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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 | ||
35 | /* | |
36 | * When logging io actions, this matches a single sent io_u | |
37 | */ | |
38 | struct io_piece { | |
39 | union { | |
40 | struct rb_node rb_node; | |
41 | struct flist_head list; | |
42 | }; | |
43 | union { | |
44 | int fileno; | |
45 | struct fio_file *file; | |
46 | }; | |
47 | unsigned long long offset; | |
48 | unsigned long len; | |
49 | enum fio_ddir ddir; | |
50 | union { | |
51 | unsigned long delay; | |
52 | unsigned int file_action; | |
53 | }; | |
54 | }; | |
55 | ||
56 | /* | |
57 | * Log exports | |
58 | */ | |
59 | enum file_log_act { | |
60 | FIO_LOG_ADD_FILE, | |
61 | FIO_LOG_OPEN_FILE, | |
62 | FIO_LOG_CLOSE_FILE, | |
63 | FIO_LOG_UNLINK_FILE, | |
64 | }; | |
65 | ||
66 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); | |
67 | extern void log_io_u(struct thread_data *, struct io_u *); | |
68 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); | |
69 | extern int __must_check init_iolog(struct thread_data *td); | |
70 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
71 | extern void queue_io_piece(struct thread_data *, struct io_piece *); | |
72 | extern void prune_io_piece_log(struct thread_data *); | |
73 | extern void write_iolog_close(struct thread_data *); | |
74 | ||
75 | /* | |
76 | * Logging | |
77 | */ | |
02af0988 JA |
78 | extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
79 | unsigned int); | |
5995a6a4 JA |
80 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
81 | unsigned int); | |
82 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, | |
83 | unsigned int); | |
84 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int, | |
85 | struct timeval *); | |
86 | extern void show_run_stats(void); | |
87 | extern void init_disk_util(struct thread_data *); | |
88 | extern void update_rusage_stat(struct thread_data *); | |
89 | extern void update_io_ticks(void); | |
90 | extern void setup_log(struct io_log **); | |
91 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
92 | extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *); | |
93 | extern void __finish_log(struct io_log *, const char *); | |
94 | extern struct io_log *agg_io_log[2]; | |
95 | extern int write_bw_log; | |
96 | extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int); | |
97 | ||
98 | #endif |