5 #include "lib/ieee754.h"
9 * Use for maintaining statistics
21 * A single data sample
39 * Dynamically growing data sample log
43 * Entries already logged
45 unsigned long nr_samples;
46 unsigned long max_samples;
47 struct io_sample *log;
49 unsigned int log_type;
52 * Windowed average, for logging single entries average over some
55 struct io_stat avg_window[2];
56 unsigned long avg_msec;
57 unsigned long avg_last;
67 * When logging io actions, this matches a single sent io_u
71 struct rb_node rb_node;
72 struct flist_head list;
74 struct flist_head trim_list;
77 struct fio_file *file;
79 unsigned long long offset;
85 unsigned int file_action;
99 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
100 extern void log_io_u(struct thread_data *, struct io_u *);
101 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
102 extern int __must_check init_iolog(struct thread_data *td);
103 extern void log_io_piece(struct thread_data *, struct io_u *);
104 extern void queue_io_piece(struct thread_data *, struct io_piece *);
105 extern void prune_io_piece_log(struct thread_data *);
106 extern void write_iolog_close(struct thread_data *);
111 extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
113 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
115 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
117 extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
119 extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
120 extern void init_disk_util(struct thread_data *);
121 extern void update_rusage_stat(struct thread_data *);
122 extern void update_io_ticks(void);
123 extern void setup_log(struct io_log **, unsigned long, int);
124 extern void finish_log(struct thread_data *, struct io_log *, const char *);
125 extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
126 extern void __finish_log(struct io_log *, const char *);
127 extern struct io_log *agg_io_log[2];
128 extern int write_bw_log;
129 extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
131 static inline void init_ipo(struct io_piece *ipo)
133 memset(ipo, 0, sizeof(*ipo));
134 INIT_FLIST_HEAD(&ipo->trim_list);