Lilith River
fcdb86ca7f
Measures decode throughput for 1024x1024 gray images at various bit depths (3-24 bit). Requires pre-generated images in /tmp/bench-tiff/ (see stderr instructions for generation).
41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
extern crate criterion;
|
|
extern crate tiff;
|
|
|
|
use criterion::{black_box, Criterion, Throughput};
|
|
use tiff::decoder::Decoder;
|
|
|
|
fn decode_image(data: &[u8]) {
|
|
let image = std::io::Cursor::new(data);
|
|
let mut reader = Decoder::open(black_box(image)).unwrap();
|
|
reader.next_image().unwrap();
|
|
reader.read_image().unwrap();
|
|
}
|
|
|
|
fn main() {
|
|
let mut c = Criterion::default().configure_from_args();
|
|
|
|
// Check if large bench images exist
|
|
let bench_dir = std::path::Path::new("/tmp/bench-tiff");
|
|
if !bench_dir.is_dir() {
|
|
eprintln!("Skipping large image benchmarks: /tmp/bench-tiff/ not found");
|
|
eprintln!("Generate with: cc -O2 -o /tmp/gen_bench_tiff /tmp/gen_bench_tiff.c -ltiff -lm && /tmp/gen_bench_tiff");
|
|
return;
|
|
}
|
|
|
|
let mut group = c.benchmark_group("decode-1024x1024");
|
|
group.sample_size(30);
|
|
|
|
for depth in [3, 5, 7, 8, 10, 12, 14, 16, 24] {
|
|
let path = bench_dir.join(format!("bench-1c-{depth}b.tiff"));
|
|
if !path.exists() {
|
|
continue;
|
|
}
|
|
let data = std::fs::read(&path).unwrap();
|
|
group
|
|
.throughput(Throughput::Bytes(data.len() as u64))
|
|
.bench_function(format!("{depth}b"), |b| b.iter(|| decode_image(&data)));
|
|
}
|
|
|
|
group.finish();
|
|
}
|