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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 JA |
44 | #define DEF_LOG_ENTRIES 1024 |
45 | ||
5995a6a4 JA |
46 | /* |
47 | * Dynamically growing data sample log | |
48 | */ | |
49 | struct io_log { | |
b8bc8cba JA |
50 | /* |
51 | * Entries already logged | |
52 | */ | |
3c865f32 JA |
53 | uint64_t nr_samples; |
54 | uint64_t max_samples; | |
ae588852 | 55 | void *log; |
b8bc8cba | 56 | |
b26317c9 JA |
57 | unsigned int log_ddir_mask; |
58 | ||
cb7e0ace JA |
59 | char *filename; |
60 | ||
aee2ab67 JA |
61 | struct thread_data *td; |
62 | ||
1b42725f | 63 | unsigned int log_type; |
ea51b956 | 64 | |
3c568239 JA |
65 | /* |
66 | * If we fail extending the log, stop collecting more entries. | |
67 | */ | |
68 | unsigned int disabled; | |
69 | ||
ae588852 JA |
70 | /* |
71 | * Log offsets | |
72 | */ | |
73 | unsigned int log_offset; | |
74 | ||
aee2ab67 JA |
75 | /* |
76 | * Max size of log entries before a chunk is compressed | |
77 | */ | |
78 | unsigned int log_gz; | |
79 | ||
b26317c9 JA |
80 | /* |
81 | * Don't deflate for storing, just store the compressed bits | |
82 | */ | |
83 | unsigned int log_gz_store; | |
84 | ||
b8bc8cba JA |
85 | /* |
86 | * Windowed average, for logging single entries average over some | |
87 | * period of time. | |
88 | */ | |
6eaf09d6 | 89 | struct io_stat avg_window[DDIR_RWDIR_CNT]; |
b8bc8cba JA |
90 | unsigned long avg_msec; |
91 | unsigned long avg_last; | |
aee2ab67 JA |
92 | |
93 | pthread_mutex_t chunk_lock; | |
94 | unsigned int chunk_seq; | |
95 | struct flist_head chunk_list; | |
5995a6a4 JA |
96 | }; |
97 | ||
49e98daa JA |
98 | /* |
99 | * If the upper bit is set, then we have the offset as well | |
100 | */ | |
101 | #define LOG_OFFSET_SAMPLE_BIT 0x80000000U | |
102 | #define io_sample_ddir(io) ((io)->__ddir & ~LOG_OFFSET_SAMPLE_BIT) | |
b26317c9 JA |
103 | |
104 | static inline void io_sample_set_ddir(struct io_log *log, | |
105 | struct io_sample *io, | |
106 | enum fio_ddir ddir) | |
107 | { | |
108 | io->__ddir = ddir | log->log_ddir_mask; | |
109 | } | |
110 | ||
ae588852 JA |
111 | static inline size_t __log_entry_sz(int log_offset) |
112 | { | |
113 | if (log_offset) | |
114 | return sizeof(struct io_sample_offset); | |
115 | else | |
116 | return sizeof(struct io_sample); | |
117 | } | |
118 | ||
119 | static inline size_t log_entry_sz(struct io_log *log) | |
120 | { | |
121 | return __log_entry_sz(log->log_offset); | |
122 | } | |
123 | ||
124 | static inline struct io_sample *__get_sample(void *samples, int log_offset, | |
125 | uint64_t sample) | |
126 | { | |
6f9bbb55 CB |
127 | uint64_t sample_offset = sample * __log_entry_sz(log_offset); |
128 | return (struct io_sample *) ((char *) samples + sample_offset); | |
ae588852 JA |
129 | } |
130 | ||
131 | static inline struct io_sample *get_sample(struct io_log *iolog, | |
132 | uint64_t sample) | |
133 | { | |
134 | return __get_sample(iolog->log, iolog->log_offset, sample); | |
135 | } | |
136 | ||
0d29de83 JA |
137 | enum { |
138 | IP_F_ONRB = 1, | |
139 | IP_F_ONLIST = 2, | |
140 | IP_F_TRIMMED = 4, | |
f9401285 | 141 | IP_F_IN_FLIGHT = 8, |
0d29de83 JA |
142 | }; |
143 | ||
5995a6a4 JA |
144 | /* |
145 | * When logging io actions, this matches a single sent io_u | |
146 | */ | |
147 | struct io_piece { | |
148 | union { | |
149 | struct rb_node rb_node; | |
150 | struct flist_head list; | |
151 | }; | |
0d29de83 | 152 | struct flist_head trim_list; |
5995a6a4 JA |
153 | union { |
154 | int fileno; | |
155 | struct fio_file *file; | |
156 | }; | |
157 | unsigned long long offset; | |
da0a7bd2 | 158 | unsigned short numberio; |
5995a6a4 | 159 | unsigned long len; |
a917a8b3 | 160 | unsigned int flags; |
5995a6a4 JA |
161 | enum fio_ddir ddir; |
162 | union { | |
163 | unsigned long delay; | |
164 | unsigned int file_action; | |
165 | }; | |
166 | }; | |
167 | ||
168 | /* | |
169 | * Log exports | |
170 | */ | |
171 | enum file_log_act { | |
172 | FIO_LOG_ADD_FILE, | |
173 | FIO_LOG_OPEN_FILE, | |
174 | FIO_LOG_CLOSE_FILE, | |
175 | FIO_LOG_UNLINK_FILE, | |
176 | }; | |
177 | ||
8062f527 | 178 | struct io_u; |
5995a6a4 | 179 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
1f440ece | 180 | extern void log_io_u(const struct thread_data *, const struct io_u *); |
5995a6a4 JA |
181 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); |
182 | extern int __must_check init_iolog(struct thread_data *td); | |
183 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
890b6656 | 184 | extern void unlog_io_piece(struct thread_data *, struct io_u *); |
1f440ece | 185 | extern void trim_io_piece(struct thread_data *, const struct io_u *); |
5995a6a4 JA |
186 | extern void queue_io_piece(struct thread_data *, struct io_piece *); |
187 | extern void prune_io_piece_log(struct thread_data *); | |
188 | extern void write_iolog_close(struct thread_data *); | |
24660963 | 189 | extern int iolog_compress_init(struct thread_data *, struct sk_out *); |
155f2f02 | 190 | extern void iolog_compress_exit(struct thread_data *); |
0cba0f91 | 191 | extern size_t log_chunk_sizes(struct io_log *); |
5995a6a4 | 192 | |
b26317c9 JA |
193 | #ifdef CONFIG_ZLIB |
194 | extern int iolog_file_inflate(const char *); | |
195 | #endif | |
196 | ||
5995a6a4 JA |
197 | /* |
198 | * Logging | |
199 | */ | |
aee2ab67 JA |
200 | struct log_params { |
201 | struct thread_data *td; | |
202 | unsigned long avg_msec; | |
203 | int log_type; | |
204 | int log_offset; | |
205 | int log_gz; | |
b26317c9 | 206 | int log_gz_store; |
aee2ab67 JA |
207 | int log_compress; |
208 | }; | |
209 | ||
a47591e4 JA |
210 | static inline bool per_unit_log(struct io_log *log) |
211 | { | |
212 | return log && !log->avg_msec; | |
213 | } | |
214 | ||
215 | extern void finalize_logs(struct thread_data *td, bool); | |
aee2ab67 | 216 | extern void setup_log(struct io_log **, struct log_params *, const char *); |
3a5db920 | 217 | extern void flush_log(struct io_log *, int); |
bead01d7 | 218 | extern void flush_samples(FILE *, void *, uint64_t); |
518dac09 | 219 | extern void free_log(struct io_log *); |
a47591e4 JA |
220 | extern void fio_writeout_logs(bool); |
221 | extern void td_writeout_logs(struct thread_data *, bool); | |
aee2ab67 | 222 | extern int iolog_flush(struct io_log *, int); |
5995a6a4 | 223 | |
0d29de83 JA |
224 | static inline void init_ipo(struct io_piece *ipo) |
225 | { | |
226 | memset(ipo, 0, sizeof(*ipo)); | |
227 | INIT_FLIST_HEAD(&ipo->trim_list); | |
228 | } | |
229 | ||
0cba0f91 JA |
230 | struct iolog_compress { |
231 | struct flist_head list; | |
232 | void *buf; | |
233 | size_t len; | |
234 | unsigned int seq; | |
235 | }; | |
236 | ||
5995a6a4 | 237 | #endif |