#include "lib/zipf.h"
#include "lib/axmap.h"
#include "lib/lfsr.h"
+#include "lib/gauss.h"
/*
* The type of object we are working on
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 {
/*
* filename and possible memory mapping
*/
- char *file_name;
unsigned int major, minor;
int fileno;
-
- void *mmap_ptr;
- size_t mmap_sz;
- off_t mmap_off;
+ int bs;
+ char *file_name;
/*
* size of the file, offset into file, and io size from that offset
uint64_t file_offset;
uint64_t io_size;
- uint64_t last_pos;
- uint64_t last_start;
+ /*
+ * Track last end and last start of IO for a given data direction
+ */
+ uint64_t last_pos[DDIR_RWDIR_CNT];
+ uint64_t last_start[DDIR_RWDIR_CNT];
uint64_t first_write;
uint64_t last_write;
};
/*
- * block map for random io
+ * block map or LFSR for random io
*/
- struct axmap *io_axmap;
-
- struct fio_lfsr lfsr;
+ union {
+ struct axmap *io_axmap;
+ struct fio_lfsr lfsr;
+ };
/*
* Used for zipf random distribution
*/
- struct zipf_state zipf;
+ 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) ((void *) (uintptr_t) (f)->engine_data)
+#define FILE_SET_ENG_DATA(f, data) \
+ ((f)->engine_data = (uintptr_t) (data))
+
struct file_name {
struct flist_head list;
char *filename;
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
/*