4 #include "lib/rbtree.h"
5 #include "lib/ieee754.h"
10 * Use for maintaining statistics
22 * A single data sample
31 struct io_sample_offset {
45 * Dynamically growing data sample log
49 * Entries already logged
55 unsigned int log_ddir_mask;
59 struct thread_data *td;
61 unsigned int log_type;
64 * If we fail extending the log, stop collecting more entries.
66 unsigned int disabled;
71 unsigned int log_offset;
74 * Max size of log entries before a chunk is compressed
79 * Don't deflate for storing, just store the compressed bits
81 unsigned int log_gz_store;
84 * Windowed average, for logging single entries average over some
87 struct io_stat avg_window[DDIR_RWDIR_CNT];
88 unsigned long avg_msec;
89 unsigned long avg_last;
91 pthread_mutex_t chunk_lock;
92 unsigned int chunk_seq;
93 struct flist_head chunk_list;
97 * If the upper bit is set, then we have the offset as well
99 #define LOG_OFFSET_SAMPLE_BIT 0x80000000U
100 #define io_sample_ddir(io) ((io)->__ddir & ~LOG_OFFSET_SAMPLE_BIT)
102 static inline void io_sample_set_ddir(struct io_log *log,
103 struct io_sample *io,
106 io->__ddir = ddir | log->log_ddir_mask;
109 static inline size_t __log_entry_sz(int log_offset)
112 return sizeof(struct io_sample_offset);
114 return sizeof(struct io_sample);
117 static inline size_t log_entry_sz(struct io_log *log)
119 return __log_entry_sz(log->log_offset);
122 static inline struct io_sample *__get_sample(void *samples, int log_offset,
125 uint64_t sample_offset = sample * __log_entry_sz(log_offset);
126 return (struct io_sample *) ((char *) samples + sample_offset);
129 static inline struct io_sample *get_sample(struct io_log *iolog,
132 return __get_sample(iolog->log, iolog->log_offset, sample);
143 * When logging io actions, this matches a single sent io_u
147 struct rb_node rb_node;
148 struct flist_head list;
150 struct flist_head trim_list;
153 struct fio_file *file;
155 unsigned long long offset;
156 unsigned short numberio;
162 unsigned int file_action;
177 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
178 extern void log_io_u(const struct thread_data *, const struct io_u *);
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 *);
182 extern void unlog_io_piece(struct thread_data *, struct io_u *);
183 extern void trim_io_piece(struct thread_data *, const struct io_u *);
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 *);
187 extern int iolog_compress_init(struct thread_data *, struct sk_out *);
188 extern void iolog_compress_exit(struct thread_data *);
189 extern size_t log_chunk_sizes(struct io_log *);
192 extern int iolog_file_inflate(const char *);
199 struct thread_data *td;
200 unsigned long avg_msec;
208 extern void finalize_logs(struct thread_data *td);
209 extern void setup_log(struct io_log **, struct log_params *, const char *);
210 extern void flush_log(struct io_log *, int);
211 extern void flush_samples(FILE *, void *, uint64_t);
212 extern void free_log(struct io_log *);
213 extern void fio_writeout_logs(struct thread_data *);
214 extern int iolog_flush(struct io_log *, int);
216 static inline void init_ipo(struct io_piece *ipo)
218 memset(ipo, 0, sizeof(*ipo));
219 INIT_FLIST_HEAD(&ipo->trim_list);
222 struct iolog_compress {
223 struct flist_head list;