GNU Linux-libre 5.10.217-gnu1
[releases.git] / tools / perf / tests / expand-cgroup.c
1 // SPDX-License-Identifier: GPL-2.0
2 #include "tests.h"
3 #include "debug.h"
4 #include "evlist.h"
5 #include "cgroup.h"
6 #include "rblist.h"
7 #include "metricgroup.h"
8 #include "parse-events.h"
9 #include "pmu-events/pmu-events.h"
10 #include "pfm.h"
11 #include <subcmd/parse-options.h>
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <string.h>
15
16 static int test_expand_events(struct evlist *evlist,
17                               struct rblist *metric_events)
18 {
19         int i, ret = TEST_FAIL;
20         int nr_events;
21         bool was_group_event;
22         int nr_members;  /* for the first evsel only */
23         const char cgrp_str[] = "A,B,C";
24         const char *cgrp_name[] = { "A", "B", "C" };
25         int nr_cgrps = ARRAY_SIZE(cgrp_name);
26         char **ev_name;
27         struct evsel *evsel;
28
29         TEST_ASSERT_VAL("evlist is empty", !perf_evlist__empty(evlist));
30
31         nr_events = evlist->core.nr_entries;
32         ev_name = calloc(nr_events, sizeof(*ev_name));
33         if (ev_name == NULL) {
34                 pr_debug("memory allocation failure\n");
35                 return TEST_FAIL;
36         }
37         i = 0;
38         evlist__for_each_entry(evlist, evsel) {
39                 ev_name[i] = strdup(evsel->name);
40                 if (ev_name[i] == NULL) {
41                         pr_debug("memory allocation failure\n");
42                         goto out;
43                 }
44                 i++;
45         }
46         /* remember grouping info */
47         was_group_event = evsel__is_group_event(evlist__first(evlist));
48         nr_members = evlist__first(evlist)->core.nr_members;
49
50         ret = evlist__expand_cgroup(evlist, cgrp_str, metric_events, false);
51         if (ret < 0) {
52                 pr_debug("failed to expand events for cgroups\n");
53                 goto out;
54         }
55
56         ret = TEST_FAIL;
57         if (evlist->core.nr_entries != nr_events * nr_cgrps) {
58                 pr_debug("event count doesn't match\n");
59                 goto out;
60         }
61
62         i = 0;
63         evlist__for_each_entry(evlist, evsel) {
64                 if (strcmp(evsel->name, ev_name[i % nr_events])) {
65                         pr_debug("event name doesn't match:\n");
66                         pr_debug("  evsel[%d]: %s\n  expected: %s\n",
67                                  i, evsel->name, ev_name[i % nr_events]);
68                         goto out;
69                 }
70                 if (strcmp(evsel->cgrp->name, cgrp_name[i / nr_events])) {
71                         pr_debug("cgroup name doesn't match:\n");
72                         pr_debug("  evsel[%d]: %s\n  expected: %s\n",
73                                  i, evsel->cgrp->name, cgrp_name[i / nr_events]);
74                         goto out;
75                 }
76
77                 if ((i % nr_events) == 0) {
78                         if (evsel__is_group_event(evsel) != was_group_event) {
79                                 pr_debug("event group doesn't match: got %s, expect %s\n",
80                                          evsel__is_group_event(evsel) ? "true" : "false",
81                                          was_group_event ? "true" : "false");
82                                 goto out;
83                         }
84                         if (evsel->core.nr_members != nr_members) {
85                                 pr_debug("event group member doesn't match: %d vs %d\n",
86                                          evsel->core.nr_members, nr_members);
87                                 goto out;
88                         }
89                 }
90                 i++;
91         }
92         ret = TEST_OK;
93
94 out:    for (i = 0; i < nr_events; i++)
95                 free(ev_name[i]);
96         free(ev_name);
97         return ret;
98 }
99
100 static int expand_default_events(void)
101 {
102         int ret;
103         struct evlist *evlist;
104         struct rblist metric_events;
105
106         evlist = perf_evlist__new_default();
107         TEST_ASSERT_VAL("failed to get evlist", evlist);
108
109         rblist__init(&metric_events);
110         ret = test_expand_events(evlist, &metric_events);
111         evlist__delete(evlist);
112         return ret;
113 }
114
115 static int expand_group_events(void)
116 {
117         int ret;
118         struct evlist *evlist;
119         struct rblist metric_events;
120         struct parse_events_error err;
121         const char event_str[] = "{cycles,instructions}";
122
123         symbol_conf.event_group = true;
124
125         evlist = evlist__new();
126         TEST_ASSERT_VAL("failed to get evlist", evlist);
127
128         ret = parse_events(evlist, event_str, &err);
129         if (ret < 0) {
130                 pr_debug("failed to parse event '%s', err %d, str '%s'\n",
131                          event_str, ret, err.str);
132                 parse_events_print_error(&err, event_str);
133                 goto out;
134         }
135
136         rblist__init(&metric_events);
137         ret = test_expand_events(evlist, &metric_events);
138 out:
139         evlist__delete(evlist);
140         return ret;
141 }
142
143 static int expand_libpfm_events(void)
144 {
145         int ret;
146         struct evlist *evlist;
147         struct rblist metric_events;
148         const char event_str[] = "CYCLES";
149         struct option opt = {
150                 .value = &evlist,
151         };
152
153         symbol_conf.event_group = true;
154
155         evlist = evlist__new();
156         TEST_ASSERT_VAL("failed to get evlist", evlist);
157
158         ret = parse_libpfm_events_option(&opt, event_str, 0);
159         if (ret < 0) {
160                 pr_debug("failed to parse libpfm event '%s', err %d\n",
161                          event_str, ret);
162                 goto out;
163         }
164         if (perf_evlist__empty(evlist)) {
165                 pr_debug("libpfm was not enabled\n");
166                 goto out;
167         }
168
169         rblist__init(&metric_events);
170         ret = test_expand_events(evlist, &metric_events);
171 out:
172         evlist__delete(evlist);
173         return ret;
174 }
175
176 static int expand_metric_events(void)
177 {
178         int ret;
179         struct evlist *evlist;
180         struct rblist metric_events;
181         const char metric_str[] = "CPI";
182
183         struct pmu_event pme_test[] = {
184                 {
185                         .metric_expr    = "instructions / cycles",
186                         .metric_name    = "IPC",
187                 },
188                 {
189                         .metric_expr    = "1 / IPC",
190                         .metric_name    = "CPI",
191                 },
192                 {
193                         .metric_expr    = NULL,
194                         .metric_name    = NULL,
195                 },
196         };
197         struct pmu_events_map ev_map = {
198                 .cpuid          = "test",
199                 .version        = "1",
200                 .type           = "core",
201                 .table          = pme_test,
202         };
203
204         evlist = evlist__new();
205         TEST_ASSERT_VAL("failed to get evlist", evlist);
206
207         rblist__init(&metric_events);
208         ret = metricgroup__parse_groups_test(evlist, &ev_map, metric_str,
209                                              false, false, &metric_events);
210         if (ret < 0) {
211                 pr_debug("failed to parse '%s' metric\n", metric_str);
212                 goto out;
213         }
214
215         ret = test_expand_events(evlist, &metric_events);
216
217 out:
218         metricgroup__rblist_exit(&metric_events);
219         evlist__delete(evlist);
220         return ret;
221 }
222
223 int test__expand_cgroup_events(struct test *test __maybe_unused,
224                                int subtest __maybe_unused)
225 {
226         int ret;
227
228         ret = expand_default_events();
229         TEST_ASSERT_EQUAL("failed to expand default events", ret, 0);
230
231         ret = expand_group_events();
232         TEST_ASSERT_EQUAL("failed to expand event group", ret, 0);
233
234         ret = expand_libpfm_events();
235         TEST_ASSERT_EQUAL("failed to expand event group", ret, 0);
236
237         ret = expand_metric_events();
238         TEST_ASSERT_EQUAL("failed to expand metric events", ret, 0);
239
240         return ret;
241 }