#ifndef FIO_FILE_H
#define FIO_FILE_H
+#include <string.h>
+#include "compiler/compiler.h"
#include "io_ddir.h"
+#include "flist.h"
+#include "lib/zipf.h"
+#include "lib/axmap.h"
+#include "lib/lfsr.h"
+#include "lib/gauss.h"
/*
* The type of object we are working on
*/
enum fio_filetype {
FIO_TYPE_FILE = 1, /* plain file */
- FIO_TYPE_BD, /* block device */
+ FIO_TYPE_BLOCK, /* block device */
FIO_TYPE_CHAR, /* character device */
FIO_TYPE_PIPE, /* pipe */
};
FIO_FILE_size_known = 1 << 4, /* size has been set */
FIO_FILE_hashed = 1 << 5, /* file is on hash */
FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
+ FIO_FILE_axmap = 1 << 7, /* uses axmap */
+ FIO_FILE_lfsr = 1 << 8, /* lfsr is used */
};
enum file_lock_mode {
};
/*
- * roundrobin available files, or choose one at random, or do each one
- * serially.
+ * How fio chooses what file to service next. Choice of uniformly random, or
+ * some skewed random variants, or just sequentially go through them or
+ * roundrobing.
*/
enum {
- FIO_FSERVICE_RANDOM = 1,
- FIO_FSERVICE_RR = 2,
- FIO_FSERVICE_SEQ = 3,
+ FIO_FSERVICE_RANDOM = 1,
+ FIO_FSERVICE_RR = 2,
+ FIO_FSERVICE_SEQ = 3,
+ __FIO_FSERVICE_NONUNIFORM = 0x100,
+ FIO_FSERVICE_ZIPF = __FIO_FSERVICE_NONUNIFORM | 4,
+ FIO_FSERVICE_PARETO = __FIO_FSERVICE_NONUNIFORM | 5,
+ FIO_FSERVICE_GAUSS = __FIO_FSERVICE_NONUNIFORM | 6,
+
+ FIO_FSERVICE_SHIFT = 10,
+};
+
+/*
+ * No pre-allocation when laying down files, or call posix_fallocate(), or
+ * call fallocate() with FALLOC_FL_KEEP_SIZE set.
+ */
+enum fio_fallocate_mode {
+ FIO_FALLOCATE_NONE = 1,
+ FIO_FALLOCATE_POSIX = 2,
+ FIO_FALLOCATE_KEEP_SIZE = 3,
+ FIO_FALLOCATE_NATIVE = 4,
};
/*
struct flist_head hash_list;
enum fio_filetype filetype;
- void *file_data;
int fd;
-#ifdef __CYGWIN__
+ int shadow_fd;
+#ifdef WIN32
HANDLE hFile;
HANDLE ioCP;
#endif
/*
* filename and possible memory mapping
*/
- char *file_name;
unsigned int major, minor;
-
- void *mmap_ptr;
- size_t mmap_sz;
- off_t mmap_off;
+ int fileno;
+ int bs;
+ char *file_name;
/*
* size of the file, offset into file, and io size from that offset
+ * (be aware io_size is different from thread_options::io_size)
+ */
+ uint64_t real_file_size;
+ uint64_t file_offset;
+ uint64_t io_size;
+
+ /*
+ * Track last end and last start of IO for a given data direction
*/
- unsigned long long real_file_size;
- unsigned long long file_offset;
- unsigned long long io_size;
+ uint64_t last_pos[DDIR_RWDIR_CNT];
+ uint64_t last_start[DDIR_RWDIR_CNT];
- unsigned long long last_pos;
- unsigned long long last_start;
+ uint64_t first_write;
+ uint64_t last_write;
- unsigned long long first_write;
- unsigned long long last_write;
+ /*
+ * Tracks the last iodepth number of completed writes, if data
+ * verification is enabled
+ */
+ uint64_t *last_write_comp;
+ unsigned int last_write_idx;
/*
- * For use by the io engine
+ * For use by the io engine for offset or private data storage
*/
- unsigned long long file_pos;
+ union {
+ uint64_t engine_pos;
+ void *engine_data;
+ };
/*
* if io is protected by a semaphore, this is set
*/
- struct fio_mutex *lock;
- void *lock_owner;
- unsigned int lock_batch;
- enum fio_ddir lock_ddir;
+ union {
+ struct fio_mutex *lock;
+ struct fio_rwlock *rwlock;
+ };
/*
- * block map for random io
+ * block map or LFSR for random io
*/
- unsigned int *file_map;
- unsigned int num_maps;
- unsigned int last_free_lookup;
+ union {
+ struct axmap *io_axmap;
+ struct fio_lfsr lfsr;
+ };
+
+ /*
+ * Used for zipf random distribution
+ */
+ union {
+ struct zipf_state zipf;
+ struct gauss_state gauss;
+ };
int references;
enum fio_file_flags flags;
struct disk_util *du;
};
+#define FILE_ENG_DATA(f) ((f)->engine_data)
+#define FILE_SET_ENG_DATA(f, data) ((f)->engine_data = (data))
+
#define FILE_FLAG_FNS(name) \
static inline void fio_file_set_##name(struct fio_file *f) \
{ \
- (f)->flags |= FIO_FILE_##name; \
+ (f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name); \
} \
static inline void fio_file_clear_##name(struct fio_file *f) \
{ \
- (f)->flags &= ~FIO_FILE_##name; \
+ (f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name); \
} \
static inline int fio_file_##name(struct fio_file *f) \
{ \
FILE_FLAG_FNS(size_known);
FILE_FLAG_FNS(hashed);
FILE_FLAG_FNS(partial_mmap);
+FILE_FLAG_FNS(axmap);
+FILE_FLAG_FNS(lfsr);
#undef FILE_FLAG_FNS
/*
struct thread_data;
extern void close_files(struct thread_data *);
extern void close_and_free_files(struct thread_data *);
+extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
extern int __must_check setup_files(struct thread_data *);
extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
+extern int __must_check file_lookup_open(struct fio_file *f, int flags);
extern int __must_check pre_read_files(struct thread_data *);
-extern int add_file(struct thread_data *, const char *);
+extern unsigned long long get_rand_file_size(struct thread_data *td);
+extern int add_file(struct thread_data *, const char *, int, int);
extern int add_file_exclusive(struct thread_data *, const char *);
extern void get_file(struct fio_file *);
extern int __must_check put_file(struct thread_data *, struct fio_file *);
extern void dup_files(struct thread_data *, struct thread_data *);
extern int get_fileno(struct thread_data *, const char *);
extern void free_release_files(struct thread_data *);
-
-static inline void fio_file_reset(struct fio_file *f)
-{
- f->last_free_lookup = 0;
- f->last_pos = f->file_offset;
- f->last_start = -1ULL;
- f->file_pos = -1ULL;
- if (f->file_map)
- memset(f->file_map, 0, f->num_maps * sizeof(int));
-}
+extern void filesetup_mem_free(void);
+extern void fio_file_reset(struct thread_data *, struct fio_file *);
+extern bool fio_files_done(struct thread_data *);
+extern bool exists_and_not_regfile(const char *);
#endif
projects / fio.git / blobdiff