projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| 5995a6a4 JA |
1 | #ifndef FIO_IOLOG_H |
| 2 | #define FIO_IOLOG_H | |
| 3 | ||
| 4 | /* | |
| 5 | * Use for maintaining statistics | |
| 6 | */ | |
| 7 | struct io_stat { | |
| 8 | unsigned long max_val; | |
| 9 | unsigned long min_val; | |
| 10 | unsigned long samples; | |
| 11 | ||
| 12 | double mean; | |
| 13 | double S; | |
| 14 | }; | |
| 15 | ||
| 16 | /* | |
| 17 | * A single data sample | |
| 18 | */ | |
| 19 | struct io_sample { | |
| 20 | unsigned long time; | |
| 21 | unsigned long val; | |
| 22 | enum fio_ddir ddir; | |
| 23 | unsigned int bs; | |
| 24 | }; | |
| 25 | ||
| 26 | /* | |
| 27 | * Dynamically growing data sample log | |
| 28 | */ | |
| 29 | struct io_log { | |
| 30 | unsigned long nr_samples; | |
| 31 | unsigned long max_samples; | |
| 32 | struct io_sample *log; | |
| 33 | }; | |
| 34 | ||
| 0d29de83 JA |
35 | enum { |
| 36 | IP_F_ONRB = 1, | |
| 37 | IP_F_ONLIST = 2, | |
| 38 | IP_F_TRIMMED = 4, | |
| 39 | }; | |
| 40 | ||
| 5995a6a4 JA |
41 | /* |
| 42 | * When logging io actions, this matches a single sent io_u | |
| 43 | */ | |
| 44 | struct io_piece { | |
| 45 | union { | |
| 46 | struct rb_node rb_node; | |
| 47 | struct flist_head list; | |
| 48 | }; | |
| 0d29de83 | 49 | struct flist_head trim_list; |
| 5995a6a4 JA |
50 | union { |
| 51 | int fileno; | |
| 52 | struct fio_file *file; | |
| 53 | }; | |
| 54 | unsigned long long offset; | |
| 55 | unsigned long len; | |
| a917a8b3 | 56 | unsigned int flags; |
| 5995a6a4 JA |
57 | enum fio_ddir ddir; |
| 58 | union { | |
| 59 | unsigned long delay; | |
| 60 | unsigned int file_action; | |
| 61 | }; | |
| 62 | }; | |
| 63 | ||
| 64 | /* | |
| 65 | * Log exports | |
| 66 | */ | |
| 67 | enum file_log_act { | |
| 68 | FIO_LOG_ADD_FILE, | |
| 69 | FIO_LOG_OPEN_FILE, | |
| 70 | FIO_LOG_CLOSE_FILE, | |
| 71 | FIO_LOG_UNLINK_FILE, | |
| 72 | }; | |
| 73 | ||
| 74 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); | |
| 75 | extern void log_io_u(struct thread_data *, struct io_u *); | |
| 76 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); | |
| 77 | extern int __must_check init_iolog(struct thread_data *td); | |
| 78 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
| 79 | extern void queue_io_piece(struct thread_data *, struct io_piece *); | |
| 80 | extern void prune_io_piece_log(struct thread_data *); | |
| 81 | extern void write_iolog_close(struct thread_data *); | |
| 82 | ||
| 83 | /* | |
| 84 | * Logging | |
| 85 | */ | |
| 02af0988 JA |
86 | extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
| 87 | unsigned int); | |
| 5995a6a4 JA |
88 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
| 89 | unsigned int); | |
| 90 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, | |
| 91 | unsigned int); | |
| 92 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int, | |
| 93 | struct timeval *); | |
| 94 | extern void show_run_stats(void); | |
| 95 | extern void init_disk_util(struct thread_data *); | |
| 96 | extern void update_rusage_stat(struct thread_data *); | |
| 97 | extern void update_io_ticks(void); | |
| 98 | extern void setup_log(struct io_log **); | |
| 99 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
| 100 | extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *); | |
| 101 | extern void __finish_log(struct io_log *, const char *); | |
| 102 | extern struct io_log *agg_io_log[2]; | |
| 103 | extern int write_bw_log; | |
| 104 | extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int); | |
| 105 | ||
| 0d29de83 JA |
106 | static inline void init_ipo(struct io_piece *ipo) |
| 107 | { | |
| 108 | memset(ipo, 0, sizeof(*ipo)); | |
| 109 | INIT_FLIST_HEAD(&ipo->trim_list); | |
| 110 | } | |
| 111 | ||
| 5995a6a4 | 112 | #endif |