4 #include "lib/rbtree.h"
5 #include "lib/ieee754.h"
10 * Use for maintaining statistics
22 * A single data sample
31 struct io_sample_offset {
45 * Dynamically growing data sample log
49 * Entries already logged
55 unsigned int log_ddir_mask;
59 struct thread_data *td;
61 unsigned int log_type;
64 * If we fail extending the log, stop collecting more entries.
66 unsigned int disabled;
71 unsigned int log_offset;
74 * Max size of log entries before a chunk is compressed
79 * Don't deflate for storing, just store the compressed bits
81 unsigned int log_gz_store;
84 * Windowed average, for logging single entries average over some
87 struct io_stat avg_window[DDIR_RWDIR_CNT];
88 unsigned long avg_msec;
89 unsigned long avg_last;
91 pthread_mutex_t chunk_lock;
92 unsigned int chunk_seq;
93 struct flist_head chunk_list;
96 #define io_sample_ddir(io) ((io)->__ddir & ~0x80000000U)
98 static inline void io_sample_set_ddir(struct io_log *log,
102 io->__ddir = ddir | log->log_ddir_mask;
105 static inline size_t __log_entry_sz(int log_offset)
108 return sizeof(struct io_sample_offset);
110 return sizeof(struct io_sample);
113 static inline size_t log_entry_sz(struct io_log *log)
115 return __log_entry_sz(log->log_offset);
118 static inline struct io_sample *__get_sample(void *samples, int log_offset,
121 return samples + sample * __log_entry_sz(log_offset);
124 static inline struct io_sample *get_sample(struct io_log *iolog,
127 return __get_sample(iolog->log, iolog->log_offset, sample);
138 * When logging io actions, this matches a single sent io_u
142 struct rb_node rb_node;
143 struct flist_head list;
145 struct flist_head trim_list;
148 struct fio_file *file;
150 unsigned long long offset;
151 unsigned short numberio;
157 unsigned int file_action;
172 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
173 extern void log_io_u(struct thread_data *, struct io_u *);
174 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
175 extern int __must_check init_iolog(struct thread_data *td);
176 extern void log_io_piece(struct thread_data *, struct io_u *);
177 extern void unlog_io_piece(struct thread_data *, struct io_u *);
178 extern void trim_io_piece(struct thread_data *, struct io_u *);
179 extern void queue_io_piece(struct thread_data *, struct io_piece *);
180 extern void prune_io_piece_log(struct thread_data *);
181 extern void write_iolog_close(struct thread_data *);
184 extern int iolog_file_inflate(const char *);
191 struct thread_data *td;
192 unsigned long avg_msec;
200 extern void finalize_logs(struct thread_data *td);
201 extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
202 unsigned int, uint64_t);
203 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
204 unsigned int, uint64_t);
205 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
206 unsigned int, uint64_t);
207 extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
209 extern void add_iops_sample(struct thread_data *, enum fio_ddir, unsigned int,
211 extern void init_disk_util(struct thread_data *);
212 extern void update_rusage_stat(struct thread_data *);
213 extern void setup_log(struct io_log **, struct log_params *, const char *);
214 extern void flush_log(struct io_log *);
215 extern void free_log(struct io_log *);
216 extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
217 extern int write_bw_log;
218 extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
219 extern void fio_writeout_logs(struct thread_data *);
220 extern int iolog_flush(struct io_log *, int);
222 static inline void init_ipo(struct io_piece *ipo)
224 memset(ipo, 0, sizeof(*ipo));
225 INIT_FLIST_HEAD(&ipo->trim_list);