pitrou commented on code in PR #44073:
URL: https://github.com/apache/arrow/pull/44073#discussion_r1755124006
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cpp/src/parquet/arrow/reader_writer_benchmark.cc:
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@@ -369,6 +394,45 @@ BENCHMARK_TEMPLATE2(BM_ReadColumn, true, BooleanType)
->Args({kAlternatingOrNa, 1})
->Args({5, 10});
+//
+// Benchmark reading a PLAIN-encoded primitive column
+//
+
+template <bool nullable, typename ParquetType>
+static void BM_ReadColumnPlain(::benchmark::State& state) {
+ using c_type = typename ArrowType<ParquetType>::c_type;
+
+ const std::vector<c_type> values(BENCHMARK_SIZE, static_cast<c_type>(42));
+ std::shared_ptr<::arrow::Table> table =
+ TableFromVector<ParquetType>(values, /*nullable=*/nullable,
state.range(0));
+
+ auto properties = WriterProperties::Builder().disable_dictionary()->build();
+ BenchmarkReadTable(state, *table, properties, table->num_rows(),
+ sizeof(c_type) * table->num_rows());
+}
+
+BENCHMARK_TEMPLATE2(BM_ReadColumnPlain, false, Int32Type)
Review Comment:
Yes, and because the other benchmarks are dict-encoded.
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