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11#include "resctrl.h"
12
13#define BENCHMARK_ARGS 64
14#define BENCHMARK_ARG_SIZE 64
15
16bool is_amd;
17
18void detect_amd(void)
19{
20 FILE *inf = fopen("/proc/cpuinfo", "r");
21 char *res;
22
23 if (!inf)
24 return;
25
26 res = fgrep(inf, "vendor_id");
27
28 if (res) {
29 char *s = strchr(res, ':');
30
31 is_amd = s && !strcmp(s, ": AuthenticAMD\n");
32 free(res);
33 }
34 fclose(inf);
35}
36
37static void cmd_help(void)
38{
39 printf("usage: resctrl_tests [-h] [-b \"benchmark_cmd [options]\"] [-t test list] [-n no_of_bits]\n");
40 printf("\t-b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM");
41 printf("\t default benchmark is builtin fill_buf\n");
42 printf("\t-t test list: run tests specified in the test list, ");
43 printf("e.g. -t mbm, mba, cqm, cat\n");
44 printf("\t-n no_of_bits: run cache tests using specified no of bits in cache bit mask\n");
45 printf("\t-p cpu_no: specify CPU number to run the test. 1 is default\n");
46 printf("\t-h: help\n");
47}
48
49void tests_cleanup(void)
50{
51 mbm_test_cleanup();
52 mba_test_cleanup();
53 cqm_test_cleanup();
54 cat_test_cleanup();
55}
56
57int main(int argc, char **argv)
58{
59 bool has_ben = false, mbm_test = true, mba_test = true, cqm_test = true;
60 int res, c, cpu_no = 1, span = 250, argc_new = argc, i, no_of_bits = 5;
61 char *benchmark_cmd[BENCHMARK_ARGS], bw_report[64], bm_type[64];
62 char benchmark_cmd_area[BENCHMARK_ARGS][BENCHMARK_ARG_SIZE];
63 int ben_ind, ben_count;
64 bool cat_test = true;
65
66 for (i = 0; i < argc; i++) {
67 if (strcmp(argv[i], "-b") == 0) {
68 ben_ind = i + 1;
69 ben_count = argc - ben_ind;
70 argc_new = ben_ind - 1;
71 has_ben = true;
72 break;
73 }
74 }
75
76 while ((c = getopt(argc_new, argv, "ht:b:")) != -1) {
77 char *token;
78
79 switch (c) {
80 case 't':
81 token = strtok(optarg, ",");
82
83 mbm_test = false;
84 mba_test = false;
85 cqm_test = false;
86 cat_test = false;
87 while (token) {
88 if (!strcmp(token, "mbm")) {
89 mbm_test = true;
90 } else if (!strcmp(token, "mba")) {
91 mba_test = true;
92 } else if (!strcmp(token, "cqm")) {
93 cqm_test = true;
94 } else if (!strcmp(token, "cat")) {
95 cat_test = true;
96 } else {
97 printf("invalid argument\n");
98
99 return -1;
100 }
101 token = strtok(NULL, ":\t");
102 }
103 break;
104 case 'p':
105 cpu_no = atoi(optarg);
106 break;
107 case 'n':
108 no_of_bits = atoi(optarg);
109 break;
110 case 'h':
111 cmd_help();
112
113 return 0;
114 default:
115 printf("invalid argument\n");
116
117 return -1;
118 }
119 }
120
121 printf("TAP version 13\n");
122
123
124
125
126
127
128 if (geteuid() != 0)
129 printf("# WARNING: not running as root, tests may fail.\n");
130
131
132 detect_amd();
133
134 if (has_ben) {
135
136 for (i = ben_ind; i < argc; i++) {
137 benchmark_cmd[i - ben_ind] = benchmark_cmd_area[i];
138 sprintf(benchmark_cmd[i - ben_ind], "%s", argv[i]);
139 }
140 benchmark_cmd[ben_count] = NULL;
141 } else {
142
143 for (i = 0; i < 6; i++)
144 benchmark_cmd[i] = benchmark_cmd_area[i];
145
146 strcpy(benchmark_cmd[0], "fill_buf");
147 sprintf(benchmark_cmd[1], "%d", span);
148 strcpy(benchmark_cmd[2], "1");
149 strcpy(benchmark_cmd[3], "1");
150 strcpy(benchmark_cmd[4], "0");
151 strcpy(benchmark_cmd[5], "");
152 benchmark_cmd[6] = NULL;
153 }
154
155 sprintf(bw_report, "reads");
156 sprintf(bm_type, "fill_buf");
157
158 check_resctrlfs_support();
159 filter_dmesg();
160
161 if (!is_amd && mbm_test) {
162 printf("# Starting MBM BW change ...\n");
163 if (!has_ben)
164 sprintf(benchmark_cmd[5], "%s", "mba");
165 res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
166 printf("%sok MBM: bw change\n", res ? "not " : "");
167 mbm_test_cleanup();
168 tests_run++;
169 }
170
171 if (!is_amd && mba_test) {
172 printf("# Starting MBA Schemata change ...\n");
173 if (!has_ben)
174 sprintf(benchmark_cmd[1], "%d", span);
175 res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd);
176 printf("%sok MBA: schemata change\n", res ? "not " : "");
177 mba_test_cleanup();
178 tests_run++;
179 }
180
181 if (cqm_test) {
182 printf("# Starting CQM test ...\n");
183 if (!has_ben)
184 sprintf(benchmark_cmd[5], "%s", "cqm");
185 res = cqm_resctrl_val(cpu_no, no_of_bits, benchmark_cmd);
186 printf("%sok CQM: test\n", res ? "not " : "");
187 cqm_test_cleanup();
188 tests_run++;
189 }
190
191 if (cat_test) {
192 printf("# Starting CAT test ...\n");
193 res = cat_perf_miss_val(cpu_no, no_of_bits, "L3");
194 printf("%sok CAT: test\n", res ? "not " : "");
195 tests_run++;
196 cat_test_cleanup();
197 }
198
199 printf("1..%d\n", tests_run);
200
201 return 0;
202}
203
