1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/compiler.h>
3 #include <linux/time64.h>
4 #include <inttypes.h>
5 #include <string.h>
6 #include "time-utils.h"
7 #include "evlist.h"
8 #include "session.h"
9 #include "debug.h"
10 #include "tests.h"
11
12 static bool test__parse_nsec_time(const char *str, u64 expected)
13 {
14 u64 ptime;
15 int err;
16
17 pr_debug("\nparse_nsec_time(\"%s\")\n", str);
18
19 err = parse_nsec_time(str, &ptime);
20 if (err) {
21 pr_debug("error %d\n", err);
22 return false;
23 }
24
25 if (ptime != expected) {
26 pr_debug("Failed. ptime %" PRIu64 " expected %" PRIu64 "\n",
27 ptime, expected);
28 return false;
29 }
30
31 pr_debug("%" PRIu64 "\n", ptime);
32
33 return true;
34 }
35
36 static bool test__perf_time__parse_str(const char *ostr, u64 start, u64 end)
37 {
38 struct perf_time_interval ptime;
39 int err;
40
41 pr_debug("\nperf_time__parse_str(\"%s\")\n", ostr);
42
43 err = perf_time__parse_str(&ptime, ostr);
44 if (err) {
45 pr_debug("Error %d\n", err);
46 return false;
47 }
48
49 if (ptime.start != start || ptime.end != end) {
50 pr_debug("Failed. Expected %" PRIu64 " to %" PRIu64 "\n",
51 start, end);
52 return false;
53 }
54
55 return true;
56 }
57
58 #define TEST_MAX 64
59
60 struct test_data {
61 const char *str;
62 u64 first;
63 u64 last;
64 struct perf_time_interval ptime[TEST_MAX];
65 int num;
66 u64 skip[TEST_MAX];
67 u64 noskip[TEST_MAX];
68 };
69
70 static bool test__perf_time__parse_for_ranges(struct test_data *d)
71 {
72 struct evlist evlist = {
73 .first_sample_time = d->first,
74 .last_sample_time = d->last,
75 };
76 struct perf_session session = { .evlist = &evlist };
77 struct perf_time_interval *ptime = NULL;
78 int range_size, range_num;
79 bool pass = false;
80 int i, err;
81
82 pr_debug("\nperf_time__parse_for_ranges(\"%s\")\n", d->str);
83
84 if (strchr(d->str, '%'))
85 pr_debug("first_sample_time %" PRIu64 " last_sample_time %" PRIu64 "\n",
86 d->first, d->last);
87
88 err = perf_time__parse_for_ranges(d->str, &session, &ptime, &range_size,
89 &range_num);
90 if (err) {
91 pr_debug("error %d\n", err);
92 goto out;
93 }
94
95 if (range_size < d->num || range_num != d->num) {
96 pr_debug("bad size: range_size %d range_num %d expected num %d\n",
97 range_size, range_num, d->num);
98 goto out;
99 }
100
101 for (i = 0; i < d->num; i++) {
102 if (ptime[i].start != d->ptime[i].start ||
103 ptime[i].end != d->ptime[i].end) {
104 pr_debug("bad range %d expected %" PRIu64 " to %" PRIu64 "\n",
105 i, d->ptime[i].start, d->ptime[i].end);
106 goto out;
107 }
108 }
109
110 if (perf_time__ranges_skip_sample(ptime, d->num, 0)) {
111 pr_debug("failed to keep 0\n");
112 goto out;
113 }
114
115 for (i = 0; i < TEST_MAX; i++) {
116 if (d->skip[i] &&
117 !perf_time__ranges_skip_sample(ptime, d->num, d->skip[i])) {
118 pr_debug("failed to skip %" PRIu64 "\n", d->skip[i]);
119 goto out;
120 }
121 if (d->noskip[i] &&
122 perf_time__ranges_skip_sample(ptime, d->num, d->noskip[i])) {
123 pr_debug("failed to keep %" PRIu64 "\n", d->noskip[i]);
124 goto out;
125 }
126 }
127
128 pass = true;
129 out:
130 free(ptime);
131 return pass;
132 }
133
134 static int test__time_utils(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
135 {
136 bool pass = true;
137
138 pass &= test__parse_nsec_time("", 0);
139 pass &= test__parse_nsec_time("1", 1000000000ULL);
140 pass &= test__parse_nsec_time("0.000000001", 1);
141 pass &= test__parse_nsec_time("1.000000001", 1000000001ULL);
142 pass &= test__parse_nsec_time("123456.123456", 123456123456000ULL);
143 pass &= test__parse_nsec_time("1234567.123456789", 1234567123456789ULL);
144 pass &= test__parse_nsec_time("18446744073.709551615",
145 0xFFFFFFFFFFFFFFFFULL);
146
147 pass &= test__perf_time__parse_str("1234567.123456789,1234567.123456789",
148 1234567123456789ULL, 1234567123456789ULL);
149 pass &= test__perf_time__parse_str("1234567.123456789,1234567.123456790",
150 1234567123456789ULL, 1234567123456790ULL);
151 pass &= test__perf_time__parse_str("1234567.123456789,",
152 1234567123456789ULL, 0);
153 pass &= test__perf_time__parse_str(",1234567.123456789",
154 0, 1234567123456789ULL);
155 pass &= test__perf_time__parse_str("0,1234567.123456789",
156 0, 1234567123456789ULL);
157
158 {
159 u64 b = 1234567123456789ULL;
160 struct test_data d = {
161 .str = "1234567.123456789,1234567.123456790",
162 .ptime = { {b, b + 1}, },
163 .num = 1,
164 .skip = { b - 1, b + 2, },
165 .noskip = { b, b + 1, },
166 };
167
168 pass &= test__perf_time__parse_for_ranges(&d);
169 }
170
171 {
172 u64 b = 1234567123456789ULL;
173 u64 c = 7654321987654321ULL;
174 u64 e = 8000000000000000ULL;
175 struct test_data d = {
176 .str = "1234567.123456789,1234567.123456790 "
177 "7654321.987654321,7654321.987654444 "
178 "8000000,8000000.000000005",
179 .ptime = { {b, b + 1}, {c, c + 123}, {e, e + 5}, },
180 .num = 3,
181 .skip = { b - 1, b + 2, c - 1, c + 124, e - 1, e + 6 },
182 .noskip = { b, b + 1, c, c + 123, e, e + 5 },
183 };
184
185 pass &= test__perf_time__parse_for_ranges(&d);
186 }
187
188 {
189 u64 b = 7654321ULL * NSEC_PER_SEC;
190 struct test_data d = {
191 .str = "10%/1",
192 .first = b,
193 .last = b + 100,
194 .ptime = { {b, b + 9}, },
195 .num = 1,
196 .skip = { b - 1, b + 10, },
197 .noskip = { b, b + 9, },
198 };
199
200 pass &= test__perf_time__parse_for_ranges(&d);
201 }
202
203 {
204 u64 b = 7654321ULL * NSEC_PER_SEC;
205 struct test_data d = {
206 .str = "10%/2",
207 .first = b,
208 .last = b + 100,
209 .ptime = { {b + 10, b + 19}, },
210 .num = 1,
211 .skip = { b + 9, b + 20, },
212 .noskip = { b + 10, b + 19, },
213 };
214
215 pass &= test__perf_time__parse_for_ranges(&d);
216 }
217
218 {
219 u64 b = 11223344ULL * NSEC_PER_SEC;
220 struct test_data d = {
221 .str = "10%/1,10%/2",
222 .first = b,
223 .last = b + 100,
224 .ptime = { {b, b + 9}, {b + 10, b + 19}, },
225 .num = 2,
226 .skip = { b - 1, b + 20, },
227 .noskip = { b, b + 8, b + 9, b + 10, b + 11, b + 12, b + 19, },
228 };
229
230 pass &= test__perf_time__parse_for_ranges(&d);
231 }
232
233 {
234 u64 b = 11223344ULL * NSEC_PER_SEC;
235 struct test_data d = {
236 .str = "10%/1,10%/3,10%/10",
237 .first = b,
238 .last = b + 100,
239 .ptime = { {b, b + 9}, {b + 20, b + 29}, { b + 90, b + 100}, },
240 .num = 3,
241 .skip = { b - 1, b + 10, b + 19, b + 30, b + 89, b + 101 },
242 .noskip = { b, b + 9, b + 20, b + 29, b + 90, b + 100},
243 };
244
245 pass &= test__perf_time__parse_for_ranges(&d);
246 }
247
248 pr_debug("\n");
249
250 return pass ? 0 : TEST_FAIL;
251 }
252
253 DEFINE_SUITE("time utils", time_utils);
254
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