|
| 1 | +use criterion::{Criterion, criterion_group, criterion_main}; |
| 2 | +use ristretto_classfile::ClassFile; |
| 3 | +use ristretto_classloader::runtime::default_class_loader; |
| 4 | +use ristretto_jimage::{Image, Result}; |
| 5 | +use std::io::Cursor; |
| 6 | +use std::sync::Arc; |
| 7 | +use tokio::runtime::Runtime; |
| 8 | + |
| 9 | +fn benchmarks(criterion: &mut Criterion) { |
| 10 | + bench_lifecycle(criterion).ok(); |
| 11 | +} |
| 12 | + |
| 13 | +fn bench_lifecycle(criterion: &mut Criterion) -> Result<()> { |
| 14 | + let runtime = Runtime::new()?; |
| 15 | + let image = runtime.block_on(async { get_image().await })?; |
| 16 | + let image = Arc::new(image); |
| 17 | + |
| 18 | + criterion.bench_function("jimage_load_hash_map", |bencher| { |
| 19 | + bencher.iter(|| { |
| 20 | + runtime.block_on(async { |
| 21 | + let _ = load_class(&image, "/java.base/java/util/HashMap.class") |
| 22 | + .await |
| 23 | + .ok(); |
| 24 | + }); |
| 25 | + }); |
| 26 | + }); |
| 27 | + |
| 28 | + Ok(()) |
| 29 | +} |
| 30 | + |
| 31 | +async fn get_image() -> Result<Image> { |
| 32 | + let (java_home, _java_version, _class_loader) = |
| 33 | + default_class_loader().await.expect("java home"); |
| 34 | + let path = java_home.join("lib").join("modules"); |
| 35 | + let image = Image::from_file(&path)?; |
| 36 | + Ok(image) |
| 37 | +} |
| 38 | + |
| 39 | +async fn load_class(image: &Image, class_name: &str) -> Result<()> { |
| 40 | + let resource = image.get_resource(class_name)?; |
| 41 | + let mut bytes = Cursor::new(resource.data().to_vec()); |
| 42 | + let _class_file = ClassFile::from_bytes(&mut bytes).expect("read classfile"); |
| 43 | + Ok(()) |
| 44 | +} |
| 45 | + |
| 46 | +criterion_group!( |
| 47 | + name = benches; |
| 48 | + config = Criterion::default(); |
| 49 | + targets = benchmarks |
| 50 | +); |
| 51 | +criterion_main!(benches); |
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