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5995a6a4 JA |
1 | #ifndef FIO_IOLOG_H |
2 | #define FIO_IOLOG_H | |
3 | ||
05775438 | 4 | #include "lib/rbtree.h" |
c7c6cb4c | 5 | #include "lib/ieee754.h" |
836fcc0f | 6 | #include "flist.h" |
ec41265e | 7 | #include "ioengine.h" |
802ad4a8 | 8 | |
5995a6a4 JA |
9 | /* |
10 | * Use for maintaining statistics | |
11 | */ | |
12 | struct io_stat { | |
7b9f733a JA |
13 | uint64_t max_val; |
14 | uint64_t min_val; | |
15 | uint64_t samples; | |
5995a6a4 | 16 | |
802ad4a8 JA |
17 | fio_fp64_t mean; |
18 | fio_fp64_t S; | |
5995a6a4 JA |
19 | }; |
20 | ||
21 | /* | |
22 | * A single data sample | |
23 | */ | |
24 | struct io_sample { | |
1b42725f JA |
25 | uint64_t time; |
26 | uint64_t val; | |
b26317c9 | 27 | uint32_t __ddir; |
1b42725f | 28 | uint32_t bs; |
5995a6a4 JA |
29 | }; |
30 | ||
ae588852 JA |
31 | struct io_sample_offset { |
32 | struct io_sample s; | |
33 | uint64_t offset; | |
34 | }; | |
35 | ||
ea51b956 JA |
36 | enum { |
37 | IO_LOG_TYPE_LAT = 1, | |
38 | IO_LOG_TYPE_CLAT, | |
39 | IO_LOG_TYPE_SLAT, | |
40 | IO_LOG_TYPE_BW, | |
41 | IO_LOG_TYPE_IOPS, | |
42 | }; | |
43 | ||
5995a6a4 JA |
44 | /* |
45 | * Dynamically growing data sample log | |
46 | */ | |
47 | struct io_log { | |
b8bc8cba JA |
48 | /* |
49 | * Entries already logged | |
50 | */ | |
3c865f32 JA |
51 | uint64_t nr_samples; |
52 | uint64_t max_samples; | |
ae588852 | 53 | void *log; |
b8bc8cba | 54 | |
b26317c9 JA |
55 | unsigned int log_ddir_mask; |
56 | ||
cb7e0ace JA |
57 | char *filename; |
58 | ||
aee2ab67 JA |
59 | struct thread_data *td; |
60 | ||
1b42725f | 61 | unsigned int log_type; |
ea51b956 | 62 | |
3c568239 JA |
63 | /* |
64 | * If we fail extending the log, stop collecting more entries. | |
65 | */ | |
66 | unsigned int disabled; | |
67 | ||
ae588852 JA |
68 | /* |
69 | * Log offsets | |
70 | */ | |
71 | unsigned int log_offset; | |
72 | ||
aee2ab67 JA |
73 | /* |
74 | * Max size of log entries before a chunk is compressed | |
75 | */ | |
76 | unsigned int log_gz; | |
77 | ||
b26317c9 JA |
78 | /* |
79 | * Don't deflate for storing, just store the compressed bits | |
80 | */ | |
81 | unsigned int log_gz_store; | |
82 | ||
b8bc8cba JA |
83 | /* |
84 | * Windowed average, for logging single entries average over some | |
85 | * period of time. | |
86 | */ | |
6eaf09d6 | 87 | struct io_stat avg_window[DDIR_RWDIR_CNT]; |
b8bc8cba JA |
88 | unsigned long avg_msec; |
89 | unsigned long avg_last; | |
aee2ab67 JA |
90 | |
91 | pthread_mutex_t chunk_lock; | |
92 | unsigned int chunk_seq; | |
93 | struct flist_head chunk_list; | |
5995a6a4 JA |
94 | }; |
95 | ||
49e98daa JA |
96 | /* |
97 | * If the upper bit is set, then we have the offset as well | |
98 | */ | |
99 | #define LOG_OFFSET_SAMPLE_BIT 0x80000000U | |
100 | #define io_sample_ddir(io) ((io)->__ddir & ~LOG_OFFSET_SAMPLE_BIT) | |
b26317c9 JA |
101 | |
102 | static inline void io_sample_set_ddir(struct io_log *log, | |
103 | struct io_sample *io, | |
104 | enum fio_ddir ddir) | |
105 | { | |
106 | io->__ddir = ddir | log->log_ddir_mask; | |
107 | } | |
108 | ||
ae588852 JA |
109 | static inline size_t __log_entry_sz(int log_offset) |
110 | { | |
111 | if (log_offset) | |
112 | return sizeof(struct io_sample_offset); | |
113 | else | |
114 | return sizeof(struct io_sample); | |
115 | } | |
116 | ||
117 | static inline size_t log_entry_sz(struct io_log *log) | |
118 | { | |
119 | return __log_entry_sz(log->log_offset); | |
120 | } | |
121 | ||
122 | static inline struct io_sample *__get_sample(void *samples, int log_offset, | |
123 | uint64_t sample) | |
124 | { | |
6f9bbb55 CB |
125 | uint64_t sample_offset = sample * __log_entry_sz(log_offset); |
126 | return (struct io_sample *) ((char *) samples + sample_offset); | |
ae588852 JA |
127 | } |
128 | ||
129 | static inline struct io_sample *get_sample(struct io_log *iolog, | |
130 | uint64_t sample) | |
131 | { | |
132 | return __get_sample(iolog->log, iolog->log_offset, sample); | |
133 | } | |
134 | ||
0d29de83 JA |
135 | enum { |
136 | IP_F_ONRB = 1, | |
137 | IP_F_ONLIST = 2, | |
138 | IP_F_TRIMMED = 4, | |
f9401285 | 139 | IP_F_IN_FLIGHT = 8, |
0d29de83 JA |
140 | }; |
141 | ||
5995a6a4 JA |
142 | /* |
143 | * When logging io actions, this matches a single sent io_u | |
144 | */ | |
145 | struct io_piece { | |
146 | union { | |
147 | struct rb_node rb_node; | |
148 | struct flist_head list; | |
149 | }; | |
0d29de83 | 150 | struct flist_head trim_list; |
5995a6a4 JA |
151 | union { |
152 | int fileno; | |
153 | struct fio_file *file; | |
154 | }; | |
155 | unsigned long long offset; | |
da0a7bd2 | 156 | unsigned short numberio; |
5995a6a4 | 157 | unsigned long len; |
a917a8b3 | 158 | unsigned int flags; |
5995a6a4 JA |
159 | enum fio_ddir ddir; |
160 | union { | |
161 | unsigned long delay; | |
162 | unsigned int file_action; | |
163 | }; | |
164 | }; | |
165 | ||
166 | /* | |
167 | * Log exports | |
168 | */ | |
169 | enum file_log_act { | |
170 | FIO_LOG_ADD_FILE, | |
171 | FIO_LOG_OPEN_FILE, | |
172 | FIO_LOG_CLOSE_FILE, | |
173 | FIO_LOG_UNLINK_FILE, | |
174 | }; | |
175 | ||
8062f527 | 176 | struct io_u; |
5995a6a4 | 177 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
1f440ece | 178 | extern void log_io_u(const struct thread_data *, const struct io_u *); |
5995a6a4 JA |
179 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); |
180 | extern int __must_check init_iolog(struct thread_data *td); | |
181 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
890b6656 | 182 | extern void unlog_io_piece(struct thread_data *, struct io_u *); |
1f440ece | 183 | extern void trim_io_piece(struct thread_data *, const struct io_u *); |
5995a6a4 JA |
184 | extern void queue_io_piece(struct thread_data *, struct io_piece *); |
185 | extern void prune_io_piece_log(struct thread_data *); | |
186 | extern void write_iolog_close(struct thread_data *); | |
155f2f02 JA |
187 | extern int iolog_compress_init(struct thread_data *); |
188 | extern void iolog_compress_exit(struct thread_data *); | |
5995a6a4 | 189 | |
b26317c9 JA |
190 | #ifdef CONFIG_ZLIB |
191 | extern int iolog_file_inflate(const char *); | |
192 | #endif | |
193 | ||
5995a6a4 JA |
194 | /* |
195 | * Logging | |
196 | */ | |
aee2ab67 JA |
197 | struct log_params { |
198 | struct thread_data *td; | |
199 | unsigned long avg_msec; | |
200 | int log_type; | |
201 | int log_offset; | |
202 | int log_gz; | |
b26317c9 | 203 | int log_gz_store; |
aee2ab67 JA |
204 | int log_compress; |
205 | }; | |
206 | ||
99007068 | 207 | extern void finalize_logs(struct thread_data *td); |
aee2ab67 | 208 | extern void setup_log(struct io_log **, struct log_params *, const char *); |
3a5db920 | 209 | extern void flush_log(struct io_log *, int); |
518dac09 | 210 | extern void free_log(struct io_log *); |
905e3d4f | 211 | extern void fio_writeout_logs(struct thread_data *); |
aee2ab67 | 212 | extern int iolog_flush(struct io_log *, int); |
5995a6a4 | 213 | |
0d29de83 JA |
214 | static inline void init_ipo(struct io_piece *ipo) |
215 | { | |
216 | memset(ipo, 0, sizeof(*ipo)); | |
217 | INIT_FLIST_HEAD(&ipo->trim_list); | |
218 | } | |
219 | ||
5995a6a4 | 220 | #endif |