mapleFU commented on code in PR #36298:
URL: https://github.com/apache/arrow/pull/36298#discussion_r1242299592


##########
cpp/src/parquet/encoding_benchmark.cc:
##########
@@ -102,6 +102,18 @@ static void BM_PlainEncodingInt64(benchmark::State& state) 
{
 
 BENCHMARK(BM_PlainEncodingInt64)->Range(MIN_RANGE, MAX_RANGE);
 
+static void BM_DictEncodingInt64(benchmark::State& state) {
+  std::vector<int64_t> values(state.range(0), 64);

Review Comment:
   I can retry to list more num-distinct-value and testing it here.



##########
cpp/src/parquet/encoding_benchmark.cc:
##########
@@ -102,6 +102,18 @@ static void BM_PlainEncodingInt64(benchmark::State& state) 
{
 
 BENCHMARK(BM_PlainEncodingInt64)->Range(MIN_RANGE, MAX_RANGE);
 
+static void BM_DictEncodingInt64(benchmark::State& state) {
+  std::vector<int64_t> values(state.range(0), 64);

Review Comment:
   I can try to list more num-distinct-value and testing it here.



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