jemalloc-percpu_arena-check.patch

diff --git a/programs/benchmark/Benchmark.cpp b/programs/benchmark/Benchmark.cpp
index 91c43160e0..fed4823369 100644
--- a/programs/benchmark/Benchmark.cpp
+++ b/programs/benchmark/Benchmark.cpp
@@ -521,6 +521,11 @@ int mainEntryClickHouseBenchmark(int argc, char ** argv)
     {
         using boost::program_options::value;
 
+        const char *val = nullptr;
+        size_t size = sizeof(val);
+        assert(!mallctl("opt.percpu_arena", &val, &size, nullptr, 0));
+        std::cerr << "opt.percpu_arena: " << val << '\n';
+
         boost::program_options::options_description desc = createOptionsDescription("Allowed options", getTerminalWidth());
         desc.add_options()
             ("help",                                                            "produce help message")