From d380d2877ed45cf1e75a87d822b30e4e1e21e3d4 Mon Sep 17 00:00:00 2001
From: Martin Leitner-Ankerl <martin.ankerl@gmail.com>
Date: Sun, 26 Mar 2023 15:19:43 +0200
Subject: bench: Add benchmark for prevector usage in std::vector

---
 src/bench/prevector.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'src/bench')

diff --git a/src/bench/prevector.cpp b/src/bench/prevector.cpp
index 59c4af086e..2524e215e4 100644
--- a/src/bench/prevector.cpp
+++ b/src/bench/prevector.cpp
@@ -80,6 +80,30 @@ static void PrevectorDeserialize(benchmark::Bench& bench)
     });
 }
 
+template <typename T>
+static void PrevectorFillVectorDirect(benchmark::Bench& bench)
+{
+    bench.run([&] {
+        std::vector<prevector<28, T>> vec;
+        for (size_t i = 0; i < 260; ++i) {
+            vec.emplace_back();
+        }
+    });
+}
+
+
+template <typename T>
+static void PrevectorFillVectorIndirect(benchmark::Bench& bench)
+{
+    bench.run([&] {
+        std::vector<prevector<28, T>> vec;
+        for (size_t i = 0; i < 260; ++i) {
+            // force allocation
+            vec.emplace_back(29, T{});
+        }
+    });
+}
+
 #define PREVECTOR_TEST(name)                                         \
     static void Prevector##name##Nontrivial(benchmark::Bench& bench) \
     {                                                                \
@@ -96,3 +120,5 @@ PREVECTOR_TEST(Clear)
 PREVECTOR_TEST(Destructor)
 PREVECTOR_TEST(Resize)
 PREVECTOR_TEST(Deserialize)
+PREVECTOR_TEST(FillVectorDirect)
+PREVECTOR_TEST(FillVectorIndirect)
-- 
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