1 //===-- tsan_bench.cc -----------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of ThreadSanitizer (TSan), a race detector.
11 //
12 //===----------------------------------------------------------------------===//
13 #include "tsan_test_util.h"
14 #include "tsan_interface.h"
15 #include "tsan_defs.h"
16 #include "gtest/gtest.h"
17 #include <stdint.h>
18
19 const int kSize = 128;
20 const int kRepeat = 2*1024*1024;
21
noinstr(void * p)22 void noinstr(void *p) {}
23
24 template<typename T, void(*__tsan_mop)(void *p)>
Benchmark()25 static void Benchmark() {
26 volatile T data[kSize];
27 for (int i = 0; i < kRepeat; i++) {
28 for (int j = 0; j < kSize; j++) {
29 __tsan_mop((void*)&data[j]);
30 data[j]++;
31 }
32 }
33 }
34
TEST(DISABLED_BENCH,Mop1)35 TEST(DISABLED_BENCH, Mop1) {
36 Benchmark<uint8_t, noinstr>();
37 }
38
TEST(DISABLED_BENCH,Mop1Read)39 TEST(DISABLED_BENCH, Mop1Read) {
40 Benchmark<uint8_t, __tsan_read1>();
41 }
42
TEST(DISABLED_BENCH,Mop1Write)43 TEST(DISABLED_BENCH, Mop1Write) {
44 Benchmark<uint8_t, __tsan_write1>();
45 }
46
TEST(DISABLED_BENCH,Mop2)47 TEST(DISABLED_BENCH, Mop2) {
48 Benchmark<uint16_t, noinstr>();
49 }
50
TEST(DISABLED_BENCH,Mop2Read)51 TEST(DISABLED_BENCH, Mop2Read) {
52 Benchmark<uint16_t, __tsan_read2>();
53 }
54
TEST(DISABLED_BENCH,Mop2Write)55 TEST(DISABLED_BENCH, Mop2Write) {
56 Benchmark<uint16_t, __tsan_write2>();
57 }
58
TEST(DISABLED_BENCH,Mop4)59 TEST(DISABLED_BENCH, Mop4) {
60 Benchmark<uint32_t, noinstr>();
61 }
62
TEST(DISABLED_BENCH,Mop4Read)63 TEST(DISABLED_BENCH, Mop4Read) {
64 Benchmark<uint32_t, __tsan_read4>();
65 }
66
TEST(DISABLED_BENCH,Mop4Write)67 TEST(DISABLED_BENCH, Mop4Write) {
68 Benchmark<uint32_t, __tsan_write4>();
69 }
70
TEST(DISABLED_BENCH,Mop8)71 TEST(DISABLED_BENCH, Mop8) {
72 Benchmark<uint8_t, noinstr>();
73 }
74
TEST(DISABLED_BENCH,Mop8Read)75 TEST(DISABLED_BENCH, Mop8Read) {
76 Benchmark<uint64_t, __tsan_read8>();
77 }
78
TEST(DISABLED_BENCH,Mop8Write)79 TEST(DISABLED_BENCH, Mop8Write) {
80 Benchmark<uint64_t, __tsan_write8>();
81 }
82
TEST(DISABLED_BENCH,FuncCall)83 TEST(DISABLED_BENCH, FuncCall) {
84 for (int i = 0; i < kRepeat; i++) {
85 for (int j = 0; j < kSize; j++)
86 __tsan_func_entry((void*)(uintptr_t)j);
87 for (int j = 0; j < kSize; j++)
88 __tsan_func_exit();
89 }
90 }
91
TEST(DISABLED_BENCH,MutexLocal)92 TEST(DISABLED_BENCH, MutexLocal) {
93 Mutex m;
94 ScopedThread().Create(m);
95 for (int i = 0; i < 50; i++) {
96 ScopedThread t;
97 t.Lock(m);
98 t.Unlock(m);
99 }
100 for (int i = 0; i < 16*1024*1024; i++) {
101 m.Lock();
102 m.Unlock();
103 }
104 ScopedThread().Destroy(m);
105 }
106