#include <pthread.h>
#include <sys/time.h>
#include <sys/resource.h>
-#include <semaphore.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
#include "list.h"
#include "md5.h"
struct list_head list;
unsigned long long offset;
unsigned int len;
+ int ddir;
};
/*
struct group_run_stats {
unsigned long long max_run[2], min_run[2];
unsigned long long max_bw[2], min_bw[2];
- unsigned long long io_mb[2];
+ unsigned long long io_kb[2];
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_MMAP, /* use anonynomous mmap */
+};
+
+/*
+ * The type of object we are working on
+ */
+enum fio_filetype {
+ FIO_TYPE_FILE = 1,
+ FIO_TYPE_BD,
+ FIO_TYPE_CHAR,
+};
+
+enum fio_ioengine_flags {
+ FIO_SYNCIO = 1 << 0,
+ FIO_CPUIO = 1 << 1,
+ FIO_MMAPIO = 1 << 2,
+};
+
+/*
+ * This describes a single thread/process executing a fio job.
+ */
struct thread_data {
- char file_name[256];
- char directory[256];
+ char name[32];
+ char *file_name;
+ char *directory;
char verror[80];
pthread_t thread;
int thread_number;
int groupid;
- int filetype;
+ enum fio_filetype filetype;
int error;
int fd;
void *mmap;
size_t orig_buffer_size;
volatile int terminate;
volatile int runstate;
- volatile int old_runstate;
- unsigned int ddir;
+ enum fio_ddir ddir;
+ unsigned int iomix;
unsigned int ioprio;
- unsigned int sequential;
+
+ 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 odirect;
unsigned int thinktime;
unsigned int fsync_blocks;
unsigned int start_delay;
- unsigned int timeout;
- unsigned int io_engine;
- unsigned int create_file;
+ unsigned long timeout;
unsigned int overwrite;
- unsigned int invalidate_cache;
unsigned int bw_avg_time;
- unsigned int create_serialize;
- unsigned int create_fsync;
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;
- unsigned int sync_io;
- unsigned int mem_type;
- unsigned int verify;
+ enum fio_memtype mem_type;
unsigned int stonewall;
unsigned int numjobs;
- unsigned int use_thread;
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 nice;
+
+ char *iolog_file;
+ void *iolog_buf;
+ FILE *iolog_f;
+
+ char *sysfs_root;
+ char *ioscheduler;
- struct drand48_data bsrange_state;
- struct drand48_data verify_state;
+ os_random_state_t bsrange_state;
+ os_random_state_t verify_state;
int shm_id;
- 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 *);
+ /*
+ * IO engine hooks, contains everything needed to submit an io_u
+ * to any of the available IO engines.
+ */
+ struct ioengine_ops *io_ops;
+ /*
+ * Current IO depth and list of free and busy io_u's.
+ */
unsigned int cur_depth;
struct list_head io_u_freelist;
struct list_head io_u_busylist;
+ /*
+ * Rate state
+ */
unsigned int rate;
unsigned int ratemin;
unsigned int ratecycle;
unsigned long long zone_bytes;
unsigned long long this_io_bytes[2];
unsigned long long last_pos;
- sem_t mutex;
+ volatile int mutex;
- struct drand48_data random_state;
+ /*
+ * 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 timeval start; /* start of this loop */
struct timeval epoch; /* time job was started */
+ /*
+ * fio system usage accounting
+ */
struct rusage ru_start;
struct rusage ru_end;
unsigned long usr_time;
unsigned long sys_time;
unsigned long ctx;
- unsigned int do_disk_util;
- unsigned int override_sync;
+ /*
+ * read/write mixed workload state
+ */
+ os_random_state_t rwmix_state;
+ struct timeval rwmix_switch;
+ enum fio_ddir rwmix_ddir;
+
+ /*
+ * Pre-run and post-run shell
+ */
+ char *exec_prerun;
+ char *exec_postrun;
+ /*
+ * IO historic logs
+ */
struct list_head io_hist_list;
+ 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 int parse_jobs_ini(char *);
-extern int parse_options(int, char **);
-extern void finish_log(struct thread_data *, struct io_log *, const char *);
-extern int init_random_state(struct thread_data *);
+
+#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 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 struct thread_data *threads;
-enum {
- DDIR_READ = 0,
- DDIR_WRITE,
-};
-
-/*
- * What type of allocation to use for io buffers
- */
-enum {
- MEM_MALLOC, /* ordinary malloc */
- MEM_SHM, /* use shared memory segments */
- MEM_MMAP, /* use anonynomous mmap */
-};
-
-/*
- * The type of object we are working on
- */
-enum {
- FIO_TYPE_FILE = 1,
- FIO_TYPE_BD,
- FIO_TYPE_CHAR,
-};
-
-enum {
- FIO_SYNCIO = 1 << 0,
- FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
- FIO_LIBAIO = 1 << 2,
- FIO_POSIXAIO = 1 << 3,
- FIO_SGIO = 1 << 4,
-};
-
#define td_read(td) ((td)->ddir == DDIR_READ)
#define td_write(td) ((td)->ddir == DDIR_WRITE)
+#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 DISK_UTIL_MSEC (250)
+#ifndef min
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+/*
+ * Log exports
+ */
+extern int read_iolog_get(struct thread_data *, struct io_u *);
+extern void write_iolog_put(struct thread_data *, struct io_u *);
+extern int init_iolog(struct thread_data *td);
+extern void log_io_piece(struct thread_data *, struct io_u *);
+extern void prune_io_piece_log(struct thread_data *);
+extern void write_iolog_close(struct thread_data *);
+
+/*
+ * 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 show_run_stats(void);
+extern void init_disk_util(struct thread_data *);
+extern void update_rusage_stat(struct thread_data *);
+extern void update_io_ticks(void);
+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 int setup_rate(struct thread_data *);
+
+/*
+ * Time functions
+ */
+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 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);
+
+/*
+ * Init functions
+ */
+extern int parse_options(int, char **);
+extern int init_random_state(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.
+ * Naturally this would not work for any type of contended semaphore or
+ * for real locking.
+ */
+static inline void fio_sem_init(volatile int *sem, int val)
+{
+ *sem = val;
+}
+
+static inline void fio_sem_down(volatile int *sem)
+{
+ while (*sem == 0)
+ usleep(10000);
+
+ (*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 *);
+ int (*sync)(struct thread_data *);
+ void *data;
+ void *dlhandle;
+};
+
+#define FIO_IOOPS_VERSION 1
+
+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__))
+
#endif
projects / fio.git / blobdiff