3 ms·
> Do a quick test with the latest JVM. java: 031s python: 013s it's 3x slower to start up… it means that any bash script with a loop calling a java command wi
by guappa 3y ago
> Do a quick test with the latest JVM.
java: 031s
python: 013s
it's 3x slower to start up… it means that any bash script with a loop calling a java command will run 3x slower.
3x slower isn't my definition of minuscule.
- oblio 3y ago> java: 031s python: 013s I'm confused, what kind of time measurement system is this? Are those 31 seconds versus 13 seconds? 0.31s vs 0.13s? If it's the first case, something is wrong with that machine, Hello World should not take that long. If it's the second, are we talking about 0.18s? See below. > it's 3x slower to start up… it means that any bash script with a loop calling a java command will run 3x slower. I don't know how you write your scripts, but in practice most scripts hang waiting for IO (especially network) or waiting for a specific command to process something... > 3x slower isn't my definition of minuscule. Nope, but based on what you've presented so far, unless I'm misunderstanding, it's my definition of "premature optimization".
- guappa 3y agodouble click selection issue. 0m0,031s vs 0m0,013s. > I don't know how you write your scripts, You know how… I put print hello world in them… that was the test you asked for? > premature optimization Not using something that has 3x startup time, for a short lived command is just "common sense". I'm starting to think that the issue here is that you know java but don't know python or C, and you are unconsciously trying to get water to your own watermill.
- oblio 3y agoI haven't written Java as my day to day for about 5 years. Instead I write... Python :-) It's just that I recognize disingenuous comments. Java is perfectly adequate as a language for writing command line tools. You're likely using one of them weekly and don't even know it. Just don't write your Java CLIs using Spring or DI frameworks in general :-)