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authorWu Fengguang <fengguang.wu@intel.com>2009-03-19 22:08:03 -0400
committerIngo Molnar <mingo@elte.hu>2009-04-06 03:30:20 -0400
commitf49012fad4ed2231c7380c0b1901122242b3eab0 (patch)
tree015db7f6d6adac377c814c8b6f23728e24cfc37e
parentcea92ce5b07078cd62c4712d51390b09a43dba2e (diff)
perf_counter tools: Move perfstat supporting code into perfcounters.h
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--Documentation/perf_counter/perfcounters.h130
-rw-r--r--Documentation/perf_counter/perfstat.c130
2 files changed, 130 insertions, 130 deletions
diff --git a/Documentation/perf_counter/perfcounters.h b/Documentation/perf_counter/perfcounters.h
index 8c1559b25f10..0f3764aa52ab 100644
--- a/Documentation/perf_counter/perfcounters.h
+++ b/Documentation/perf_counter/perfcounters.h
@@ -16,6 +16,14 @@
16 16
17#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) 17#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
18 18
19#define rdclock() \
20({ \
21 struct timespec ts; \
22 \
23 clock_gettime(CLOCK_MONOTONIC, &ts); \
24 ts.tv_sec * 1000000000ULL + ts.tv_nsec; \
25})
26
19/* 27/*
20 * Pick up some kernel type conventions: 28 * Pick up some kernel type conventions:
21 */ 29 */
@@ -135,3 +143,125 @@ asmlinkage int sys_perf_counter_open(
135 return ret; 143 return ret;
136} 144}
137 145
146static char *hw_event_names [] = {
147 "CPU cycles",
148 "instructions",
149 "cache references",
150 "cache misses",
151 "branches",
152 "branch misses",
153 "bus cycles",
154};
155
156static char *sw_event_names [] = {
157 "cpu clock ticks",
158 "task clock ticks",
159 "pagefaults",
160 "context switches",
161 "CPU migrations",
162};
163
164struct event_symbol {
165 int event;
166 char *symbol;
167};
168
169static struct event_symbol event_symbols [] = {
170 {PERF_COUNT_CPU_CYCLES, "cpu-cycles", },
171 {PERF_COUNT_CPU_CYCLES, "cycles", },
172 {PERF_COUNT_INSTRUCTIONS, "instructions", },
173 {PERF_COUNT_CACHE_REFERENCES, "cache-references", },
174 {PERF_COUNT_CACHE_MISSES, "cache-misses", },
175 {PERF_COUNT_BRANCH_INSTRUCTIONS, "branch-instructions", },
176 {PERF_COUNT_BRANCH_INSTRUCTIONS, "branches", },
177 {PERF_COUNT_BRANCH_MISSES, "branch-misses", },
178 {PERF_COUNT_BUS_CYCLES, "bus-cycles", },
179 {PERF_COUNT_CPU_CLOCK, "cpu-ticks", },
180 {PERF_COUNT_CPU_CLOCK, "ticks", },
181 {PERF_COUNT_TASK_CLOCK, "task-ticks", },
182 {PERF_COUNT_PAGE_FAULTS, "page-faults", },
183 {PERF_COUNT_PAGE_FAULTS, "faults", },
184 {PERF_COUNT_CONTEXT_SWITCHES, "context-switches", },
185 {PERF_COUNT_CONTEXT_SWITCHES, "cs", },
186 {PERF_COUNT_CPU_MIGRATIONS, "cpu-migrations", },
187 {PERF_COUNT_CPU_MIGRATIONS, "migrations", },
188};
189
190static int type_valid(int type)
191{
192 if (type >= PERF_HW_EVENTS_MAX)
193 return 0;
194 if (type <= PERF_SW_EVENTS_MIN)
195 return 0;
196
197 return 1;
198}
199
200static char *event_name(int ctr)
201{
202 int type = event_id[ctr];
203 static char buf[32];
204
205 if (event_raw[ctr]) {
206 sprintf(buf, "raw 0x%x", type);
207 return buf;
208 }
209 if (!type_valid(type))
210 return "unknown";
211
212 if (type >= 0)
213 return hw_event_names[type];
214
215 return sw_event_names[-type-1];
216}
217
218/*
219 * Each event can have multiple symbolic names.
220 * Symbolic names are (almost) exactly matched.
221 */
222static int match_event_symbols(char *str)
223{
224 unsigned int i;
225
226 if (isdigit(str[0]) || str[0] == '-')
227 return atoi(str);
228
229 for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
230 if (!strncmp(str, event_symbols[i].symbol,
231 strlen(event_symbols[i].symbol)))
232 return event_symbols[i].event;
233 }
234
235 return PERF_HW_EVENTS_MAX;
236}
237
238static void parse_events(char *str)
239{
240 int type, raw;
241
242again:
243 nr_counters++;
244 if (nr_counters == MAX_COUNTERS)
245 display_help();
246
247 raw = 0;
248 if (*str == 'r') {
249 raw = 1;
250 ++str;
251 type = strtol(str, NULL, 16);
252 } else {
253 type = match_event_symbols(str);
254 if (!type_valid(type))
255 display_help();
256 }
257
258 event_id[nr_counters] = type;
259 event_raw[nr_counters] = raw;
260
261 str = strstr(str, ",");
262 if (str) {
263 str++;
264 goto again;
265 }
266}
267
diff --git a/Documentation/perf_counter/perfstat.c b/Documentation/perf_counter/perfstat.c
index a3d4a7a602f6..3364dcb9dd9d 100644
--- a/Documentation/perf_counter/perfstat.c
+++ b/Documentation/perf_counter/perfstat.c
@@ -54,50 +54,6 @@
54 54
55#include "perfcounters.h" 55#include "perfcounters.h"
56 56
57static char *hw_event_names [] = {
58 "CPU cycles",
59 "instructions",
60 "cache references",
61 "cache misses",
62 "branches",
63 "branch misses",
64 "bus cycles",
65};
66
67static char *sw_event_names [] = {
68 "cpu clock ticks",
69 "task clock ticks",
70 "pagefaults",
71 "context switches",
72 "CPU migrations",
73};
74
75struct event_symbol {
76 int event;
77 char *symbol;
78};
79
80static struct event_symbol event_symbols [] = {
81 {PERF_COUNT_CPU_CYCLES, "cpu-cycles", },
82 {PERF_COUNT_CPU_CYCLES, "cycles", },
83 {PERF_COUNT_INSTRUCTIONS, "instructions", },
84 {PERF_COUNT_CACHE_REFERENCES, "cache-references", },
85 {PERF_COUNT_CACHE_MISSES, "cache-misses", },
86 {PERF_COUNT_BRANCH_INSTRUCTIONS, "branch-instructions", },
87 {PERF_COUNT_BRANCH_INSTRUCTIONS, "branches", },
88 {PERF_COUNT_BRANCH_MISSES, "branch-misses", },
89 {PERF_COUNT_BUS_CYCLES, "bus-cycles", },
90 {PERF_COUNT_CPU_CLOCK, "cpu-ticks", },
91 {PERF_COUNT_CPU_CLOCK, "ticks", },
92 {PERF_COUNT_TASK_CLOCK, "task-ticks", },
93 {PERF_COUNT_PAGE_FAULTS, "page-faults", },
94 {PERF_COUNT_PAGE_FAULTS, "faults", },
95 {PERF_COUNT_CONTEXT_SWITCHES, "context-switches", },
96 {PERF_COUNT_CONTEXT_SWITCHES, "cs", },
97 {PERF_COUNT_CPU_MIGRATIONS, "cpu-migrations", },
98 {PERF_COUNT_CPU_MIGRATIONS, "migrations", },
99};
100
101static int nr_counters = 0; 57static int nr_counters = 0;
102static int nr_cpus = 0; 58static int nr_cpus = 0;
103 59
@@ -137,84 +93,6 @@ static void display_help(void)
137 exit(0); 93 exit(0);
138} 94}
139 95
140static int type_valid(int type)
141{
142 if (type >= PERF_HW_EVENTS_MAX)
143 return 0;
144 if (type <= PERF_SW_EVENTS_MIN)
145 return 0;
146
147 return 1;
148}
149
150static char *event_name(int ctr)
151{
152 int type = event_id[ctr];
153 static char buf[32];
154
155 if (event_raw[ctr]) {
156 sprintf(buf, "raw 0x%x", type);
157 return buf;
158 }
159 if (!type_valid(type))
160 return "unknown";
161
162 if (type >= 0)
163 return hw_event_names[type];
164
165 return sw_event_names[-type-1];
166}
167
168/*
169 * Each event can have multiple symbolic names.
170 * Symbolic names are (almost) exactly matched.
171 */
172static int match_event_symbols(char *str)
173{
174 unsigned int i;
175
176 if (isdigit(str[0]) || str[0] == '-')
177 return atoi(str);
178
179 for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
180 if (!strncmp(str, event_symbols[i].symbol,
181 strlen(event_symbols[i].symbol)))
182 return event_symbols[i].event;
183 }
184
185 return PERF_HW_EVENTS_MAX;
186}
187
188static void parse_events(char *str)
189{
190 int type, raw;
191
192again:
193 nr_counters++;
194 if (nr_counters == MAX_COUNTERS)
195 display_help();
196
197 raw = 0;
198 if (*str == 'r') {
199 raw = 1;
200 ++str;
201 type = strtol(str, NULL, 16);
202 } else {
203 type = match_event_symbols(str);
204 if (!type_valid(type))
205 display_help();
206 }
207
208 event_id[nr_counters] = type;
209 event_raw[nr_counters] = raw;
210
211 str = strstr(str, ",");
212 if (str) {
213 str++;
214 goto again;
215 }
216}
217
218static void process_options(int argc, char *argv[]) 96static void process_options(int argc, char *argv[])
219{ 97{
220 for (;;) { 98 for (;;) {
@@ -296,14 +174,6 @@ static void create_counter(int counter)
296} 174}
297 175
298 176
299#define rdclock() \
300({ \
301 struct timespec ts; \
302 \
303 clock_gettime(CLOCK_MONOTONIC, &ts); \
304 ts.tv_sec * 1000000000ULL + ts.tv_nsec; \
305})
306
307int main(int argc, char *argv[]) 177int main(int argc, char *argv[])
308{ 178{
309 unsigned long long t0, t1; 179 unsigned long long t0, t1;