[bench] Benchmark CTxMemPool::check()

src/bench/mempool_stress.cpp

@@ -6,6 +6,7 @@
 #include <policy/policy.h>
 #include <test/util/setup_common.h>
 #include <txmempool.h>
+#include <validation.h>
 
 #include <vector>
 
@@ -98,4 +99,20 @@ static void ComplexMemPool(benchmark::Bench& bench)
     });
 }
 
+static void MempoolCheck(benchmark::Bench& bench)
+{
+    FastRandomContext det_rand{true};
+    const int childTxs = bench.complexityN() > 1 ? static_cast<int>(bench.complexityN()) : 2000;
+    const std::vector<CTransactionRef> ordered_coins = CreateOrderedCoins(det_rand, childTxs, /* min_ancestors */ 5);
+    const auto testing_setup = MakeNoLogFileContext<const TestingSetup>(CBaseChainParams::MAIN, {"-checkmempool=1"});
+    CTxMemPool pool;
+    LOCK2(cs_main, pool.cs);
+    for (auto& tx : ordered_coins) AddTx(tx, pool);
+
+    bench.run([&]() NO_THREAD_SAFETY_ANALYSIS {
+        pool.check(testing_setup.get()->m_node.chainman->ActiveChainstate());
+    });
+}
+
 BENCHMARK(ComplexMemPool);
+BENCHMARK(MempoolCheck);