d0ab3c8d15
Switch tvix to using jemalloc as the default global allocator on
supported (eg, non-msvc) platforms. This gives a pretty reasonable
performance boost basically for free:
int time: [24.361 µs 24.386 µs 24.418 µs]
change: [-19.355% -18.859% -18.527%] (p = 0.00 < 0.05)
Performance has improved.
merge small attrs time: [37.201 µs 37.328 µs 37.442 µs]
change: [-24.609% -24.266% -23.982%] (p = 0.00 < 0.05)
Performance has improved.
merge large attrs with small attrs
time: [20.030 ms 20.135 ms 20.251 ms]
change: [-4.2811% -3.2549% -2.3807%] (p = 0.00 < 0.05)
Performance has improved.
hello outpath time: [967.91 ms 974.07 ms 983.33 ms]
change: [-5.5008% -4.4552% -3.4099%] (p = 0.00 < 0.05)
Performance has improved.
Change-Id: I6c6e6e3295ec2fca01ea28dc37bcb201cd811767
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10851
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: flokli <flokli@flokli.de>
42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
use criterion::{black_box, criterion_group, criterion_main, Criterion};
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use itertools::Itertools;
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#[cfg(not(target_env = "msvc"))]
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use tikv_jemallocator::Jemalloc;
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#[cfg(not(target_env = "msvc"))]
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#[global_allocator]
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static GLOBAL: Jemalloc = Jemalloc;
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fn interpret(code: &str) {
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tvix_eval::Evaluation::new_pure().evaluate(code, None);
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}
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fn eval_literals(c: &mut Criterion) {
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c.bench_function("int", |b| {
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b.iter(|| {
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interpret(black_box("42"));
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})
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});
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}
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fn eval_merge_attrs(c: &mut Criterion) {
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c.bench_function("merge small attrs", |b| {
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b.iter(|| {
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interpret(black_box("{ a = 1; b = 2; } // { c = 3; }"));
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})
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});
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c.bench_function("merge large attrs with small attrs", |b| {
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let large_attrs = format!(
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"{{{}}}",
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(0..10000).map(|n| format!("a{n} = {n};")).join(" ")
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);
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let expr = format!("{large_attrs} // {{ c = 3; }}");
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b.iter(move || {
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interpret(black_box(&expr));
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})
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});
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}
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criterion_group!(benches, eval_literals, eval_merge_attrs);
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criterion_main!(benches);
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