mkleen commented on code in PR #8988:
URL: https://github.com/apache/arrow-rs/pull/8988#discussion_r2621093631


##########
arrow/benches/zip_kernels.rs:
##########
@@ -224,6 +223,74 @@ fn bench_zip_input_on_all_masks(
     }
 }
 
+fn bench_zip_on_string_view_scalar(c: &mut Criterion, input_generator: 
&GenerateStringView) {
+    bench_zip_on_string_view_scalars(c, input_generator, input_generator);
+}
+
+fn bench_zip_on_string_view_scalars(
+    c: &mut Criterion,
+    input_generator_1: &GenerateStringView,
+    input_generator_2: &GenerateStringView,
+) {
+    let mut group = c.benchmark_group(
+        format!(
+            "zip_{ARRAY_LEN}_from_{} and {}",
+            input_generator_1.name(),
+            input_generator_2.name()
+        )
+        .as_str(),
+    );
+
+    let null_scalar = input_generator_1.generate_null();
+
+    let non_null_scalar_1 = input_generator_1.generate();

Review Comment:
   Ok, the generator returns now scalars instead of arrays directly. Regarding 
the combinations: I still think they are valid. The optimisation is based on 
scalar vs scalar values.



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