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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 */ | |
36 | #define suite_all { "all", "test all suite (pseudo suite)", 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 }, | |
2044279d | 55 | suite_all, |
827f3b49 HM |
56 | { NULL, |
57 | NULL, | |
58 | NULL } | |
59 | }; | |
60 | ||
629cc356 HM |
61 | struct bench_subsys { |
62 | const char *name; | |
63 | const char *summary; | |
64 | struct bench_suite *suites; | |
65 | }; | |
66 | ||
67 | static struct bench_subsys subsystems[] = { | |
68 | { "sched", | |
69 | "scheduler and IPC mechanism", | |
70 | sched_suites }, | |
827f3b49 HM |
71 | { "mem", |
72 | "memory access performance", | |
73 | mem_suites }, | |
2044279d HM |
74 | { "all", /* sentinel: easy for help */ |
75 | "test all subsystem (pseudo subsystem)", | |
76 | NULL }, | |
629cc356 HM |
77 | { NULL, |
78 | NULL, | |
827f3b49 | 79 | NULL } |
629cc356 HM |
80 | }; |
81 | ||
82 | static void dump_suites(int subsys_index) | |
83 | { | |
84 | int i; | |
85 | ||
2044279d | 86 | printf("# List of available suites for %s...\n\n", |
629cc356 HM |
87 | subsystems[subsys_index].name); |
88 | ||
89 | for (i = 0; subsystems[subsys_index].suites[i].name; i++) | |
2044279d | 90 | printf("%14s: %s\n", |
629cc356 HM |
91 | subsystems[subsys_index].suites[i].name, |
92 | subsystems[subsys_index].suites[i].summary); | |
93 | ||
94 | printf("\n"); | |
95 | return; | |
96 | } | |
97 | ||
edb7c60e | 98 | static const char *bench_format_str; |
386d7e9e HM |
99 | int bench_format = BENCH_FORMAT_DEFAULT; |
100 | ||
101 | static const struct option bench_options[] = { | |
102 | OPT_STRING('f', "format", &bench_format_str, "default", | |
103 | "Specify format style"), | |
104 | OPT_END() | |
105 | }; | |
106 | ||
107 | static const char * const bench_usage[] = { | |
108 | "perf bench [<common options>] <subsystem> <suite> [<options>]", | |
109 | NULL | |
110 | }; | |
111 | ||
112 | static void print_usage(void) | |
113 | { | |
114 | int i; | |
115 | ||
116 | printf("Usage: \n"); | |
117 | for (i = 0; bench_usage[i]; i++) | |
118 | printf("\t%s\n", bench_usage[i]); | |
119 | printf("\n"); | |
120 | ||
2044279d | 121 | printf("# List of available subsystems...\n\n"); |
386d7e9e HM |
122 | |
123 | for (i = 0; subsystems[i].name; i++) | |
2044279d | 124 | printf("%14s: %s\n", |
386d7e9e HM |
125 | subsystems[i].name, subsystems[i].summary); |
126 | printf("\n"); | |
127 | } | |
128 | ||
edb7c60e | 129 | static int bench_str2int(const char *str) |
386d7e9e HM |
130 | { |
131 | if (!str) | |
132 | return BENCH_FORMAT_DEFAULT; | |
133 | ||
134 | if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR)) | |
135 | return BENCH_FORMAT_DEFAULT; | |
136 | else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR)) | |
137 | return BENCH_FORMAT_SIMPLE; | |
138 | ||
139 | return BENCH_FORMAT_UNKNOWN; | |
140 | } | |
141 | ||
2044279d HM |
142 | static void all_suite(struct bench_subsys *subsys) /* FROM HERE */ |
143 | { | |
144 | int i; | |
145 | const char *argv[2]; | |
146 | struct bench_suite *suites = subsys->suites; | |
147 | ||
148 | argv[1] = NULL; | |
149 | /* | |
150 | * TODO: | |
151 | * preparing preset parameters for | |
152 | * embedded, ordinary PC, HPC, etc... | |
153 | * will be helpful | |
154 | */ | |
155 | for (i = 0; suites[i].fn; i++) { | |
156 | printf("# Running %s/%s benchmark...\n", | |
157 | subsys->name, | |
158 | suites[i].name); | |
159 | ||
160 | argv[1] = suites[i].name; | |
161 | suites[i].fn(1, argv, NULL); | |
162 | printf("\n"); | |
163 | } | |
164 | } | |
165 | ||
166 | static void all_subsystem(void) | |
167 | { | |
168 | int i; | |
169 | for (i = 0; subsystems[i].suites; i++) | |
170 | all_suite(&subsystems[i]); | |
171 | } | |
172 | ||
629cc356 HM |
173 | int cmd_bench(int argc, const char **argv, const char *prefix __used) |
174 | { | |
175 | int i, j, status = 0; | |
176 | ||
177 | if (argc < 2) { | |
178 | /* No subsystem specified. */ | |
386d7e9e HM |
179 | print_usage(); |
180 | goto end; | |
181 | } | |
629cc356 | 182 | |
386d7e9e HM |
183 | argc = parse_options(argc, argv, bench_options, bench_usage, |
184 | PARSE_OPT_STOP_AT_NON_OPTION); | |
185 | ||
186 | bench_format = bench_str2int(bench_format_str); | |
187 | if (bench_format == BENCH_FORMAT_UNKNOWN) { | |
188 | printf("Unknown format descriptor:%s\n", bench_format_str); | |
189 | goto end; | |
190 | } | |
629cc356 | 191 | |
386d7e9e HM |
192 | if (argc < 1) { |
193 | print_usage(); | |
629cc356 HM |
194 | goto end; |
195 | } | |
196 | ||
2044279d HM |
197 | if (!strcmp(argv[0], "all")) { |
198 | all_subsystem(); | |
199 | goto end; | |
200 | } | |
201 | ||
629cc356 | 202 | for (i = 0; subsystems[i].name; i++) { |
386d7e9e | 203 | if (strcmp(subsystems[i].name, argv[0])) |
629cc356 HM |
204 | continue; |
205 | ||
386d7e9e | 206 | if (argc < 2) { |
629cc356 HM |
207 | /* No suite specified. */ |
208 | dump_suites(i); | |
209 | goto end; | |
210 | } | |
211 | ||
2044279d HM |
212 | if (!strcmp(argv[1], "all")) { |
213 | all_suite(&subsystems[i]); | |
214 | goto end; | |
215 | } | |
216 | ||
629cc356 | 217 | for (j = 0; subsystems[i].suites[j].name; j++) { |
386d7e9e | 218 | if (strcmp(subsystems[i].suites[j].name, argv[1])) |
629cc356 HM |
219 | continue; |
220 | ||
79e295d4 HM |
221 | if (bench_format == BENCH_FORMAT_DEFAULT) |
222 | printf("# Running %s/%s benchmark...\n", | |
223 | subsystems[i].name, | |
224 | subsystems[i].suites[j].name); | |
386d7e9e HM |
225 | status = subsystems[i].suites[j].fn(argc - 1, |
226 | argv + 1, prefix); | |
629cc356 HM |
227 | goto end; |
228 | } | |
229 | ||
386d7e9e | 230 | if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) { |
629cc356 HM |
231 | dump_suites(i); |
232 | goto end; | |
233 | } | |
234 | ||
386d7e9e | 235 | printf("Unknown suite:%s for %s\n", argv[1], argv[0]); |
629cc356 HM |
236 | status = 1; |
237 | goto end; | |
238 | } | |
239 | ||
386d7e9e | 240 | printf("Unknown subsystem:%s\n", argv[0]); |
629cc356 HM |
241 | status = 1; |
242 | ||
243 | end: | |
244 | return status; | |
245 | } |