AOT is faster it is often a lot faster. And I am not talking about startup time.

WhereIsTheTruth 3y ago

Startup time is very important Some apps get poorly reviewed due to slow startup time Also 3sec on your dev machine = 10sec on regular machines Don't be like Microsoft, don't pretend 9 seconds is fast startup time :) https://www.youtube.com/watch?v=CT7nnXej2K4 https://www.youtube.com/watch?v=CT7nnXej2K4 "10MinuteMail shared how they used GraalVM and Spring Boot 3 to reduce their startup time from ~30 s down to about 3 ms, and memory usage from 6.6 GB down to 1 GB, with the same throughput and CPU utilization." https://medium.com/graalvm/graalvm-for-jdk-21-is-here-ee01177dd12d https://medium.com/graalvm/graalvm-for-jdk-21-is-here-ee0117...