diff --git a/benchmark/parsingcompetition.cpp b/benchmark/parsingcompetition.cpp
new file mode 100644
index 000000000..6771a6b41
--- /dev/null
+++ b/benchmark/parsingcompetition.cpp
@@ -0,0 +1,67 @@
+
+#include "jsonparser.h"
+
+#include "benchmark.h"
+//#include "jsonstruct.h"
+// #define RAPIDJSON_SSE2 // bad
+// #define RAPIDJSON_SSE42 // bad
+#include "rapidjson/document.h"
+#include "rapidjson/reader.h" // you have to check in the submodule
+#include "rapidjson/stringbuffer.h"
+#include "rapidjson/writer.h"
+
+// colorfuldisplay(ParsedJson & pj, const u8 * buf)
+
+using namespace rapidjson;
+using namespace std;
+
+int main(int argc, char *argv[]) {
+  if (argc < 2) {
+    cerr << "Usage: " << argv[0] << " <jsonfile>\n";
+    cerr << "Or " << argv[0] << " -v <jsonfile>\n";
+    exit(1);
+  }
+  bool verbose = false;
+  if (argc > 2) {
+    if (strcmp(argv[1], "-v"))
+      verbose = true;
+  }
+  pair<u8 *, size_t> p = get_corpus(argv[argc - 1]);
+  std::cout << "Input has ";
+  if (p.second > 1024 * 1024)
+    std::cout << p.second / (1024 * 1024) << " MB ";
+  else if (p.second > 1024)
+    std::cout << p.second / 1024 << " KB ";
+  else
+    std::cout << p.second << " B ";
+  std::cout << std::endl;
+
+  ParsedJson *pj_ptr = allocate_ParsedJson(p.second);
+  if (pj_ptr == NULL) {
+    std::cerr << "can't allocate memory" << std::endl;
+    return EXIT_FAILURE;
+  }
+  ParsedJson &pj(*pj_ptr);
+
+  int repeat = 10;
+  int volume = p.second;
+  BEST_TIME(json_parse(p.first, p.second, pj), true, , repeat, volume, true);
+
+  rapidjson::Document d;
+
+  char *buffer = (char *)malloc(p.second + 1);
+  memcpy(buffer, p.first, p.second);
+  buffer[p.second] = '\0';
+
+  BEST_TIME(
+      d.Parse<kParseValidateEncodingFlag>((const char *)buffer).HasParseError(),
+      false, memcpy(buffer, p.first, p.second), repeat, volume, true);
+  BEST_TIME(d.Parse((const char *)buffer).HasParseError(), false,
+            memcpy(buffer, p.first, p.second), repeat, volume, true);
+  BEST_TIME(d.ParseInsitu(buffer).HasParseError(), false,
+            memcpy(buffer, p.first, p.second), repeat, volume, true);
+
+  free(buffer);
+  free(p.first);
+  deallocate_ParsedJson(pj_ptr);
+}