Root/
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 |
15 | * mem ... memory access performance |
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 | }; |
34 | \ |
35 | /* sentinel: easy for help */ |
36 | #define suite_all { "all", "test all suite (pseudo suite)", NULL } |
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 }, |
45 | suite_all, |
46 | { NULL, |
47 | NULL, |
48 | NULL } |
49 | }; |
50 | |
51 | static struct bench_suite mem_suites[] = { |
52 | { "memcpy", |
53 | "Simple memory copy in various ways", |
54 | bench_mem_memcpy }, |
55 | suite_all, |
56 | { NULL, |
57 | NULL, |
58 | NULL } |
59 | }; |
60 | |
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 }, |
71 | { "mem", |
72 | "memory access performance", |
73 | mem_suites }, |
74 | { "all", /* sentinel: easy for help */ |
75 | "test all subsystem (pseudo subsystem)", |
76 | NULL }, |
77 | { NULL, |
78 | NULL, |
79 | NULL } |
80 | }; |
81 | |
82 | static void dump_suites(int subsys_index) |
83 | { |
84 | int i; |
85 | |
86 | printf("# List of available suites for %s...\n\n", |
87 | subsystems[subsys_index].name); |
88 | |
89 | for (i = 0; subsystems[subsys_index].suites[i].name; i++) |
90 | printf("%14s: %s\n", |
91 | subsystems[subsys_index].suites[i].name, |
92 | subsystems[subsys_index].suites[i].summary); |
93 | |
94 | printf("\n"); |
95 | return; |
96 | } |
97 | |
98 | static char *bench_format_str; |
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 | |
121 | printf("# List of available subsystems...\n\n"); |
122 | |
123 | for (i = 0; subsystems[i].name; i++) |
124 | printf("%14s: %s\n", |
125 | subsystems[i].name, subsystems[i].summary); |
126 | printf("\n"); |
127 | } |
128 | |
129 | static int bench_str2int(char *str) |
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 | |
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 | |
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. */ |
179 | print_usage(); |
180 | goto end; |
181 | } |
182 | |
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 | } |
191 | |
192 | if (argc < 1) { |
193 | print_usage(); |
194 | goto end; |
195 | } |
196 | |
197 | if (!strcmp(argv[0], "all")) { |
198 | all_subsystem(); |
199 | goto end; |
200 | } |
201 | |
202 | for (i = 0; subsystems[i].name; i++) { |
203 | if (strcmp(subsystems[i].name, argv[0])) |
204 | continue; |
205 | |
206 | if (argc < 2) { |
207 | /* No suite specified. */ |
208 | dump_suites(i); |
209 | goto end; |
210 | } |
211 | |
212 | if (!strcmp(argv[1], "all")) { |
213 | all_suite(&subsystems[i]); |
214 | goto end; |
215 | } |
216 | |
217 | for (j = 0; subsystems[i].suites[j].name; j++) { |
218 | if (strcmp(subsystems[i].suites[j].name, argv[1])) |
219 | continue; |
220 | |
221 | if (bench_format == BENCH_FORMAT_DEFAULT) |
222 | printf("# Running %s/%s benchmark...\n", |
223 | subsystems[i].name, |
224 | subsystems[i].suites[j].name); |
225 | status = subsystems[i].suites[j].fn(argc - 1, |
226 | argv + 1, prefix); |
227 | goto end; |
228 | } |
229 | |
230 | if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) { |
231 | dump_suites(i); |
232 | goto end; |
233 | } |
234 | |
235 | printf("Unknown suite:%s for %s\n", argv[1], argv[0]); |
236 | status = 1; |
237 | goto end; |
238 | } |
239 | |
240 | printf("Unknown subsystem:%s\n", argv[0]); |
241 | status = 1; |
242 | |
243 | end: |
244 | return status; |
245 | } |
246 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9