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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 | #ifndef PERF_UTIL_KWORK_H #define PERF_UTIL_KWORK_H #include "util/tool.h" #include "util/time-utils.h" #include <linux/bitmap.h> #include <linux/list.h> #include <linux/rbtree.h> #include <linux/types.h> struct perf_sample; struct perf_session; enum kwork_class_type { KWORK_CLASS_IRQ, KWORK_CLASS_SOFTIRQ, KWORK_CLASS_WORKQUEUE, KWORK_CLASS_MAX, }; enum kwork_report_type { KWORK_REPORT_RUNTIME, KWORK_REPORT_LATENCY, KWORK_REPORT_TIMEHIST, }; enum kwork_trace_type { KWORK_TRACE_RAISE, KWORK_TRACE_ENTRY, KWORK_TRACE_EXIT, KWORK_TRACE_MAX, }; /* * data structure: * * +==================+ +============+ +======================+ * | class | | work | | atom | * +==================+ +============+ +======================+ * +------------+ | +-----+ | | +------+ | | +-------+ +-----+ | * | perf_kwork | +-> | irq | --------|+-> | eth0 | --+-> | raise | - | ... | --+ +-----------+ * +-----+------+ || +-----+ ||| +------+ ||| +-------+ +-----+ | | | | * | || ||| ||| | +-> | atom_page | * | || ||| ||| +-------+ +-----+ | | | * | class_list ||| |+-> | entry | - | ... | ----> | | * | || ||| ||| +-------+ +-----+ | | | * | || ||| ||| | +-> | | * | || ||| ||| +-------+ +-----+ | | | | * | || ||| |+-> | exit | - | ... | --+ +-----+-----+ * | || ||| | | +-------+ +-----+ | | * | || ||| | | | | * | || ||| +-----+ | | | | * | || |+-> | ... | | | | | * | || | | +-----+ | | | | * | || | | | | | | * | || +---------+ | | +-----+ | | +-------+ +-----+ | | * | +-> | softirq | -------> | RCU | ---+-> | raise | - | ... | --+ +-----+-----+ * | || +---------+ | | +-----+ ||| +-------+ +-----+ | | | | * | || | | ||| | +-> | atom_page | * | || | | ||| +-------+ +-----+ | | | * | || | | |+-> | entry | - | ... | ----> | | * | || | | ||| +-------+ +-----+ | | | * | || | | ||| | +-> | | * | || | | ||| +-------+ +-----+ | | | | * | || | | |+-> | exit | - | ... | --+ +-----+-----+ * | || | | | | +-------+ +-----+ | | * | || | | | | | | * | || +-----------+ | | +-----+ | | | | * | +-> | workqueue | -----> | ... | | | | | * | | +-----------+ | | +-----+ | | | | * | +==================+ +============+ +======================+ | * | | * +----> atom_page_list ---------------------------------------------------------+ * */ struct kwork_atom { struct list_head list; u64 time; struct kwork_atom *prev; void *page_addr; unsigned long bit_inpage; }; #define NR_ATOM_PER_PAGE 128 struct kwork_atom_page { struct list_head list; struct kwork_atom atoms[NR_ATOM_PER_PAGE]; DECLARE_BITMAP(bitmap, NR_ATOM_PER_PAGE); }; struct kwork_class; struct kwork_work { /* * class field */ struct rb_node node; struct kwork_class *class; /* * work field */ u64 id; int cpu; char *name; /* * atom field */ u64 nr_atoms; struct list_head atom_list[KWORK_TRACE_MAX]; /* * runtime report */ u64 max_runtime; u64 max_runtime_start; u64 max_runtime_end; u64 total_runtime; /* * latency report */ u64 max_latency; u64 max_latency_start; u64 max_latency_end; u64 total_latency; }; struct kwork_class { struct list_head list; const char *name; enum kwork_class_type type; unsigned int nr_tracepoints; const struct evsel_str_handler *tp_handlers; struct rb_root_cached work_root; int (*class_init)(struct kwork_class *class, struct perf_session *session); void (*work_init)(struct kwork_class *class, struct kwork_work *work, struct evsel *evsel, struct perf_sample *sample, struct machine *machine); void (*work_name)(struct kwork_work *work, char *buf, int len); }; struct perf_kwork; struct trace_kwork_handler { int (*raise_event)(struct perf_kwork *kwork, struct kwork_class *class, struct evsel *evsel, struct perf_sample *sample, struct machine *machine); int (*entry_event)(struct perf_kwork *kwork, struct kwork_class *class, struct evsel *evsel, struct perf_sample *sample, struct machine *machine); int (*exit_event)(struct perf_kwork *kwork, struct kwork_class *class, struct evsel *evsel, struct perf_sample *sample, struct machine *machine); }; struct perf_kwork { /* * metadata */ struct perf_tool tool; struct list_head class_list; struct list_head atom_page_list; struct list_head sort_list, cmp_id; struct rb_root_cached sorted_work_root; const struct trace_kwork_handler *tp_handler; /* * profile filters */ const char *profile_name; const char *cpu_list; DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); const char *time_str; struct perf_time_interval ptime; /* * options for command */ bool force; const char *event_list_str; enum kwork_report_type report; /* * options for subcommand */ bool summary; const char *sort_order; bool show_callchain; unsigned int max_stack; bool use_bpf; /* * statistics */ u64 timestart; u64 timeend; unsigned long nr_events; unsigned long nr_lost_chunks; unsigned long nr_lost_events; u64 all_runtime; u64 all_count; u64 nr_skipped_events[KWORK_TRACE_MAX + 1]; }; struct kwork_work *perf_kwork_add_work(struct perf_kwork *kwork, struct kwork_class *class, struct kwork_work *key); #ifdef HAVE_BPF_SKEL int perf_kwork__trace_prepare_bpf(struct perf_kwork *kwork); int perf_kwork__report_read_bpf(struct perf_kwork *kwork); void perf_kwork__report_cleanup_bpf(void); void perf_kwork__trace_start(void); void perf_kwork__trace_finish(void); #else /* !HAVE_BPF_SKEL */ static inline int perf_kwork__trace_prepare_bpf(struct perf_kwork *kwork __maybe_unused) { return -1; } static inline int perf_kwork__report_read_bpf(struct perf_kwork *kwork __maybe_unused) { return -1; } static inline void perf_kwork__report_cleanup_bpf(void) {} static inline void perf_kwork__trace_start(void) {} static inline void perf_kwork__trace_finish(void) {} #endif /* HAVE_BPF_SKEL */ #endif /* PERF_UTIL_KWORK_H */ |