| #ifndef FIO_IOLOG_H |
| #define FIO_IOLOG_H |
| |
| /* |
| * Use for maintaining statistics |
| */ |
| struct io_stat { |
| uint64_t max_val; |
| uint64_t min_val; |
| uint64_t samples; |
| |
| double mean; |
| double S; |
| }; |
| |
| /* |
| * A single data sample |
| */ |
| struct io_sample { |
| unsigned long time; |
| unsigned long val; |
| enum fio_ddir ddir; |
| unsigned int bs; |
| }; |
| |
| /* |
| * Dynamically growing data sample log |
| */ |
| struct io_log { |
| unsigned long nr_samples; |
| unsigned long max_samples; |
| struct io_sample *log; |
| }; |
| |
| enum { |
| IP_F_ONRB = 1, |
| IP_F_ONLIST = 2, |
| IP_F_TRIMMED = 4, |
| }; |
| |
| /* |
| * When logging io actions, this matches a single sent io_u |
| */ |
| struct io_piece { |
| union { |
| struct rb_node rb_node; |
| struct flist_head list; |
| }; |
| struct flist_head trim_list; |
| union { |
| int fileno; |
| struct fio_file *file; |
| }; |
| unsigned long long offset; |
| unsigned long len; |
| unsigned int flags; |
| enum fio_ddir ddir; |
| union { |
| unsigned long delay; |
| unsigned int file_action; |
| }; |
| }; |
| |
| /* |
| * Log exports |
| */ |
| enum file_log_act { |
| FIO_LOG_ADD_FILE, |
| FIO_LOG_OPEN_FILE, |
| FIO_LOG_CLOSE_FILE, |
| FIO_LOG_UNLINK_FILE, |
| }; |
| |
| extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
| extern void log_io_u(struct thread_data *, struct io_u *); |
| extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); |
| extern int __must_check init_iolog(struct thread_data *td); |
| extern void log_io_piece(struct thread_data *, struct io_u *); |
| extern void queue_io_piece(struct thread_data *, struct io_piece *); |
| extern void prune_io_piece_log(struct thread_data *); |
| extern void write_iolog_close(struct thread_data *); |
| |
| /* |
| * Logging |
| */ |
| extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
| unsigned int); |
| extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
| unsigned int); |
| extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
| unsigned int); |
| extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int, |
| struct timeval *); |
| extern void show_run_stats(void); |
| extern void init_disk_util(struct thread_data *); |
| extern void update_rusage_stat(struct thread_data *); |
| extern void update_io_ticks(void); |
| extern void setup_log(struct io_log **); |
| extern void finish_log(struct thread_data *, struct io_log *, const char *); |
| extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *); |
| extern void __finish_log(struct io_log *, const char *); |
| extern struct io_log *agg_io_log[2]; |
| extern int write_bw_log; |
| extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int); |
| |
| static inline void init_ipo(struct io_piece *ipo) |
| { |
| memset(ipo, 0, sizeof(*ipo)); |
| INIT_FLIST_HEAD(&ipo->trim_list); |
| } |
| |
| #endif |