#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
+#include <string.h>
#include "list.h"
#include "md5.h"
#include "arch.h"
#include "os.h"
+#ifdef FIO_HAVE_SYSLET
+#include "syslet.h"
+#endif
+
+enum fio_ddir {
+ DDIR_READ = 0,
+ DDIR_WRITE,
+ DDIR_SYNC,
+};
+
+/*
+ * Use for maintaining statistics
+ */
struct io_stat {
- unsigned long val;
- unsigned long val_sq;
unsigned long max_val;
unsigned long min_val;
unsigned long samples;
+
+ double mean;
+ double S;
};
+/*
+ * A single data sample
+ */
struct io_sample {
unsigned long time;
unsigned long val;
- unsigned int ddir;
+ enum fio_ddir ddir;
};
+/*
+ * Dynamically growing data sample log
+ */
struct io_log {
unsigned long nr_samples;
unsigned long max_samples;
struct io_sample *log;
};
+/*
+ * When logging io actions, this matches a single sent io_u
+ */
struct io_piece {
struct list_head list;
+ struct fio_file *file;
unsigned long long offset;
- unsigned int len;
- int ddir;
+ unsigned long len;
+ enum fio_ddir ddir;
};
+#ifdef FIO_HAVE_SYSLET
+struct syslet_req {
+ struct syslet_uatom atom;
+ long ret;
+};
+#endif
+
/*
* The io unit
*/
#endif
#ifdef FIO_HAVE_SGIO
struct sg_io_hdr hdr;
+#endif
+#ifdef FIO_HAVE_SYSLET
+ struct syslet_req req;
#endif
};
struct timeval start_time;
struct timeval issue_time;
- char *buf;
- unsigned int buflen;
+ /*
+ * Allocated/set buffer and length
+ */
+ void *buf;
+ unsigned long buflen;
unsigned long long offset;
- unsigned int index;
+
+ /*
+ * IO engine state, may be different from above when we get
+ * partial transfers / residual data counts
+ */
+ void *xfer_buf;
+ unsigned long xfer_buflen;
unsigned int resid;
unsigned int error;
- unsigned char seen;
- unsigned char ddir;
+ enum fio_ddir ddir;
+
+ /*
+ * io engine private data
+ */
+ union {
+ unsigned int index;
+ unsigned int seen;
+ };
+
+ struct fio_file *file;
struct list_head list;
};
+/*
+ * io_ops->queue() return values
+ */
+enum {
+ FIO_Q_COMPLETED = 0, /* completed sync */
+ FIO_Q_QUEUED = 1, /* queued, will complete async */
+ FIO_Q_BUSY = 2, /* no more room, call ->commit() */
+};
+
#define FIO_HDR_MAGIC 0xf00baaef
enum {
- VERIFY_NONE = 0,
- VERIFY_MD5,
- VERIFY_CRC32,
+ VERIFY_NONE = 0, /* no verification */
+ VERIFY_MD5, /* md5 sum data blocks */
+ VERIFY_CRC32, /* crc32 sum data blocks */
};
+/*
+ * A header structure associated with each checksummed data block
+ */
struct verify_header {
unsigned int fio_magic;
unsigned int len;
unsigned long long agg[2];
};
-enum fio_ddir {
- DDIR_READ = 0,
- DDIR_WRITE,
-};
-
/*
* What type of allocation to use for io buffers
*/
enum fio_memtype {
MEM_MALLOC = 0, /* ordinary malloc */
MEM_SHM, /* use shared memory segments */
+ MEM_SHMHUGE, /* use shared memory segments with huge pages */
MEM_MMAP, /* use anonynomous mmap */
+ MEM_MMAPHUGE, /* memory mapped huge file */
};
/*
* The type of object we are working on
*/
enum fio_filetype {
- FIO_TYPE_FILE = 1,
- FIO_TYPE_BD,
- FIO_TYPE_CHAR,
+ FIO_TYPE_FILE = 1, /* plain file */
+ FIO_TYPE_BD, /* block device */
+ FIO_TYPE_CHAR, /* character device */
};
enum fio_ioengine_flags {
- FIO_SYNCIO = 1 << 0,
- FIO_CPUIO = 1 << 1,
- FIO_MMAPIO = 1 << 2,
+ FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
+ FIO_CPUIO = 1 << 1, /* cpu burner, doesn't do real io */
+ FIO_MMAPIO = 1 << 2, /* uses memory mapped io */
+ FIO_RAWIO = 1 << 3, /* some sort of direct/raw io */
+ FIO_NETIO = 1 << 4, /* networked io */
+ FIO_NULLIO = 1 << 5, /* no real data transfer (cpu/null) */
+};
+
+/*
+ * Each thread_data structure has a number of files associated with it,
+ * this structure holds state information for a single file.
+ */
+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 long last_completed_pos;
+
+ /*
+ * block map for random io
+ */
+ unsigned long *file_map;
+ unsigned int num_maps;
+ unsigned int last_free_lookup;
+
+ unsigned int unlink;
};
+/*
+ * How many depth levels to log
+ */
+#define FIO_IO_U_MAP_NR 8
+#define FIO_IO_U_LAT_NR 12
+
/*
* This describes a single thread/process executing a fio job.
*/
struct thread_data {
- char name[32];
- char *file_name;
+ char *description;
+ char *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 char sequential;
- unsigned char odirect;
- unsigned char create_file;
- unsigned char invalidate_cache;
- unsigned char create_serialize;
- unsigned char create_fsync;
- unsigned char end_fsync;
- unsigned char sync_io;
- unsigned char verify;
- unsigned char use_thread;
- unsigned char do_disk_util;
- unsigned char override_sync;
- unsigned char rand_repeatable;
-
- unsigned int bs;
- unsigned int min_bs;
- unsigned int max_bs;
+ unsigned int last_was_sync;
+
+ unsigned int sequential;
+ unsigned int odirect;
+ unsigned int invalidate_cache;
+ unsigned int create_serialize;
+ unsigned int create_fsync;
+ unsigned int end_fsync;
+ unsigned int sync_io;
+ unsigned int verify;
+ unsigned int use_thread;
+ unsigned int unlink;
+ unsigned int do_disk_util;
+ unsigned int override_sync;
+ unsigned int rand_repeatable;
+ unsigned int write_lat_log;
+ unsigned int write_bw_log;
+ unsigned int norandommap;
+ unsigned int bs_unaligned;
+
+ unsigned int bs[2];
+ unsigned int min_bs[2];
+ unsigned int max_bs[2];
+ unsigned int hugepage_size;
+ unsigned int rw_min_bs;
unsigned int thinktime;
+ unsigned int thinktime_spin;
+ unsigned int thinktime_blocks;
unsigned int fsync_blocks;
unsigned int start_delay;
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;
+ char *mmapfile;
+ int mmapfd;
unsigned int stonewall;
unsigned int numjobs;
unsigned int iodepth;
os_cpu_mask_t cpumask;
unsigned int iolog;
unsigned int read_iolog;
- unsigned int write_iolog;
unsigned int rwmixcycle;
unsigned int rwmixread;
+ unsigned int rwmixwrite;
unsigned int nice;
- char *iolog_file;
+ char *read_iolog_file;
+ char *write_iolog_file;
void *iolog_buf;
FILE *iolog_f;
* Current IO depth and list of free and busy io_u's.
*/
unsigned int cur_depth;
+ unsigned int io_u_map[FIO_IO_U_MAP_NR];
+ unsigned int io_u_lat[FIO_IO_U_LAT_NR];
+ unsigned long total_io_u;
struct list_head io_u_freelist;
struct list_head io_u_busylist;
+ struct list_head io_u_requeues;
/*
* Rate state
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 io_issues[2];
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
struct timeval start; /* start of this loop */
struct timeval epoch; /* time job was started */
+ struct timeval end_time;/* time job ended */
/*
* fio system usage accounting
#define td_verror(td, err) __td_verror((td), (err), strerror((err)))
#define td_vmsg(td, err, msg) __td_verror((td), (err), (msg))
-extern struct io_u *__get_io_u(struct thread_data *);
-extern void put_io_u(struct thread_data *, struct io_u *);
-
-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 terse_output;
extern FILE *f_out;
extern FILE *f_err;
-extern char *fio_inst_prefix;
+extern int temp_stall_ts;
+extern unsigned long long mlock_size;
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)->rw_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;
+}
+
+/*
+ * Disk utils as read in /sys/block/<dev>/stat
+ */
struct disk_util_stat {
unsigned ios[2];
unsigned merges[2];
unsigned time_in_queue;
};
+/*
+ * Per-device disk util management
+ */
struct disk_util {
struct list_head list;
struct timeval time;
};
-struct io_completion_data {
- int nr; /* input */
-
- int error; /* output */
- unsigned long bytes_done[2]; /* output */
-};
+/*
+ * Callback for io completion
+ */
+typedef int (endio_handler)(struct io_u *);
#define DISK_UTIL_MSEC (250)
#ifndef min
#define min(a, b) ((a) < (b) ? (a) : (b))
#endif
+#ifndef max
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#endif
/*
* Log exports
/*
* Logging
*/
-extern void add_clat_sample(struct thread_data *, int, unsigned long);
-extern void add_slat_sample(struct thread_data *, int, unsigned long);
-extern void add_bw_sample(struct thread_data *, int);
+extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long);
+extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long);
+extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *);
extern void show_run_stats(void);
extern void init_disk_util(struct thread_data *);
extern void update_rusage_stat(struct thread_data *);
extern void disk_util_timer_arm(void);
extern void setup_log(struct io_log **);
extern void finish_log(struct thread_data *, struct io_log *, const char *);
+extern void __finish_log(struct io_log *, const char *);
extern int setup_rate(struct thread_data *);
+extern struct io_log *agg_io_log[2];
+extern int write_bw_log;
+extern void add_agg_sample(unsigned long, enum fio_ddir);
/*
* Time functions
*/
extern unsigned long utime_since(struct timeval *, struct timeval *);
+extern unsigned long utime_since_now(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 void rate_throttle(struct thread_data *, unsigned long, unsigned int, int);
+extern void fill_start_time(struct timeval *);
+extern void fio_gettime(struct timeval *, void *);
/*
* Init functions
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 open_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 verify_io_u(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 requeue_io_u(struct thread_data *, struct io_u **);
+extern long io_u_sync_complete(struct thread_data *, struct io_u *, endio_handler *);
+extern long io_u_queued_complete(struct thread_data *, int, endio_handler *);
+
+/*
+ * 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 *);
+extern int td_io_commit(struct thread_data *);
+
/*
* 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.
} while (0)
struct ioengine_ops {
+ struct list_head list;
char name[16];
int version;
int flags;
int (*init)(struct thread_data *);
int (*prep)(struct thread_data *, struct io_u *);
int (*queue)(struct thread_data *, struct io_u *);
+ int (*commit)(struct thread_data *);
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 *);
- int (*sync)(struct thread_data *);
void *data;
void *dlhandle;
+ unsigned long priv;
};
-#define FIO_IOOPS_VERSION 1
+#define FIO_IOOPS_VERSION 5
-extern struct ioengine_ops *load_ioengine(struct thread_data *, char *);
+extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
+extern int register_ioengine(struct ioengine_ops *);
+extern void unregister_ioengine(struct ioengine_ops *);
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 fio_init __attribute__((constructor))
+#define fio_exit __attribute__((destructor))
+
+#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)++)
+
+#define fio_assert(td, cond) do { \
+ if (!(cond)) { \
+ int *__foo = NULL; \
+ fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
+ (td)->runstate = TD_EXITED; \
+ (td)->error = EFAULT; \
+ *__foo = 0; \
+ } \
+} while (0)
#endif
projects / fio.git / blobdiff