> other network services better than the JVM with its hot spot?
JVM hotspot optimization is just band-aid for something Rust does always everywhere naturally? Assuming that you use lifetimes etc properly and not going to Arc rampage.
JVM hotspot optimization is just band-aid for something Rust does always everywhere naturally? Assuming that you use lifetimes etc properly and not going to Arc rampage.
concat/string time: [77.801 ns 78.103 ns 78.430 ns]
change: [+0.0275% +0.3169% +0.6169%] (p = 0.03 < 0.05)
Change within noise threshold.
formatted/string time: [31.471 ns 31.569 ns 31.699 ns]
change: [+0.1277% +0.3915% +0.6788%] (p = 0.01 < 0.05).
Change within noise threshold.
Benchmarks.concat string avgt 15 8.632 ± 0.105 ns/op
Benchmarks.format string avgt 15 64.971 ± 1.406 ns/op
Java:
@Param({"string"})
public String param;
public int i = 0;
@Benchmark
public String concat() {
return "prefix " + param + " " + i++ + " suffix";
}
Benchmark (param) Mode Cnt Score Error Units
Benchmarks.concat string avgt 15 26.591 ± 0.242 ns/op
fn format2(state: &mut BenchState) -> String {
let i = state.next_i();
format!("prefix {} {} suffix", state.param, i)
}
format2 time: [51.923 ns 52.541 ns 53.466 ns]
Found 10 outliers among 100 measurements (10.00%)
4 (4.00%) high mild
6 (6.00%) high severeI guess if you are formatting strings constantly this is important, but you can also use a bump allocator in rust if you really wanted to.