Rich-T-kid commented on code in PR #10447:
URL: https://github.com/apache/arrow-rs/pull/10447#discussion_r3666330792
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arrow-ipc/benches/ipc_writer.rs:
##########
@@ -60,6 +64,36 @@ fn criterion_benchmark(c: &mut Criterion) {
})
});
+ group.bench_function("StreamEncoder/encode_10", |b| {
+ let batch = create_batch(8192, true);
+ b.iter(move || {
+ let mut encoder =
StreamEncoder::try_new(batch.schema().as_ref()).unwrap();
+ let mut encoded_len = 0;
+ for _ in 0..10 {
+ encoded_len +=
encoded_buffers_len(encoder.encode(&batch).unwrap());
+ }
+ encoded_len += encoded_buffers_len(encoder.finish().unwrap());
+ black_box(encoded_len);
+ })
+ });
+
+ group.bench_function("StreamEncoder/encode_10/zstd", |b| {
+ let batch = create_batch(8192, true);
+ b.iter(move || {
+ let options = IpcWriteOptions::default()
+ .try_with_compression(Some(CompressionType::ZSTD))
+ .unwrap();
+ let mut encoder =
+ StreamEncoder::try_new_with_options(batch.schema().as_ref(),
options).unwrap();
+ let mut encoded_len = 0;
+ for _ in 0..10 {
+ encoded_len +=
encoded_buffers_len(encoder.encode(&batch).unwrap());
+ }
+ encoded_len += encoded_buffers_len(encoder.finish().unwrap());
+ black_box(encoded_len);
Review Comment:
wouldn't we want to call `black_box()` on `encoder.encode()`? why are we
calling it on the final computed length?
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