4 #include "lib/ieee754.h"
7 * Use for maintaining statistics
19 * A single data sample
29 * Dynamically growing data sample log
33 * Entries already logged
35 unsigned long nr_samples;
36 unsigned long max_samples;
37 struct io_sample *log;
40 * Windowed average, for logging single entries average over some
43 struct io_stat avg_window[2];
44 unsigned long avg_msec;
45 unsigned long avg_last;
55 * When logging io actions, this matches a single sent io_u
59 struct rb_node rb_node;
60 struct flist_head list;
62 struct flist_head trim_list;
65 struct fio_file *file;
67 unsigned long long offset;
73 unsigned int file_action;
87 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
88 extern void log_io_u(struct thread_data *, struct io_u *);
89 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
90 extern int __must_check init_iolog(struct thread_data *td);
91 extern void log_io_piece(struct thread_data *, struct io_u *);
92 extern void queue_io_piece(struct thread_data *, struct io_piece *);
93 extern void prune_io_piece_log(struct thread_data *);
94 extern void write_iolog_close(struct thread_data *);
99 extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
101 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
103 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
105 extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
107 extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
108 extern void init_disk_util(struct thread_data *);
109 extern void update_rusage_stat(struct thread_data *);
110 extern void update_io_ticks(void);
111 extern void setup_log(struct io_log **, unsigned long);
112 extern void finish_log(struct thread_data *, struct io_log *, const char *);
113 extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
114 extern void __finish_log(struct io_log *, const char *);
115 extern struct io_log *agg_io_log[2];
116 extern int write_bw_log;
117 extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
119 static inline void init_ipo(struct io_piece *ipo)
121 memset(ipo, 0, sizeof(*ipo));
122 INIT_FLIST_HEAD(&ipo->trim_list);