Add another bench on strings that works on vectors and basic operation

P-p-H-d · Jun 1, 2024 · 22073a4 · 22073a4
1 parent ffb7699
commit 22073a4
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Showing 3 changed files with 99 additions and 1 deletion.
diff --git a/bench/Makefile b/bench/Makefile
@@ -466,13 +466,17 @@ bench-string-step5:
 
 bench-string-step6:
 	$(CXX) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -I $(MLIB) -DBENCH_CAN_USE_STL -DBENCH_CAN_USE_MSTARLIB bench-string.cpp common.c $(BENCH_DEF) -o bench-string.exe 
-	$(CXX) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -I $(MLIB) -DBENCH_CAN_USE_STL -DBENCH_CAN_USE_MSTARLIB bench-string-2.cpp common.c $(BENCH_DEF) -o bench-string-2.exe 
+	$(CXX) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -I $(MLIB) -DBENCH_CAN_USE_STL -DBENCH_CAN_USE_MSTARLIB bench-string-2.cpp common.c $(BENCH_DEF) -o bench-string-2.exe
+	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -I $(MLIB) -DBENCH_CAN_USE_MSTARLIB bench-string-3-mlib.c -o bench-string-3-mlib.exe
+	$(CXX) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -DBENCH_CAN_USE_STL bench-string-3-stl.cpp -o bench-string-3-stl.exe
 	@./bench-string.exe
 	@./bench-string-2.exe  2000000 0
 	@./bench-string-2.exe  2000000 1
 	@./bench-string-2.exe  2000000 2
 	@./bench-string-2.exe  2000000 4
 	@./bench-string-2.exe  2000000 5
+	@./bench-string-3-mlib.exe
+	@./bench-string-3-stl.exe
 
 bench-string-pgo:
 	$(MAKE) bench-string XCFLAGS="-fprofile-generate=pgo"

diff --git a/bench/bench-string-3-mlib.c b/bench/bench-string-3-mlib.c
@@ -0,0 +1,45 @@
+#include "m-string.h"
+#include "common.h"
+
+void pass1(int n, string_t tab[n])
+{
+  for(int i = 0; i < n; i++)
+    string_init(tab[i]);
+}
+
+void pass2(int n, string_t tab[n])
+{
+  for(int i = 0; i < n; i++)
+    string_set(tab[i], "THIS IS IT");
+}
+
+void pass3(string_t dst, int n, string_t tab[n])
+{
+  for(int i = 0; i < n; i++)
+    string_cat(dst, tab[i]);
+}
+
+void pass4(int n, string_t tab[n])
+{
+  for(int i = 0; i < n; i++)
+    string_clear(tab[i]);
+}
+
+int main(int argc, const char *argv[])
+{
+  int n = argc >= 2 ? atoi(argv[1]): 200000000;
+  unsigned long long t0 = cputime();
+  string_t *tab = (string_t *) malloc (n * sizeof(string_t)), dst;
+  if (!tab) abort();
+  string_init(dst);
+  pass1(n, tab);
+  pass2(n, tab);
+  pass3(dst, n, tab);
+  pass4(n, tab);
+  size_t s = string_size(dst);
+  string_clear(dst);
+  free(tab);
+  unsigned long long t1 = cputime();
+  printf("BENCH STRING 3 / M*LIB: TIME=%llu ms LENGTH=%zu\n", t1-t0, s);
+  exit(0);
+}
diff --git a/bench/bench-string-3-stl.cpp b/bench/bench-string-3-stl.cpp
@@ -0,0 +1,49 @@
+#include <string>
+#include <iostream>
+
+#include "common.h"
+
+using namespace std;
+
+#define INIT(x)        (new (&(x)) string())
+#define CLEAR(x)       ((&(x))->~string())
+
+void pass1(int n, string tab[])
+{
+  for(int i = 0; i < n; i++)
+    INIT(tab[i]);
+}
+
+void pass2(int n, string tab[])
+{
+  for(int i = 0; i < n; i++)
+    tab[i] = "THIS IS IT";
+}
+
+void pass3(string &dst, int n, string tab[])
+{
+  for(int i = 0; i < n; i++)
+    dst += tab[i];
+}
+
+void pass4(int n, string tab[])
+{
+  for(int i = 0; i < n; i++)
+    CLEAR(tab[i]);
+}
+
+int main(int argc, const char *argv[])
+{
+  int n = argc >= 2 ? atoi(argv[1]): 200000000;
+  unsigned long long t0 = cputime();
+  string *tab = (string *) malloc (n * sizeof(string)), dst;
+  if (!tab) abort(); 
+  pass1(n, tab);
+  pass2(n, tab);
+  pass3(dst, n, tab);
+  pass4(n, tab);
+  free(tab);
+  unsigned long long t1 = cputime();
+  cout << "BENCH STRING 3 / STL: TIME=" << t1 - t0 << " ms LENGTH=" << dst.size() << endl;
+  exit(0);
+}