struct io_piece {
struct list_head list;
+ struct fio_file *file;
unsigned long long offset;
unsigned int len;
int ddir;
char *buf;
unsigned int buflen;
unsigned long long offset;
- unsigned int index;
unsigned int resid;
unsigned int error;
- unsigned char seen;
unsigned char ddir;
+ /*
+ * io engine private data
+ */
+ union {
+ unsigned int index;
+ unsigned int seen;
+ };
+
+ struct fio_file *file;
+
struct list_head list;
};
enum fio_ddir {
DDIR_READ = 0,
DDIR_WRITE,
+ DDIR_SYNC,
};
/*
FIO_TYPE_CHAR,
};
-enum fio_iotype {
+enum fio_ioengine_flags {
FIO_SYNCIO = 1 << 0,
- FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
- FIO_LIBAIO = 1 << 2,
- FIO_POSIXAIO = 1 << 3,
- FIO_SGIO = 1 << 4,
- FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO,
+ FIO_CPUIO = 1 << 1,
+ FIO_MMAPIO = 1 << 2,
+ FIO_RAWIO = 1 << 3,
+};
+
+struct fio_file {
+ /*
+ * A file may not be a file descriptor, let the io engine decide
+ */
+ union {
+ unsigned long file_data;
+ int fd;
+ };
+ char *file_name;
+ void *mmap;
+ unsigned long long file_size;
+ unsigned long long real_file_size;
+ unsigned long long file_offset;
+ unsigned long long last_pos;
+
+ unsigned long *file_map;
+ unsigned int num_maps;
};
/*
*/
struct thread_data {
char name[32];
- char *file_name;
char *directory;
+ char *filename;
char verror[80];
pthread_t thread;
int thread_number;
int groupid;
enum fio_filetype filetype;
+ struct fio_file *files;
+ unsigned int nr_files;
+ unsigned int nr_uniq_files;
+ unsigned int next_file;
int error;
- int fd;
- void *mmap;
pid_t pid;
char *orig_buffer;
size_t orig_buffer_size;
enum fio_ddir ddir;
unsigned int iomix;
unsigned int ioprio;
+ unsigned int last_was_sync;
unsigned char sequential;
unsigned char odirect;
- unsigned char create_file;
unsigned char invalidate_cache;
unsigned char create_serialize;
unsigned char create_fsync;
unsigned char sync_io;
unsigned char verify;
unsigned char use_thread;
+ unsigned char unlink;
unsigned char do_disk_util;
unsigned char override_sync;
+ unsigned char rand_repeatable;
+ unsigned char write_lat_log;
+ unsigned char write_bw_log;
unsigned int bs;
unsigned int min_bs;
unsigned int thinktime;
unsigned int fsync_blocks;
unsigned int start_delay;
- unsigned int timeout;
- enum fio_iotype io_engine;
+ unsigned long timeout;
unsigned int overwrite;
unsigned int bw_avg_time;
unsigned int loops;
- unsigned long long file_size;
- unsigned long long real_file_size;
- unsigned long long file_offset;
unsigned long long zone_size;
unsigned long long zone_skip;
enum fio_memtype mem_type;
unsigned int numjobs;
unsigned int iodepth;
os_cpu_mask_t cpumask;
- unsigned int jobnum;
unsigned int iolog;
unsigned int read_iolog;
unsigned int write_iolog;
* IO engine hooks, contains everything needed to submit an io_u
* to any of the available IO engines.
*/
- void *io_data;
- char io_engine_name[16];
- int (*io_prep)(struct thread_data *, struct io_u *);
- int (*io_queue)(struct thread_data *, struct io_u *);
- int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
- struct io_u *(*io_event)(struct thread_data *, int);
- int (*io_cancel)(struct thread_data *, struct io_u *);
- void (*io_cleanup)(struct thread_data *);
- int (*io_sync)(struct thread_data *);
+ struct ioengine_ops *io_ops;
/*
* Current IO depth and list of free and busy io_u's.
unsigned long runtime[2]; /* msec */
unsigned long long io_size;
+ unsigned long long total_file_size;
+ unsigned long long start_offset;
unsigned long long total_io_size;
unsigned long long io_blocks[2];
unsigned long long io_bytes[2];
unsigned long long zone_bytes;
unsigned long long this_io_bytes[2];
- unsigned long long last_pos;
volatile int mutex;
/*
* State for random io, a bitmap of blocks done vs not done
*/
os_random_state_t random_state;
- unsigned long *file_map;
- unsigned int num_maps;
+
+ /*
+ * CPU "io" cycle burner
+ */
+ unsigned int cpuload;
+ unsigned int cpucycle;
/*
* bandwidth and latency stats
struct list_head io_log_list;
};
-#define td_verror(td, err) \
+#define __td_verror(td, err, msg) \
do { \
int e = (err); \
(td)->error = e; \
- snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
+ snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \
} while (0)
-extern struct io_u *__get_io_u(struct thread_data *);
-extern void put_io_u(struct thread_data *, struct io_u *);
+
+#define td_verror(td, err) __td_verror((td), (err), strerror((err)))
+#define td_vmsg(td, err, msg) __td_verror((td), (err), (msg))
extern int rate_quit;
-extern int write_lat_log;
-extern int write_bw_log;
extern int exitall_on_terminate;
extern int thread_number;
extern int shm_id;
extern int groupid;
+extern int terse_output;
+extern FILE *f_out;
+extern FILE *f_err;
+extern char *fio_inst_prefix;
+extern int temp_stall_ts;
extern struct thread_data *threads;
#define td_rw(td) ((td)->iomix != 0)
#define BLOCKS_PER_MAP (8 * sizeof(long))
-#define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
-#define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
-#define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
+#define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->min_bs))
+#define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP)
+#define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1))
#define MAX_JOBS (1024)
+static inline int should_fsync(struct thread_data *td)
+{
+ if (td->last_was_sync)
+ return 0;
+ if (td->odirect)
+ return 0;
+ if (td_write(td) || td_rw(td) || td->override_sync)
+ return 1;
+
+ return 0;
+}
+
struct disk_util_stat {
unsigned ios[2];
unsigned merges[2];
/*
* Time functions
*/
+extern void time_init(void);
extern unsigned long utime_since(struct timeval *, struct timeval *);
extern unsigned long mtime_since(struct timeval *, struct timeval *);
extern unsigned long mtime_since_now(struct timeval *);
extern unsigned long time_since_now(struct timeval *);
+extern unsigned long mtime_since_genesis(void);
+extern void __usec_sleep(unsigned int);
extern void usec_sleep(struct thread_data *, unsigned long);
extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
extern int parse_options(int, char **);
extern int init_random_state(struct thread_data *);
+/*
+ * File setup/shutdown
+ */
+extern void close_files(struct thread_data *);
+extern int setup_files(struct thread_data *);
+extern int file_invalidate_cache(struct thread_data *, struct fio_file *);
+
+/*
+ * ETA/status stuff
+ */
+extern void print_thread_status(void);
+extern void print_status_init(int);
+
+/*
+ * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
+ * will never back again. It may cycle between running/verififying/fsyncing.
+ * Once the thread reaches TD_EXITED, it is just waiting for the core to
+ * reap it.
+ */
+enum {
+ TD_NOT_CREATED = 0,
+ TD_CREATED,
+ TD_INITIALIZED,
+ TD_RUNNING,
+ TD_VERIFYING,
+ TD_FSYNCING,
+ TD_EXITED,
+ TD_REAPED,
+};
+
+/*
+ * Verify helpers
+ */
+extern void populate_verify_io_u(struct thread_data *, struct io_u *);
+extern int get_next_verify(struct thread_data *td, struct io_u *);
+extern int do_io_u_verify(struct thread_data *, struct io_u **);
+
+/*
+ * Memory helpers
+ */
+extern int fio_pin_memory(void);
+extern void fio_unpin_memory(void);
+extern int allocate_io_mem(struct thread_data *);
+extern void free_io_mem(struct thread_data *);
+
+/*
+ * io unit handling
+ */
+#define queue_full(td) list_empty(&(td)->io_u_freelist)
+extern struct io_u *__get_io_u(struct thread_data *);
+extern struct io_u *get_io_u(struct thread_data *, struct fio_file *);
+extern void put_io_u(struct thread_data *, struct io_u *);
+extern void ios_completed(struct thread_data *, struct io_completion_data *);
+extern void io_completed(struct thread_data *, struct io_u *, struct io_completion_data *);
+
+/*
+ * io engine entry points
+ */
+extern int td_io_init(struct thread_data *);
+extern int td_io_prep(struct thread_data *, struct io_u *);
+extern int td_io_queue(struct thread_data *, struct io_u *);
+extern int td_io_sync(struct thread_data *, struct fio_file *);
+extern int td_io_getevents(struct thread_data *, int, int, struct timespec *);
+
/*
* This is a pretty crappy semaphore implementation, but with the use that fio
* has (just signalling start/go conditions), it doesn't have to be better.
* Naturally this would not work for any type of contended semaphore or
* for real locking.
*/
-static inline void fio_sem_init(volatile int volatile *sem, int val)
+static inline void fio_sem_init(volatile int *sem, int val)
{
*sem = val;
}
-static inline void fio_sem_down(volatile int volatile *sem)
+static inline void fio_sem_down(volatile int *sem)
{
while (*sem == 0)
usleep(10000);
(*sem)--;
}
-static inline void fio_sem_up(volatile int volatile *sem)
+static inline void fio_sem_up(volatile int *sem)
{
(*sem)++;
}
+/*
+ * If logging output to a file, stderr should go to both stderr and f_err
+ */
+#define log_err(args...) do { \
+ fprintf(f_err, ##args); \
+ if (f_err != stderr) \
+ fprintf(stderr, ##args); \
+ } while (0)
+
+struct ioengine_ops {
+ char name[16];
+ int version;
+ int flags;
+ int (*setup)(struct thread_data *);
+ int (*init)(struct thread_data *);
+ int (*prep)(struct thread_data *, struct io_u *);
+ int (*queue)(struct thread_data *, struct io_u *);
+ int (*getevents)(struct thread_data *, int, int, struct timespec *);
+ struct io_u *(*event)(struct thread_data *, int);
+ int (*cancel)(struct thread_data *, struct io_u *);
+ void (*cleanup)(struct thread_data *);
+ void *data;
+ void *dlhandle;
+};
+
+#define FIO_IOOPS_VERSION 3
+
+extern struct ioengine_ops *load_ioengine(struct thread_data *, char *);
+extern void close_ioengine(struct thread_data *);
+
+/*
+ * Mark unused variables passed to ops functions as unused, to silence gcc
+ */
+#define fio_unused __attribute((__unused__))
+
+#define for_each_td(td, i) \
+ for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
+#define for_each_file(td, f, i) \
+ for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++)
+
#endif
projects / fio.git / blobdiff