5 #include "lib/ieee754.h"
9 * Use for maintaining statistics
21 * A single data sample
31 * Dynamically growing data sample log
35 * Entries already logged
37 unsigned long nr_samples;
38 unsigned long max_samples;
39 struct io_sample *log;
42 * Windowed average, for logging single entries average over some
45 struct io_stat avg_window[2];
46 unsigned long avg_msec;
47 unsigned long avg_last;
57 * When logging io actions, this matches a single sent io_u
61 struct rb_node rb_node;
62 struct flist_head list;
64 struct flist_head trim_list;
67 struct fio_file *file;
69 unsigned long long offset;
75 unsigned int file_action;
89 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
90 extern void log_io_u(struct thread_data *, struct io_u *);
91 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
92 extern int __must_check init_iolog(struct thread_data *td);
93 extern void log_io_piece(struct thread_data *, struct io_u *);
94 extern void queue_io_piece(struct thread_data *, struct io_piece *);
95 extern void prune_io_piece_log(struct thread_data *);
96 extern void write_iolog_close(struct thread_data *);
101 extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
103 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
105 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
107 extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
109 extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
110 extern void init_disk_util(struct thread_data *);
111 extern void update_rusage_stat(struct thread_data *);
112 extern void update_io_ticks(void);
113 extern void setup_log(struct io_log **, unsigned long);
114 extern void finish_log(struct thread_data *, struct io_log *, const char *);
115 extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
116 extern void __finish_log(struct io_log *, const char *);
117 extern struct io_log *agg_io_log[2];
118 extern int write_bw_log;
119 extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
121 static inline void init_ipo(struct io_piece *ipo)
123 memset(ipo, 0, sizeof(*ipo));
124 INIT_FLIST_HEAD(&ipo->trim_list);