4 #include "lib/rbtree.h"
5 #include "lib/ieee754.h"
10 * Use for maintaining statistics
22 * A single data sample
40 * Dynamically growing data sample log
44 * Entries already logged
46 unsigned long nr_samples;
47 unsigned long max_samples;
48 struct io_sample *log;
50 unsigned int log_type;
53 * If we fail extending the log, stop collecting more entries.
55 unsigned int disabled;
58 * Windowed average, for logging single entries average over some
61 struct io_stat avg_window[DDIR_RWDIR_CNT];
62 unsigned long avg_msec;
63 unsigned long avg_last;
74 * When logging io actions, this matches a single sent io_u
78 struct rb_node rb_node;
79 struct flist_head list;
81 struct flist_head trim_list;
84 struct fio_file *file;
86 unsigned long long offset;
87 unsigned short numberio;
93 unsigned int file_action;
108 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
109 extern void log_io_u(struct thread_data *, struct io_u *);
110 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
111 extern int __must_check init_iolog(struct thread_data *td);
112 extern void log_io_piece(struct thread_data *, struct io_u *);
113 extern void queue_io_piece(struct thread_data *, struct io_piece *);
114 extern void prune_io_piece_log(struct thread_data *);
115 extern void write_iolog_close(struct thread_data *);
120 extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
122 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
124 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
126 extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
128 extern void add_iops_sample(struct thread_data *, enum fio_ddir, unsigned int,
130 extern void init_disk_util(struct thread_data *);
131 extern void update_rusage_stat(struct thread_data *);
132 extern void setup_log(struct io_log **, unsigned long, int);
133 extern void finish_log(struct thread_data *, struct io_log *, const char *);
134 extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
135 extern void __finish_log(struct io_log *, const char *);
136 extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
137 extern int write_bw_log;
138 extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
140 static inline void init_ipo(struct io_piece *ipo)
142 memset(ipo, 0, sizeof(*ipo));
143 INIT_FLIST_HEAD(&ipo->trim_list);