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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 | ||
47 | #define LOG_QUIESCE_SZ (64 * 1024 * 1024) | |
48 | ||
49 | struct io_logs { | |
50 | struct flist_head list; | |
51 | uint64_t nr_samples; | |
52 | uint64_t max_samples; | |
53 | void *log; | |
54 | }; | |
6d37f67f | 55 | |
5995a6a4 JA |
56 | /* |
57 | * Dynamically growing data sample log | |
58 | */ | |
59 | struct io_log { | |
b8bc8cba JA |
60 | /* |
61 | * Entries already logged | |
62 | */ | |
7e419452 JA |
63 | struct flist_head io_logs; |
64 | uint32_t cur_log_max; | |
b8bc8cba | 65 | |
1fed2080 JA |
66 | /* |
67 | * When the current log runs out of space, store events here until | |
68 | * we have a chance to regrow | |
69 | */ | |
70 | struct io_logs *pending; | |
71 | ||
b26317c9 JA |
72 | unsigned int log_ddir_mask; |
73 | ||
cb7e0ace JA |
74 | char *filename; |
75 | ||
aee2ab67 JA |
76 | struct thread_data *td; |
77 | ||
1b42725f | 78 | unsigned int log_type; |
ea51b956 | 79 | |
3c568239 JA |
80 | /* |
81 | * If we fail extending the log, stop collecting more entries. | |
82 | */ | |
7e419452 | 83 | bool disabled; |
3c568239 | 84 | |
ae588852 JA |
85 | /* |
86 | * Log offsets | |
87 | */ | |
88 | unsigned int log_offset; | |
89 | ||
aee2ab67 JA |
90 | /* |
91 | * Max size of log entries before a chunk is compressed | |
92 | */ | |
93 | unsigned int log_gz; | |
94 | ||
b26317c9 JA |
95 | /* |
96 | * Don't deflate for storing, just store the compressed bits | |
97 | */ | |
98 | unsigned int log_gz_store; | |
99 | ||
b8bc8cba JA |
100 | /* |
101 | * Windowed average, for logging single entries average over some | |
102 | * period of time. | |
103 | */ | |
6eaf09d6 | 104 | struct io_stat avg_window[DDIR_RWDIR_CNT]; |
b8bc8cba JA |
105 | unsigned long avg_msec; |
106 | unsigned long avg_last; | |
aee2ab67 JA |
107 | |
108 | pthread_mutex_t chunk_lock; | |
109 | unsigned int chunk_seq; | |
110 | struct flist_head chunk_list; | |
5995a6a4 JA |
111 | }; |
112 | ||
49e98daa JA |
113 | /* |
114 | * If the upper bit is set, then we have the offset as well | |
115 | */ | |
116 | #define LOG_OFFSET_SAMPLE_BIT 0x80000000U | |
117 | #define io_sample_ddir(io) ((io)->__ddir & ~LOG_OFFSET_SAMPLE_BIT) | |
b26317c9 JA |
118 | |
119 | static inline void io_sample_set_ddir(struct io_log *log, | |
120 | struct io_sample *io, | |
121 | enum fio_ddir ddir) | |
122 | { | |
123 | io->__ddir = ddir | log->log_ddir_mask; | |
124 | } | |
125 | ||
ae588852 JA |
126 | static inline size_t __log_entry_sz(int log_offset) |
127 | { | |
128 | if (log_offset) | |
129 | return sizeof(struct io_sample_offset); | |
130 | else | |
131 | return sizeof(struct io_sample); | |
132 | } | |
133 | ||
134 | static inline size_t log_entry_sz(struct io_log *log) | |
135 | { | |
136 | return __log_entry_sz(log->log_offset); | |
137 | } | |
138 | ||
139 | static inline struct io_sample *__get_sample(void *samples, int log_offset, | |
140 | uint64_t sample) | |
141 | { | |
6f9bbb55 CB |
142 | uint64_t sample_offset = sample * __log_entry_sz(log_offset); |
143 | return (struct io_sample *) ((char *) samples + sample_offset); | |
ae588852 JA |
144 | } |
145 | ||
7e419452 JA |
146 | struct io_logs *iolog_cur_log(struct io_log *); |
147 | uint64_t iolog_nr_samples(struct io_log *); | |
1fed2080 | 148 | void regrow_logs(struct thread_data *); |
7e419452 | 149 | |
ae588852 | 150 | static inline struct io_sample *get_sample(struct io_log *iolog, |
7e419452 | 151 | struct io_logs *cur_log, |
ae588852 JA |
152 | uint64_t sample) |
153 | { | |
7e419452 | 154 | return __get_sample(cur_log->log, iolog->log_offset, sample); |
ae588852 JA |
155 | } |
156 | ||
0d29de83 JA |
157 | enum { |
158 | IP_F_ONRB = 1, | |
159 | IP_F_ONLIST = 2, | |
160 | IP_F_TRIMMED = 4, | |
f9401285 | 161 | IP_F_IN_FLIGHT = 8, |
0d29de83 JA |
162 | }; |
163 | ||
5995a6a4 JA |
164 | /* |
165 | * When logging io actions, this matches a single sent io_u | |
166 | */ | |
167 | struct io_piece { | |
168 | union { | |
169 | struct rb_node rb_node; | |
170 | struct flist_head list; | |
171 | }; | |
0d29de83 | 172 | struct flist_head trim_list; |
5995a6a4 JA |
173 | union { |
174 | int fileno; | |
175 | struct fio_file *file; | |
176 | }; | |
177 | unsigned long long offset; | |
da0a7bd2 | 178 | unsigned short numberio; |
5995a6a4 | 179 | unsigned long len; |
a917a8b3 | 180 | unsigned int flags; |
5995a6a4 JA |
181 | enum fio_ddir ddir; |
182 | union { | |
183 | unsigned long delay; | |
184 | unsigned int file_action; | |
185 | }; | |
186 | }; | |
187 | ||
188 | /* | |
189 | * Log exports | |
190 | */ | |
191 | enum file_log_act { | |
192 | FIO_LOG_ADD_FILE, | |
193 | FIO_LOG_OPEN_FILE, | |
194 | FIO_LOG_CLOSE_FILE, | |
195 | FIO_LOG_UNLINK_FILE, | |
196 | }; | |
197 | ||
8062f527 | 198 | struct io_u; |
5995a6a4 | 199 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
1f440ece | 200 | extern void log_io_u(const struct thread_data *, const struct io_u *); |
5995a6a4 JA |
201 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); |
202 | extern int __must_check init_iolog(struct thread_data *td); | |
203 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
890b6656 | 204 | extern void unlog_io_piece(struct thread_data *, struct io_u *); |
1f440ece | 205 | extern void trim_io_piece(struct thread_data *, const struct io_u *); |
5995a6a4 JA |
206 | extern void queue_io_piece(struct thread_data *, struct io_piece *); |
207 | extern void prune_io_piece_log(struct thread_data *); | |
208 | extern void write_iolog_close(struct thread_data *); | |
24660963 | 209 | extern int iolog_compress_init(struct thread_data *, struct sk_out *); |
155f2f02 | 210 | extern void iolog_compress_exit(struct thread_data *); |
0cba0f91 | 211 | extern size_t log_chunk_sizes(struct io_log *); |
5995a6a4 | 212 | |
b26317c9 JA |
213 | #ifdef CONFIG_ZLIB |
214 | extern int iolog_file_inflate(const char *); | |
215 | #endif | |
216 | ||
5995a6a4 JA |
217 | /* |
218 | * Logging | |
219 | */ | |
aee2ab67 JA |
220 | struct log_params { |
221 | struct thread_data *td; | |
222 | unsigned long avg_msec; | |
223 | int log_type; | |
224 | int log_offset; | |
225 | int log_gz; | |
b26317c9 | 226 | int log_gz_store; |
aee2ab67 JA |
227 | int log_compress; |
228 | }; | |
229 | ||
a47591e4 JA |
230 | static inline bool per_unit_log(struct io_log *log) |
231 | { | |
232 | return log && !log->avg_msec; | |
233 | } | |
234 | ||
235 | extern void finalize_logs(struct thread_data *td, bool); | |
aee2ab67 | 236 | extern void setup_log(struct io_log **, struct log_params *, const char *); |
3a5db920 | 237 | extern void flush_log(struct io_log *, int); |
bead01d7 | 238 | extern void flush_samples(FILE *, void *, uint64_t); |
518dac09 | 239 | extern void free_log(struct io_log *); |
a47591e4 JA |
240 | extern void fio_writeout_logs(bool); |
241 | extern void td_writeout_logs(struct thread_data *, bool); | |
7e419452 | 242 | extern int iolog_cur_flush(struct io_log *, struct io_logs *); |
5995a6a4 | 243 | |
0d29de83 JA |
244 | static inline void init_ipo(struct io_piece *ipo) |
245 | { | |
246 | memset(ipo, 0, sizeof(*ipo)); | |
247 | INIT_FLIST_HEAD(&ipo->trim_list); | |
248 | } | |
249 | ||
0cba0f91 JA |
250 | struct iolog_compress { |
251 | struct flist_head list; | |
252 | void *buf; | |
253 | size_t len; | |
254 | unsigned int seq; | |
255 | }; | |
256 | ||
5995a6a4 | 257 | #endif |