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629cc356 HM |
1 | /* |
2 | * | |
3 | * builtin-bench.c | |
4 | * | |
5 | * General benchmarking subsystem provided by perf | |
6 | * | |
7 | * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
12 | * | |
13 | * Available subsystem list: | |
14 | * sched ... scheduler and IPC mechanism | |
827f3b49 | 15 | * mem ... memory access performance |
629cc356 HM |
16 | * |
17 | */ | |
18 | ||
19 | #include "perf.h" | |
20 | #include "util/util.h" | |
21 | #include "util/parse-options.h" | |
22 | #include "builtin.h" | |
23 | #include "bench/bench.h" | |
24 | ||
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | ||
29 | struct bench_suite { | |
30 | const char *name; | |
31 | const char *summary; | |
32 | int (*fn)(int, const char **, const char *); | |
33 | }; | |
2044279d HM |
34 | \ |
35 | /* sentinel: easy for help */ | |
08942f6d | 36 | #define suite_all { "all", "Test all benchmark suites", NULL } |
629cc356 HM |
37 | |
38 | static struct bench_suite sched_suites[] = { | |
39 | { "messaging", | |
40 | "Benchmark for scheduler and IPC mechanisms", | |
41 | bench_sched_messaging }, | |
42 | { "pipe", | |
43 | "Flood of communication over pipe() between two processes", | |
44 | bench_sched_pipe }, | |
2044279d | 45 | suite_all, |
629cc356 HM |
46 | { NULL, |
47 | NULL, | |
48 | NULL } | |
49 | }; | |
50 | ||
827f3b49 HM |
51 | static struct bench_suite mem_suites[] = { |
52 | { "memcpy", | |
53 | "Simple memory copy in various ways", | |
54 | bench_mem_memcpy }, | |
be3de80d JB |
55 | { "memset", |
56 | "Simple memory set in various ways", | |
57 | bench_mem_memset }, | |
2044279d | 58 | suite_all, |
827f3b49 HM |
59 | { NULL, |
60 | NULL, | |
61 | NULL } | |
62 | }; | |
63 | ||
629cc356 HM |
64 | struct bench_subsys { |
65 | const char *name; | |
66 | const char *summary; | |
67 | struct bench_suite *suites; | |
68 | }; | |
69 | ||
70 | static struct bench_subsys subsystems[] = { | |
71 | { "sched", | |
72 | "scheduler and IPC mechanism", | |
73 | sched_suites }, | |
827f3b49 HM |
74 | { "mem", |
75 | "memory access performance", | |
76 | mem_suites }, | |
2044279d | 77 | { "all", /* sentinel: easy for help */ |
08942f6d | 78 | "all benchmark subsystem", |
2044279d | 79 | NULL }, |
629cc356 HM |
80 | { NULL, |
81 | NULL, | |
827f3b49 | 82 | NULL } |
629cc356 HM |
83 | }; |
84 | ||
85 | static void dump_suites(int subsys_index) | |
86 | { | |
87 | int i; | |
88 | ||
2044279d | 89 | printf("# List of available suites for %s...\n\n", |
629cc356 HM |
90 | subsystems[subsys_index].name); |
91 | ||
92 | for (i = 0; subsystems[subsys_index].suites[i].name; i++) | |
2044279d | 93 | printf("%14s: %s\n", |
629cc356 HM |
94 | subsystems[subsys_index].suites[i].name, |
95 | subsystems[subsys_index].suites[i].summary); | |
96 | ||
97 | printf("\n"); | |
98 | return; | |
99 | } | |
100 | ||
edb7c60e | 101 | static const char *bench_format_str; |
386d7e9e HM |
102 | int bench_format = BENCH_FORMAT_DEFAULT; |
103 | ||
104 | static const struct option bench_options[] = { | |
105 | OPT_STRING('f', "format", &bench_format_str, "default", | |
106 | "Specify format style"), | |
107 | OPT_END() | |
108 | }; | |
109 | ||
110 | static const char * const bench_usage[] = { | |
111 | "perf bench [<common options>] <subsystem> <suite> [<options>]", | |
112 | NULL | |
113 | }; | |
114 | ||
115 | static void print_usage(void) | |
116 | { | |
117 | int i; | |
118 | ||
119 | printf("Usage: \n"); | |
120 | for (i = 0; bench_usage[i]; i++) | |
121 | printf("\t%s\n", bench_usage[i]); | |
122 | printf("\n"); | |
123 | ||
2044279d | 124 | printf("# List of available subsystems...\n\n"); |
386d7e9e HM |
125 | |
126 | for (i = 0; subsystems[i].name; i++) | |
2044279d | 127 | printf("%14s: %s\n", |
386d7e9e HM |
128 | subsystems[i].name, subsystems[i].summary); |
129 | printf("\n"); | |
130 | } | |
131 | ||
edb7c60e | 132 | static int bench_str2int(const char *str) |
386d7e9e HM |
133 | { |
134 | if (!str) | |
135 | return BENCH_FORMAT_DEFAULT; | |
136 | ||
137 | if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR)) | |
138 | return BENCH_FORMAT_DEFAULT; | |
139 | else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR)) | |
140 | return BENCH_FORMAT_SIMPLE; | |
141 | ||
142 | return BENCH_FORMAT_UNKNOWN; | |
143 | } | |
144 | ||
2044279d HM |
145 | static void all_suite(struct bench_subsys *subsys) /* FROM HERE */ |
146 | { | |
147 | int i; | |
148 | const char *argv[2]; | |
149 | struct bench_suite *suites = subsys->suites; | |
150 | ||
151 | argv[1] = NULL; | |
152 | /* | |
153 | * TODO: | |
154 | * preparing preset parameters for | |
155 | * embedded, ordinary PC, HPC, etc... | |
156 | * will be helpful | |
157 | */ | |
158 | for (i = 0; suites[i].fn; i++) { | |
159 | printf("# Running %s/%s benchmark...\n", | |
160 | subsys->name, | |
161 | suites[i].name); | |
9b494ea2 | 162 | fflush(stdout); |
2044279d HM |
163 | |
164 | argv[1] = suites[i].name; | |
165 | suites[i].fn(1, argv, NULL); | |
166 | printf("\n"); | |
167 | } | |
168 | } | |
169 | ||
170 | static void all_subsystem(void) | |
171 | { | |
172 | int i; | |
173 | for (i = 0; subsystems[i].suites; i++) | |
174 | all_suite(&subsystems[i]); | |
175 | } | |
176 | ||
1d037ca1 | 177 | int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused) |
629cc356 HM |
178 | { |
179 | int i, j, status = 0; | |
180 | ||
181 | if (argc < 2) { | |
182 | /* No subsystem specified. */ | |
386d7e9e HM |
183 | print_usage(); |
184 | goto end; | |
185 | } | |
629cc356 | 186 | |
386d7e9e HM |
187 | argc = parse_options(argc, argv, bench_options, bench_usage, |
188 | PARSE_OPT_STOP_AT_NON_OPTION); | |
189 | ||
190 | bench_format = bench_str2int(bench_format_str); | |
191 | if (bench_format == BENCH_FORMAT_UNKNOWN) { | |
192 | printf("Unknown format descriptor:%s\n", bench_format_str); | |
193 | goto end; | |
194 | } | |
629cc356 | 195 | |
386d7e9e HM |
196 | if (argc < 1) { |
197 | print_usage(); | |
629cc356 HM |
198 | goto end; |
199 | } | |
200 | ||
2044279d HM |
201 | if (!strcmp(argv[0], "all")) { |
202 | all_subsystem(); | |
203 | goto end; | |
204 | } | |
205 | ||
629cc356 | 206 | for (i = 0; subsystems[i].name; i++) { |
386d7e9e | 207 | if (strcmp(subsystems[i].name, argv[0])) |
629cc356 HM |
208 | continue; |
209 | ||
386d7e9e | 210 | if (argc < 2) { |
629cc356 HM |
211 | /* No suite specified. */ |
212 | dump_suites(i); | |
213 | goto end; | |
214 | } | |
215 | ||
2044279d HM |
216 | if (!strcmp(argv[1], "all")) { |
217 | all_suite(&subsystems[i]); | |
218 | goto end; | |
219 | } | |
220 | ||
629cc356 | 221 | for (j = 0; subsystems[i].suites[j].name; j++) { |
386d7e9e | 222 | if (strcmp(subsystems[i].suites[j].name, argv[1])) |
629cc356 HM |
223 | continue; |
224 | ||
79e295d4 HM |
225 | if (bench_format == BENCH_FORMAT_DEFAULT) |
226 | printf("# Running %s/%s benchmark...\n", | |
227 | subsystems[i].name, | |
228 | subsystems[i].suites[j].name); | |
9b494ea2 | 229 | fflush(stdout); |
386d7e9e HM |
230 | status = subsystems[i].suites[j].fn(argc - 1, |
231 | argv + 1, prefix); | |
629cc356 HM |
232 | goto end; |
233 | } | |
234 | ||
386d7e9e | 235 | if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) { |
629cc356 HM |
236 | dump_suites(i); |
237 | goto end; | |
238 | } | |
239 | ||
386d7e9e | 240 | printf("Unknown suite:%s for %s\n", argv[1], argv[0]); |
629cc356 HM |
241 | status = 1; |
242 | goto end; | |
243 | } | |
244 | ||
386d7e9e | 245 | printf("Unknown subsystem:%s\n", argv[0]); |
629cc356 HM |
246 | status = 1; |
247 | ||
248 | end: | |
249 | return status; | |
250 | } |