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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 | ||
6d37f67f | 44 | #define DEF_LOG_ENTRIES 1024 |
7e419452 JA |
45 | #define MAX_LOG_ENTRIES (1024 * DEF_LOG_ENTRIES) |
46 | ||
7e419452 JA |
47 | struct io_logs { |
48 | struct flist_head list; | |
49 | uint64_t nr_samples; | |
50 | uint64_t max_samples; | |
51 | void *log; | |
52 | }; | |
6d37f67f | 53 | |
5995a6a4 JA |
54 | /* |
55 | * Dynamically growing data sample log | |
56 | */ | |
57 | struct io_log { | |
b8bc8cba JA |
58 | /* |
59 | * Entries already logged | |
60 | */ | |
7e419452 JA |
61 | struct flist_head io_logs; |
62 | uint32_t cur_log_max; | |
b8bc8cba | 63 | |
1fed2080 JA |
64 | /* |
65 | * When the current log runs out of space, store events here until | |
66 | * we have a chance to regrow | |
67 | */ | |
68 | struct io_logs *pending; | |
69 | ||
b26317c9 JA |
70 | unsigned int log_ddir_mask; |
71 | ||
cb7e0ace JA |
72 | char *filename; |
73 | ||
aee2ab67 JA |
74 | struct thread_data *td; |
75 | ||
1b42725f | 76 | unsigned int log_type; |
ea51b956 | 77 | |
3c568239 JA |
78 | /* |
79 | * If we fail extending the log, stop collecting more entries. | |
80 | */ | |
7e419452 | 81 | bool disabled; |
3c568239 | 82 | |
ae588852 JA |
83 | /* |
84 | * Log offsets | |
85 | */ | |
86 | unsigned int log_offset; | |
87 | ||
aee2ab67 JA |
88 | /* |
89 | * Max size of log entries before a chunk is compressed | |
90 | */ | |
91 | unsigned int log_gz; | |
92 | ||
b26317c9 JA |
93 | /* |
94 | * Don't deflate for storing, just store the compressed bits | |
95 | */ | |
96 | unsigned int log_gz_store; | |
97 | ||
b8bc8cba JA |
98 | /* |
99 | * Windowed average, for logging single entries average over some | |
100 | * period of time. | |
101 | */ | |
6eaf09d6 | 102 | struct io_stat avg_window[DDIR_RWDIR_CNT]; |
b8bc8cba JA |
103 | unsigned long avg_msec; |
104 | unsigned long avg_last; | |
aee2ab67 JA |
105 | |
106 | pthread_mutex_t chunk_lock; | |
107 | unsigned int chunk_seq; | |
108 | struct flist_head chunk_list; | |
5995a6a4 JA |
109 | }; |
110 | ||
49e98daa JA |
111 | /* |
112 | * If the upper bit is set, then we have the offset as well | |
113 | */ | |
114 | #define LOG_OFFSET_SAMPLE_BIT 0x80000000U | |
115 | #define io_sample_ddir(io) ((io)->__ddir & ~LOG_OFFSET_SAMPLE_BIT) | |
b26317c9 JA |
116 | |
117 | static inline void io_sample_set_ddir(struct io_log *log, | |
118 | struct io_sample *io, | |
119 | enum fio_ddir ddir) | |
120 | { | |
121 | io->__ddir = ddir | log->log_ddir_mask; | |
122 | } | |
123 | ||
ae588852 JA |
124 | static inline size_t __log_entry_sz(int log_offset) |
125 | { | |
126 | if (log_offset) | |
127 | return sizeof(struct io_sample_offset); | |
128 | else | |
129 | return sizeof(struct io_sample); | |
130 | } | |
131 | ||
132 | static inline size_t log_entry_sz(struct io_log *log) | |
133 | { | |
134 | return __log_entry_sz(log->log_offset); | |
135 | } | |
136 | ||
137 | static inline struct io_sample *__get_sample(void *samples, int log_offset, | |
138 | uint64_t sample) | |
139 | { | |
6f9bbb55 CB |
140 | uint64_t sample_offset = sample * __log_entry_sz(log_offset); |
141 | return (struct io_sample *) ((char *) samples + sample_offset); | |
ae588852 JA |
142 | } |
143 | ||
7e419452 JA |
144 | struct io_logs *iolog_cur_log(struct io_log *); |
145 | uint64_t iolog_nr_samples(struct io_log *); | |
1fed2080 | 146 | void regrow_logs(struct thread_data *); |
7e419452 | 147 | |
ae588852 | 148 | static inline struct io_sample *get_sample(struct io_log *iolog, |
7e419452 | 149 | struct io_logs *cur_log, |
ae588852 JA |
150 | uint64_t sample) |
151 | { | |
7e419452 | 152 | return __get_sample(cur_log->log, iolog->log_offset, sample); |
ae588852 JA |
153 | } |
154 | ||
0d29de83 JA |
155 | enum { |
156 | IP_F_ONRB = 1, | |
157 | IP_F_ONLIST = 2, | |
158 | IP_F_TRIMMED = 4, | |
f9401285 | 159 | IP_F_IN_FLIGHT = 8, |
0d29de83 JA |
160 | }; |
161 | ||
5995a6a4 JA |
162 | /* |
163 | * When logging io actions, this matches a single sent io_u | |
164 | */ | |
165 | struct io_piece { | |
166 | union { | |
167 | struct rb_node rb_node; | |
168 | struct flist_head list; | |
169 | }; | |
0d29de83 | 170 | struct flist_head trim_list; |
5995a6a4 JA |
171 | union { |
172 | int fileno; | |
173 | struct fio_file *file; | |
174 | }; | |
175 | unsigned long long offset; | |
da0a7bd2 | 176 | unsigned short numberio; |
5995a6a4 | 177 | unsigned long len; |
a917a8b3 | 178 | unsigned int flags; |
5995a6a4 JA |
179 | enum fio_ddir ddir; |
180 | union { | |
181 | unsigned long delay; | |
182 | unsigned int file_action; | |
183 | }; | |
184 | }; | |
185 | ||
186 | /* | |
187 | * Log exports | |
188 | */ | |
189 | enum file_log_act { | |
190 | FIO_LOG_ADD_FILE, | |
191 | FIO_LOG_OPEN_FILE, | |
192 | FIO_LOG_CLOSE_FILE, | |
193 | FIO_LOG_UNLINK_FILE, | |
194 | }; | |
195 | ||
8062f527 | 196 | struct io_u; |
5995a6a4 | 197 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
1f440ece | 198 | extern void log_io_u(const struct thread_data *, const struct io_u *); |
5995a6a4 JA |
199 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); |
200 | extern int __must_check init_iolog(struct thread_data *td); | |
201 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
890b6656 | 202 | extern void unlog_io_piece(struct thread_data *, struct io_u *); |
1f440ece | 203 | extern void trim_io_piece(struct thread_data *, const struct io_u *); |
5995a6a4 JA |
204 | extern void queue_io_piece(struct thread_data *, struct io_piece *); |
205 | extern void prune_io_piece_log(struct thread_data *); | |
206 | extern void write_iolog_close(struct thread_data *); | |
24660963 | 207 | extern int iolog_compress_init(struct thread_data *, struct sk_out *); |
155f2f02 | 208 | extern void iolog_compress_exit(struct thread_data *); |
0cba0f91 | 209 | extern size_t log_chunk_sizes(struct io_log *); |
5995a6a4 | 210 | |
b26317c9 JA |
211 | #ifdef CONFIG_ZLIB |
212 | extern int iolog_file_inflate(const char *); | |
213 | #endif | |
214 | ||
5995a6a4 JA |
215 | /* |
216 | * Logging | |
217 | */ | |
aee2ab67 JA |
218 | struct log_params { |
219 | struct thread_data *td; | |
220 | unsigned long avg_msec; | |
221 | int log_type; | |
222 | int log_offset; | |
223 | int log_gz; | |
b26317c9 | 224 | int log_gz_store; |
aee2ab67 JA |
225 | int log_compress; |
226 | }; | |
227 | ||
a47591e4 JA |
228 | static inline bool per_unit_log(struct io_log *log) |
229 | { | |
230 | return log && !log->avg_msec; | |
231 | } | |
232 | ||
233 | extern void finalize_logs(struct thread_data *td, bool); | |
aee2ab67 | 234 | extern void setup_log(struct io_log **, struct log_params *, const char *); |
3a5db920 | 235 | extern void flush_log(struct io_log *, int); |
bead01d7 | 236 | extern void flush_samples(FILE *, void *, uint64_t); |
518dac09 | 237 | extern void free_log(struct io_log *); |
a47591e4 JA |
238 | extern void fio_writeout_logs(bool); |
239 | extern void td_writeout_logs(struct thread_data *, bool); | |
7e419452 | 240 | extern int iolog_cur_flush(struct io_log *, struct io_logs *); |
5995a6a4 | 241 | |
0d29de83 JA |
242 | static inline void init_ipo(struct io_piece *ipo) |
243 | { | |
244 | memset(ipo, 0, sizeof(*ipo)); | |
245 | INIT_FLIST_HEAD(&ipo->trim_list); | |
246 | } | |
247 | ||
0cba0f91 JA |
248 | struct iolog_compress { |
249 | struct flist_head list; | |
250 | void *buf; | |
251 | size_t len; | |
252 | unsigned int seq; | |
253 | }; | |
254 | ||
5995a6a4 | 255 | #endif |