X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=fio.h;h=671cb22f88609da3aed675be5c818b2de51ee101;hp=a75d3b2d1b6ad08441c0826d513c6a92109551e4;hb=f44c1d464a5a6583cd0b6e6068257988b5e5e403;hpb=b6f4d8804ad499adf10b4cad0657284a8a4a6287 diff --git a/fio.h b/fio.h index a75d3b2d..671cb22f 100644 --- a/fio.h +++ b/fio.h @@ -6,7 +6,10 @@ #include #include #include -#include +#include +#include +#include +#include #include "list.h" #include "md5.h" @@ -94,18 +97,54 @@ struct verify_header { 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_iotype { + 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, +}; + +/* + * 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; @@ -114,54 +153,68 @@ struct thread_data { 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 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; + enum fio_iotype io_engine; unsigned int overwrite; - unsigned int invalidate_cache; unsigned int bw_avg_time; - unsigned int create_serialize; - unsigned int create_fsync; - unsigned int end_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 jobnum; unsigned int iolog; + unsigned int read_iolog; + unsigned int write_iolog; unsigned int rwmixcycle; unsigned int rwmixread; unsigned int nice; - char iolog_file[256]; + 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; + /* + * 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 *); @@ -172,10 +225,16 @@ struct thread_data { void (*io_cleanup)(struct thread_data *); int (*io_sync)(struct thread_data *); + /* + * 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; @@ -193,9 +252,12 @@ struct thread_data { 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; @@ -216,19 +278,31 @@ struct thread_data { 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; - - struct drand48_data rwmix_state; + /* + * read/write mixed workload state + */ + os_random_state_t rwmix_state; struct timeval rwmix_switch; - int rwmix_ddir; + 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; }; @@ -240,10 +314,6 @@ struct thread_data { snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \ } 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 *); extern struct io_u *__get_io_u(struct thread_data *); extern void put_io_u(struct thread_data *, struct io_u *); @@ -257,38 +327,6 @@ extern int groupid; 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, - FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO, -}; - #define td_read(td) ((td)->ddir == DDIR_READ) #define td_write(td) ((td)->ddir == DDIR_WRITE) #define td_rw(td) ((td)->iomix != 0) @@ -336,4 +374,69 @@ struct io_completion_data { #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(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 volatile *sem, int val) +{ + *sem = val; +} + +static inline void fio_sem_down(volatile int volatile *sem) +{ + while (*sem == 0) + usleep(10000); + + (*sem)--; +} + +static inline void fio_sem_up(volatile int volatile *sem) +{ + (*sem)++; +} + #endif