[fio.git] / fio.h

#ifndef FIO_H
#define FIO_H

#include <sched.h>
#include <limits.h>
#include <pthread.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>

#include "compiler/compiler.h"
#include "thread_options.h"
#include "flist.h"
#include "fifo.h"
#include "arch/arch.h"
#include "os/os.h"
#include "mutex.h"
#include "log.h"
#include "debug.h"
#include "file.h"
#include "io_ddir.h"
#include "ioengine.h"
#include "iolog.h"
#include "helpers.h"
#include "options.h"
#include "profile.h"
#include "fio_time.h"
#include "gettime.h"
#include "lib/getopt.h"
#include "lib/rand.h"
#include "lib/rbtree.h"
#include "client.h"
#include "server.h"
#include "stat.h"
#include "flow.h"
#include "io_u_queue.h"

#ifdef CONFIG_SOLARISAIO
#include <sys/asynch.h>
#endif

#ifdef CONFIG_LIBNUMA
#include <linux/mempolicy.h>
#include <numa.h>

/*
 * "local" is pseudo-policy
 */
#define MPOL_LOCAL MPOL_MAX
#endif

/*
 * offset generator types
 */
enum {
	RW_SEQ_SEQ	= 0,
	RW_SEQ_IDENT,
};

enum {
	TD_F_VER_BACKLOG	= 1,
	TD_F_TRIM_BACKLOG	= 2,
	TD_F_READ_IOLOG		= 4,
	TD_F_REFILL_BUFFERS	= 8,
	TD_F_SCRAMBLE_BUFFERS	= 16,
	TD_F_VER_NONE		= 32,
	TD_F_PROFILE_OPS	= 64,
	TD_F_COMPRESS		= 128,
	TD_F_NOIO		= 256,
	TD_F_COMPRESS_LOG	= 512,
	TD_F_VSTATE_SAVED	= 1024,
};

enum {
	FIO_RAND_BS_OFF		= 0,
	FIO_RAND_VER_OFF,
	FIO_RAND_MIX_OFF,
	FIO_RAND_FILE_OFF,
	FIO_RAND_BLOCK_OFF,
	FIO_RAND_FILE_SIZE_OFF,
	FIO_RAND_TRIM_OFF,
	FIO_RAND_BUF_OFF,
	FIO_RAND_SEQ_RAND_READ_OFF,
	FIO_RAND_SEQ_RAND_WRITE_OFF,
	FIO_RAND_SEQ_RAND_TRIM_OFF,
	FIO_RAND_START_DELAY,
	FIO_DEDUPE_OFF,
	FIO_RAND_NR_OFFS,
};

/*
 * This describes a single thread/process executing a fio job.
 */
struct thread_data {
	struct thread_options o;
	unsigned long flags;
	void *eo;
	char verror[FIO_VERROR_SIZE];
	pthread_t thread;
	unsigned int thread_number;
	unsigned int subjob_number;
	unsigned int groupid;
	struct thread_stat ts;

	int client_type;

	struct io_log *slat_log;
	struct io_log *clat_log;
	struct io_log *lat_log;
	struct io_log *bw_log;
	struct io_log *iops_log;

	struct tp_data *tp_data;

	uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
	struct timeval bw_sample_time;

	uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
	struct timeval iops_sample_time;

	/*
	 * Tracks the last iodepth number of completed writes, if data
	 * verification is enabled
	 */
	uint64_t *last_write_comp;
	unsigned int last_write_idx;

	volatile int update_rusage;
	struct fio_mutex *rusage_sem;
	struct rusage ru_start;
	struct rusage ru_end;

	struct fio_file **files;
	unsigned char *file_locks;
	unsigned int files_size;
	unsigned int files_index;
	unsigned int nr_open_files;
	unsigned int nr_done_files;
	unsigned int nr_normal_files;
	union {
		unsigned int next_file;
		struct frand_state next_file_state;
	};
	int error;
	int sig;
	int done;
	int stop_io;
	pid_t pid;
	char *orig_buffer;
	size_t orig_buffer_size;
	volatile int terminate;
	volatile int runstate;
	unsigned int last_was_sync;
	enum fio_ddir last_ddir;

	int mmapfd;

	void *iolog_buf;
	FILE *iolog_f;

	char *sysfs_root;

	unsigned long rand_seeds[FIO_RAND_NR_OFFS];

	struct frand_state bsrange_state;
	struct frand_state verify_state;
	struct frand_state trim_state;
	struct frand_state delay_state;

	struct frand_state buf_state;
	struct frand_state buf_state_prev;
	struct frand_state dedupe_state;

	unsigned int verify_batch;
	unsigned int trim_batch;

	struct thread_io_list *vstate;

	int shm_id;

	/*
	 * IO engine hooks, contains everything needed to submit an io_u
	 * to any of the available IO engines.
	 */
	struct ioengine_ops *io_ops;

	/*
	 * Queue depth of io_u's that fio MIGHT do
	 */
	unsigned int cur_depth;

	/*
	 * io_u's about to be committed
	 */
	unsigned int io_u_queued;

	/*
	 * io_u's submitted but not completed yet
	 */
	unsigned int io_u_in_flight;

	/*
	 * List of free and busy io_u's
	 */
	struct io_u_ring io_u_requeues;
	struct io_u_queue io_u_freelist;
	struct io_u_queue io_u_all;
	pthread_mutex_t io_u_lock;
	pthread_cond_t free_cond;

	/*
	 * async verify offload
	 */
	struct flist_head verify_list;
	pthread_t *verify_threads;
	unsigned int nr_verify_threads;
	pthread_cond_t verify_cond;
	int verify_thread_exit;

	/*
	 * Rate state
	 */
	uint64_t rate_bps[DDIR_RWDIR_CNT];
	long rate_pending_usleep[DDIR_RWDIR_CNT];
	unsigned long rate_bytes[DDIR_RWDIR_CNT];
	unsigned long rate_blocks[DDIR_RWDIR_CNT];
	struct timeval lastrate[DDIR_RWDIR_CNT];

	uint64_t total_io_size;
	uint64_t fill_device_size;

	/*
	 * Issue side
	 */
	uint64_t io_issues[DDIR_RWDIR_CNT];
	uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
	uint64_t loops;

	/*
	 * Completions
	 */
	uint64_t io_blocks[DDIR_RWDIR_CNT];
	uint64_t this_io_blocks[DDIR_RWDIR_CNT];
	uint64_t io_bytes[DDIR_RWDIR_CNT];
	uint64_t io_skip_bytes;
	uint64_t this_io_bytes[DDIR_RWDIR_CNT];
	uint64_t zone_bytes;
	struct fio_mutex *mutex;

	/*
	 * State for random io, a bitmap of blocks done vs not done
	 */
	struct frand_state random_state;

	struct timeval start;	/* start of this loop */
	struct timeval epoch;	/* time job was started */
	struct timeval last_issue;
	long time_offset;
	struct timeval tv_cache;
	struct timeval terminate_time;
	unsigned int tv_cache_nr;
	unsigned int tv_cache_mask;
	unsigned int ramp_time_over;

	/*
	 * Time since last latency_window was started
	 */
	struct timeval latency_ts;
	unsigned int latency_qd;
	unsigned int latency_qd_high;
	unsigned int latency_qd_low;
	unsigned int latency_failed;
	uint64_t latency_ios;
	int latency_end_run;

	/*
	 * read/write mixed workload state
	 */
	struct frand_state rwmix_state;
	unsigned long rwmix_issues;
	enum fio_ddir rwmix_ddir;
	unsigned int ddir_seq_nr;

	/*
	 * rand/seq mixed workload state
	 */
	struct frand_state seq_rand_state[DDIR_RWDIR_CNT];

	/*
	 * IO history logs for verification. We use a tree for sorting,
	 * if we are overwriting. Otherwise just use a fifo.
	 */
	struct rb_root io_hist_tree;
	struct flist_head io_hist_list;
	unsigned long io_hist_len;

	/*
	 * For IO replaying
	 */
	struct flist_head io_log_list;

	/*
	 * For tracking/handling discards
	 */
	struct flist_head trim_list;
	unsigned long trim_entries;

	struct flist_head next_rand_list;

	/*
	 * for fileservice, how often to switch to a new file
	 */
	unsigned int file_service_nr;
	unsigned int file_service_left;
	struct fio_file *file_service_file;

	unsigned int sync_file_range_nr;

	/*
	 * For generating file sizes
	 */
	struct frand_state file_size_state;

	/*
	 * Error counts
	 */
	unsigned int total_err_count;
	int first_error;

	struct fio_flow *flow;

	/*
	 * Can be overloaded by profiles
	 */
	struct prof_io_ops prof_io_ops;
	void *prof_data;

	void *pinned_mem;
};

/*
 * when should interactive ETA output be generated
 */
enum {
	FIO_ETA_AUTO,
	FIO_ETA_ALWAYS,
	FIO_ETA_NEVER,
};

#define __td_verror(td, err, msg, func)					\
	do {								\
		unsigned int ____e = (err);				\
		if ((td)->error)					\
			break;						\
		(td)->error = ____e;					\
		if (!(td)->first_error)					\
			snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg));		\
	} while (0)


#define td_clear_error(td)		\
	(td)->error = 0;
#define td_verror(td, err, func)	\
	__td_verror((td), (err), strerror((err)), (func))
#define td_vmsg(td, err, msg, func)	\
	__td_verror((td), (err), (msg), (func))

#define __fio_stringify_1(x)	#x
#define __fio_stringify(x)	__fio_stringify_1(x)

extern int exitall_on_terminate;
extern unsigned int thread_number;
extern unsigned int stat_number;
extern int shm_id;
extern int groupid;
extern int output_format;
extern int append_terse_output;
extern int temp_stall_ts;
extern uintptr_t page_mask, page_size;
extern int read_only;
extern int eta_print;
extern int eta_new_line;
extern unsigned long done_secs;
extern char *job_section;
extern int fio_gtod_offload;
extern int fio_gtod_cpu;
extern enum fio_cs fio_clock_source;
extern int fio_clock_source_set;
extern int warnings_fatal;
extern int terse_version;
extern int is_backend;
extern int nr_clients;
extern int log_syslog;
extern int status_interval;
extern const char fio_version_string[];
extern int helper_do_stat;
extern pthread_cond_t helper_cond;
extern char *trigger_file;
extern char *trigger_cmd;
extern char *trigger_remote_cmd;
extern long long trigger_timeout;

extern struct thread_data *threads;

static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
{
	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
}

#define REAL_MAX_JOBS		2048

static inline int should_fsync(struct thread_data *td)
{
	if (td->last_was_sync)
		return 0;
	if (td_write(td) || td_rw(td) || td->o.override_sync)
		return 1;

	return 0;
}

/*
 * Init/option functions
 */
extern int __must_check fio_init_options(void);
extern int __must_check parse_options(int, char **);
extern int parse_jobs_ini(char *, int, int, int);
extern int parse_cmd_line(int, char **, int);
extern int fio_backend(void);
extern void reset_fio_state(void);
extern void clear_io_state(struct thread_data *);
extern int fio_options_parse(struct thread_data *, char **, int, int);
extern void fio_keywords_init(void);
extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
extern void fio_fill_default_options(struct thread_data *);
extern int fio_show_option_help(const char *);
extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
extern void fio_options_dup_and_init(struct option *);
extern void fio_options_mem_dupe(struct thread_data *);
extern void options_mem_dupe(void *data, struct fio_option *options);
extern void td_fill_rand_seeds(struct thread_data *);
extern void add_job_opts(const char **, int);
extern char *num2str(uint64_t, int, int, int, int);
extern int ioengine_load(struct thread_data *);
extern int parse_dryrun(void);
extern int fio_running_or_pending_io_threads(void);
extern int fio_set_fd_nonblocking(int, const char *);

extern uintptr_t page_mask;
extern uintptr_t page_size;
extern int initialize_fio(char *envp[]);

#define FIO_GETOPT_JOB		0x89000000
#define FIO_GETOPT_IOENGINE	0x98000000
#define FIO_NR_OPTIONS		(FIO_MAX_OPTS + 128)

/*
 * ETA/status stuff
 */
extern void print_thread_status(void);
extern void print_status_init(int);
extern char *fio_uint_to_kmg(unsigned int val);

/*
 * 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_RAMP,
	TD_SETTING_UP,
	TD_RUNNING,
	TD_PRE_READING,
	TD_VERIFYING,
	TD_FSYNCING,
	TD_FINISHING,
	TD_EXITED,
	TD_REAPED,
};

extern void td_set_runstate(struct thread_data *, int);
extern int td_bump_runstate(struct thread_data *, int);
extern void td_restore_runstate(struct thread_data *, int);

/*
 * Allow 60 seconds for a job to quit on its own, otherwise reap with
 * a vengeance.
 */
#define FIO_REAP_TIMEOUT	60

#define TERMINATE_ALL		(-1)
extern void fio_terminate_threads(int);
extern void fio_mark_td_terminate(struct thread_data *);

/*
 * Memory helpers
 */
extern int __must_check fio_pin_memory(struct thread_data *);
extern void fio_unpin_memory(struct thread_data *);
extern int __must_check allocate_io_mem(struct thread_data *);
extern void free_io_mem(struct thread_data *);
extern void free_threads_shm(void);

/*
 * Reset stats after ramp time completes
 */
extern void reset_all_stats(struct thread_data *);

/*
 * blktrace support
 */
#ifdef FIO_HAVE_BLKTRACE
extern int is_blktrace(const char *, int *);
extern int load_blktrace(struct thread_data *, const char *, int);
#endif

/*
 * Latency target helpers
 */
extern void lat_target_check(struct thread_data *);
extern void lat_target_init(struct thread_data *);
extern void lat_target_reset(struct thread_data *);

#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)	\
	if ((td)->files_index)						\
		for ((i) = 0, (f) = (td)->files[0];			\
	    	 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
		 (i)++)

#define fio_assert(td, cond)	do {	\
	if (!(cond)) {			\
		int *__foo = NULL;	\
		fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond);	\
		td_set_runstate((td), TD_EXITED);	\
		(td)->error = EFAULT;		\
		*__foo = 0;			\
	}	\
} while (0)

static inline int fio_fill_issue_time(struct thread_data *td)
{
	if (td->o.read_iolog_file ||
	    !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
		return 1;

	return 0;
}

static inline int __should_check_rate(struct thread_data *td,
				      enum fio_ddir ddir)
{
	struct thread_options *o = &td->o;

	/*
	 * If some rate setting was given, we need to check it
	 */
	if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
	    o->rate_iops_min[ddir])
		return 1;

	return 0;
}

static inline int should_check_rate(struct thread_data *td,
				    uint64_t *bytes_done)
{
	int ret = 0;

	if (bytes_done[DDIR_READ])
		ret |= __should_check_rate(td, DDIR_READ);
	if (bytes_done[DDIR_WRITE])
		ret |= __should_check_rate(td, DDIR_WRITE);
	if (bytes_done[DDIR_TRIM])
		ret |= __should_check_rate(td, DDIR_TRIM);

	return ret;
}

static inline unsigned int td_max_bs(struct thread_data *td)
{
	unsigned int max_bs;

	max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
	return max(td->o.max_bs[DDIR_TRIM], max_bs);
}

static inline unsigned int td_min_bs(struct thread_data *td)
{
	unsigned int min_bs;

	min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
	return min(td->o.min_bs[DDIR_TRIM], min_bs);
}

static inline int is_power_of_2(uint64_t val)
{
	return (val != 0 && ((val & (val - 1)) == 0));
}

/*
 * We currently only need to do locking if we have verifier threads
 * accessing our internal structures too
 */
static inline void td_io_u_lock(struct thread_data *td)
{
	if (td->o.verify_async)
		pthread_mutex_lock(&td->io_u_lock);
}

static inline void td_io_u_unlock(struct thread_data *td)
{
	if (td->o.verify_async)
		pthread_mutex_unlock(&td->io_u_lock);
}

static inline void td_io_u_free_notify(struct thread_data *td)
{
	if (td->o.verify_async)
		pthread_cond_signal(&td->free_cond);
}

extern const char *fio_get_arch_string(int);
extern const char *fio_get_os_string(int);

#ifdef FIO_INTERNAL
#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
#endif

enum {
	FIO_OUTPUT_TERSE	= 0,
	FIO_OUTPUT_JSON,
	FIO_OUTPUT_NORMAL,
};

enum {
	FIO_RAND_DIST_RANDOM	= 0,
	FIO_RAND_DIST_ZIPF,
	FIO_RAND_DIST_PARETO,
};

#define FIO_DEF_ZIPF		1.1
#define FIO_DEF_PARETO		0.2

enum {
	FIO_RAND_GEN_TAUSWORTHE = 0,
	FIO_RAND_GEN_LFSR,
};

enum {
	FIO_CPUS_SHARED		= 0,
	FIO_CPUS_SPLIT,
};

extern void exec_trigger(const char *);
extern void check_trigger_file(void);

#endif
Commit	Line	Data
ebac4655 JA	1	#ifndef FIO_H
	2	#define FIO_H
	3
	4	#include <sched.h>
	5	#include <limits.h>
	6	#include <pthread.h>
	7	#include <sys/time.h>
	8	#include <sys/resource.h>
3c39a379 JA	9	#include <errno.h>
	10	#include <stdlib.h>
	11	#include <stdio.h>
6d6f031f	12	#include <unistd.h>
34cfcdaf	13	#include <string.h>
cd14cc10	14	#include <inttypes.h>
7101d9c2	15	#include <assert.h>
ebac4655	16
317b95d0	17	#include "compiler/compiler.h"
8062f527	18	#include "thread_options.h"
01743ee1	19	#include "flist.h"
e2887563	20	#include "fifo.h"
317b95d0 JA	21	#include "arch/arch.h"
317b95d0 JA	22	#include "os/os.h"
07739b57	23	#include "mutex.h"
a3d741fa JA	24	#include "log.h"
a3d741fa JA	25	#include "debug.h"
d6aed795 JA	26	#include "file.h"
d6aed795 JA	27	#include "io_ddir.h"
dcefb588	28	#include "ioengine.h"
5995a6a4	29	#include "iolog.h"
c5c8bd5c	30	#include "helpers.h"
07b3232d	31	#include "options.h"
7eb36574	32	#include "profile.h"
ef3c94b6	33	#include "fio_time.h"
a7346816	34	#include "gettime.h"
bf2e821a	35	#include "lib/getopt.h"
2615cc4b	36	#include "lib/rand.h"
7fb6d453	37	#include "lib/rbtree.h"
dd366728	38	#include "client.h"
37db14fe	39	#include "server.h"
a64e88da	40	#include "stat.h"
9e684a49	41	#include "flow.h"
2ae0b204	42	#include "io_u_queue.h"
ebac4655	43
4700b234	44	#ifdef CONFIG_SOLARISAIO
417f0068 JA	45	#include <sys/asynch.h>
	46	#endif
	47
67bf9823	48	#ifdef CONFIG_LIBNUMA
d0b937ed YR	49	#include <linux/mempolicy.h>
	50	#include <numa.h>
	51
	52	/*
	53	* "local" is pseudo-policy
	54	*/
	55	#define MPOL_LOCAL MPOL_MAX
	56	#endif
	57
38dad62d JA	58	/*
	59	* offset generator types
	60	*/
	61	enum {
	62	RW_SEQ_SEQ = 0,
	63	RW_SEQ_IDENT,
	64	};
	65
d72be545 JA	66	enum {
	67	TD_F_VER_BACKLOG = 1,
	68	TD_F_TRIM_BACKLOG = 2,
	69	TD_F_READ_IOLOG = 4,
	70	TD_F_REFILL_BUFFERS = 8,
	71	TD_F_SCRAMBLE_BUFFERS = 16,
	72	TD_F_VER_NONE = 32,
	73	TD_F_PROFILE_OPS = 64,
bedc9dc2	74	TD_F_COMPRESS = 128,
046395d7	75	TD_F_NOIO = 256,
aee2ab67	76	TD_F_COMPRESS_LOG = 512,
ca09be4b	77	TD_F_VSTATE_SAVED = 1024,
d72be545 JA	78	};
d72be545 JA	79
d24945f0 JA	80	enum {
	81	FIO_RAND_BS_OFF = 0,
	82	FIO_RAND_VER_OFF,
	83	FIO_RAND_MIX_OFF,
	84	FIO_RAND_FILE_OFF,
	85	FIO_RAND_BLOCK_OFF,
	86	FIO_RAND_FILE_SIZE_OFF,
	87	FIO_RAND_TRIM_OFF,
	88	FIO_RAND_BUF_OFF,
d9472271 JA	89	FIO_RAND_SEQ_RAND_READ_OFF,
	90	FIO_RAND_SEQ_RAND_WRITE_OFF,
	91	FIO_RAND_SEQ_RAND_TRIM_OFF,
23ed19b0	92	FIO_RAND_START_DELAY,
5c94b008	93	FIO_DEDUPE_OFF,
d24945f0 JA	94	FIO_RAND_NR_OFFS,
	95	};
	96
2dc1bbeb JA	97	/*
	98	* This describes a single thread/process executing a fio job.
	99	*/
	100	struct thread_data {
	101	struct thread_options o;
d72be545	102	unsigned long flags;
de890a1e	103	void *eo;
e4e33258	104	char verror[FIO_VERROR_SIZE];
2dc1bbeb	105	pthread_t thread;
2f122b13	106	unsigned int thread_number;
69bdd6ba	107	unsigned int subjob_number;
2f122b13	108	unsigned int groupid;
2dc1bbeb	109	struct thread_stat ts;
7b9f733a	110
46bcd498 JA	111	int client_type;
46bcd498 JA	112
7b9f733a JA	113	struct io_log *slat_log;
	114	struct io_log *clat_log;
	115	struct io_log *lat_log;
	116	struct io_log *bw_log;
c8eeb9df	117	struct io_log *iops_log;
7b9f733a	118
aee2ab67 JA	119	struct tp_data *tp_data;
aee2ab67 JA	120
6eaf09d6	121	uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
c8eeb9df JA	122	struct timeval bw_sample_time;
c8eeb9df JA	123
6eaf09d6	124	uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
c8eeb9df	125	struct timeval iops_sample_time;
f0505a14	126
ca09be4b JA	127	/*
	128	* Tracks the last iodepth number of completed writes, if data
	129	* verification is enabled
	130	*/
	131	uint64_t *last_write_comp;
	132	unsigned int last_write_idx;
	133
c97f1ad6 JA	134	volatile int update_rusage;
c97f1ad6 JA	135	struct fio_mutex *rusage_sem;
c8aaba19 JA	136	struct rusage ru_start;
	137	struct rusage ru_end;
	138
126d65c6	139	struct fio_file **files;
d7df1d13	140	unsigned char *file_locks;
dd87b2c9	141	unsigned int files_size;
2dc1bbeb JA	142	unsigned int files_index;
2dc1bbeb JA	143	unsigned int nr_open_files;
1020a139	144	unsigned int nr_done_files;
2dc1bbeb JA	145	unsigned int nr_normal_files;
	146	union {
	147	unsigned int next_file;
d6b72507	148	struct frand_state next_file_state;
2dc1bbeb JA	149	};
2dc1bbeb JA	150	int error;
a5e371a6	151	int sig;
20e354ef	152	int done;
ca09be4b	153	int stop_io;
2dc1bbeb JA	154	pid_t pid;
	155	char *orig_buffer;
	156	size_t orig_buffer_size;
	157	volatile int terminate;
	158	volatile int runstate;
2dc1bbeb	159	unsigned int last_was_sync;
9e144189	160	enum fio_ddir last_ddir;
2dc1bbeb	161
2dc1bbeb JA	162	int mmapfd;
2dc1bbeb JA	163
843a7413 JA	164	void *iolog_buf;
843a7413 JA	165	FILE *iolog_f;
ebac4655	166
da86774e	167	char *sysfs_root;
da86774e	168
d24945f0	169	unsigned long rand_seeds[FIO_RAND_NR_OFFS];
5bfc35d7	170
d6b72507 JA	171	struct frand_state bsrange_state;
	172	struct frand_state verify_state;
	173	struct frand_state trim_state;
	174	struct frand_state delay_state;
ebac4655	175
3545a109	176	struct frand_state buf_state;
5c94b008 JA	177	struct frand_state buf_state_prev;
5c94b008 JA	178	struct frand_state dedupe_state;
3545a109	179
9e144189	180	unsigned int verify_batch;
0d29de83	181	unsigned int trim_batch;
9e144189	182
ca09be4b JA	183	struct thread_io_list *vstate;
ca09be4b JA	184
ebac4655 JA	185	int shm_id;
ebac4655 JA	186
e9c047a0 JA	187	/*
	188	* IO engine hooks, contains everything needed to submit an io_u
	189	* to any of the available IO engines.
	190	*/
2866c82d	191	struct ioengine_ops *io_ops;
ebac4655	192
e9c047a0	193	/*
422f9e4b	194	* Queue depth of io_u's that fio MIGHT do
e9c047a0	195	*/
ebac4655	196	unsigned int cur_depth;
422f9e4b RM	197
	198	/*
	199	* io_u's about to be committed
	200	*/
d8005759	201	unsigned int io_u_queued;
422f9e4b RM	202
	203	/*
	204	* io_u's submitted but not completed yet
	205	*/
	206	unsigned int io_u_in_flight;
	207
	208	/*
	209	* List of free and busy io_u's
	210	*/
2ae0b204 JA	211	struct io_u_ring io_u_requeues;
	212	struct io_u_queue io_u_freelist;
	213	struct io_u_queue io_u_all;
e8462bd8 JA	214	pthread_mutex_t io_u_lock;
	215	pthread_cond_t free_cond;
	216
	217	/*
	218	* async verify offload
	219	*/
	220	struct flist_head verify_list;
	221	pthread_t *verify_threads;
	222	unsigned int nr_verify_threads;
	223	pthread_cond_t verify_cond;
	224	int verify_thread_exit;
ebac4655	225
e9c047a0 JA	226	/*
	227	* Rate state
	228	*/
bdb6d20a	229	uint64_t rate_bps[DDIR_RWDIR_CNT];
6eaf09d6 SL	230	long rate_pending_usleep[DDIR_RWDIR_CNT];
	231	unsigned long rate_bytes[DDIR_RWDIR_CNT];
	232	unsigned long rate_blocks[DDIR_RWDIR_CNT];
	233	struct timeval lastrate[DDIR_RWDIR_CNT];
ebac4655	234
bdb6d20a JA	235	uint64_t total_io_size;
bdb6d20a JA	236	uint64_t fill_device_size;
ebac4655	237
74d6277f JA	238	/*
	239	* Issue side
	240	*/
ca09be4b	241	uint64_t io_issues[DDIR_RWDIR_CNT];
74d6277f	242	uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
cf8a46a7	243	uint64_t loops;
74d6277f JA	244
	245	/*
	246	* Completions
	247	*/
bdb6d20a JA	248	uint64_t io_blocks[DDIR_RWDIR_CNT];
	249	uint64_t this_io_blocks[DDIR_RWDIR_CNT];
	250	uint64_t io_bytes[DDIR_RWDIR_CNT];
	251	uint64_t io_skip_bytes;
	252	uint64_t this_io_bytes[DDIR_RWDIR_CNT];
	253	uint64_t zone_bytes;
cdd18ad8	254	struct fio_mutex *mutex;
ebac4655	255
e9c047a0 JA	256	/*
	257	* State for random io, a bitmap of blocks done vs not done
	258	*/
d6b72507	259	struct frand_state random_state;
ebac4655	260
ebac4655 JA	261	struct timeval start; /* start of this loop */
ebac4655 JA	262	struct timeval epoch; /* time job was started */
a61eddec	263	struct timeval last_issue;
df8fb609	264	long time_offset;
993bf48b	265	struct timeval tv_cache;
cba5460c	266	struct timeval terminate_time;
993bf48b JA	267	unsigned int tv_cache_nr;
993bf48b JA	268	unsigned int tv_cache_mask;
721938ae	269	unsigned int ramp_time_over;
ebac4655	270
3e260a46 JA	271	/*
	272	* Time since last latency_window was started
	273	*/
	274	struct timeval latency_ts;
	275	unsigned int latency_qd;
	276	unsigned int latency_qd_high;
	277	unsigned int latency_qd_low;
	278	unsigned int latency_failed;
	279	uint64_t latency_ios;
6bb58215	280	int latency_end_run;
3e260a46	281
e9c047a0 JA	282	/*
	283	* read/write mixed workload state
	284	*/
d6b72507	285	struct frand_state rwmix_state;
e4928662	286	unsigned long rwmix_issues;
e9c047a0	287	enum fio_ddir rwmix_ddir;
5736c10d	288	unsigned int ddir_seq_nr;
a6ccc7be	289
211c9b89 JA	290	/*
	291	* rand/seq mixed workload state
	292	*/
d6b72507	293	struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
211c9b89	294
e9c047a0	295	/*
8de8f047 JA	296	* IO history logs for verification. We use a tree for sorting,
8de8f047 JA	297	* if we are overwriting. Otherwise just use a fifo.
e9c047a0	298	*/
4b87898e	299	struct rb_root io_hist_tree;
01743ee1	300	struct flist_head io_hist_list;
9e144189	301	unsigned long io_hist_len;
8de8f047 JA	302
	303	/*
	304	* For IO replaying
	305	*/
01743ee1	306	struct flist_head io_log_list;
433afcb4	307
0d29de83 JA	308	/*
	309	* For tracking/handling discards
	310	*/
	311	struct flist_head trim_list;
	312	unsigned long trim_entries;
	313
1ae83d45 JA	314	struct flist_head next_rand_list;
1ae83d45 JA	315
1907dbc6 JA	316	/*
	317	* for fileservice, how often to switch to a new file
	318	*/
	319	unsigned int file_service_nr;
	320	unsigned int file_service_left;
	321	struct fio_file *file_service_file;
9c60ce64	322
44f29692 JA	323	unsigned int sync_file_range_nr;
44f29692 JA	324
9c60ce64 JA	325	/*
	326	* For generating file sizes
	327	*/
d6b72507	328	struct frand_state file_size_state;
f2bba182 RR	329
	330	/*
	331	* Error counts
	332	*/
	333	unsigned int total_err_count;
	334	int first_error;
15dc1934	335
9e684a49 DE	336	struct fio_flow *flow;
9e684a49 DE	337
15dc1934 JA	338	/*
	339	* Can be overloaded by profiles
	340	*/
7eb36574	341	struct prof_io_ops prof_io_ops;
58c55ba0	342	void *prof_data;
9a3f1100 JA	343
9a3f1100 JA	344	void *pinned_mem;
ebac4655 JA	345	};
ebac4655 JA	346
e592a06b AC	347	/*
	348	* when should interactive ETA output be generated
	349	*/
	350	enum {
	351	FIO_ETA_AUTO,
	352	FIO_ETA_ALWAYS,
	353	FIO_ETA_NEVER,
	354	};
	355
e1161c32	356	#define __td_verror(td, err, msg, func) \
ebac4655	357	do { \
21beb609	358	unsigned int ____e = (err); \
19abcd3d JA	359	if ((td)->error) \
19abcd3d JA	360	break; \
8271963e	361	(td)->error = ____e; \
f2bba182	362	if (!(td)->first_error) \
98ffb8f3	363	snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
ebac4655 JA	364	} while (0)
ebac4655 JA	365
b990b5c0	366
f2bba182 RR	367	#define td_clear_error(td) \
f2bba182 RR	368	(td)->error = 0;
e1161c32 JA	369	#define td_verror(td, err, func) \
	370	__td_verror((td), (err), strerror((err)), (func))
	371	#define td_vmsg(td, err, msg, func) \
	372	__td_verror((td), (err), (msg), (func))
b990b5c0	373
81179eec JA	374	#define __fio_stringify_1(x) #x
	375	#define __fio_stringify(x) __fio_stringify_1(x)
	376
ebac4655	377	extern int exitall_on_terminate;
11e950bd	378	extern unsigned int thread_number;
108fea77	379	extern unsigned int stat_number;
ebac4655 JA	380	extern int shm_id;
ebac4655 JA	381	extern int groupid;
f3afa57e	382	extern int output_format;
2b8c71b0	383	extern int append_terse_output;
53cdc686	384	extern int temp_stall_ts;
7078106d	385	extern uintptr_t page_mask, page_size;
4241ea8f	386	extern int read_only;
e592a06b	387	extern int eta_print;
e382e661	388	extern int eta_new_line;
d3eeeabc	389	extern unsigned long done_secs;
01f06b63	390	extern char *job_section;
be4ecfdf JA	391	extern int fio_gtod_offload;
be4ecfdf JA	392	extern int fio_gtod_cpu;
c223da83	393	extern enum fio_cs fio_clock_source;
fa80feae	394	extern int fio_clock_source_set;
a9523c6f	395	extern int warnings_fatal;
f57a9c59	396	extern int terse_version;
5c341e9a	397	extern int is_backend;
a37f69b7	398	extern int nr_clients;
e46d8091	399	extern int log_syslog;
06464907	400	extern int status_interval;
5e726d0a	401	extern const char fio_version_string[];
5ddc6707 JA	402	extern int helper_do_stat;
5ddc6707 JA	403	extern pthread_cond_t helper_cond;
ca09be4b JA	404	extern char *trigger_file;
ca09be4b JA	405	extern char *trigger_cmd;
b63efd30	406	extern char *trigger_remote_cmd;
ca09be4b	407	extern long long trigger_timeout;
ebac4655 JA	408
	409	extern struct thread_data *threads;
	410
effd6ff0	411	static inline void fio_ro_check(const struct thread_data td, struct io_u io_u)
7101d9c2 JA	412	{
	413	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
	414	}
	415
fca70358	416	#define REAL_MAX_JOBS 2048
ebac4655	417
87dc1ab1 JA	418	static inline int should_fsync(struct thread_data *td)
	419	{
	420	if (td->last_was_sync)
	421	return 0;
2dc1bbeb	422	if (td_write(td) \|\| td_rw(td) \|\| td->o.override_sync)
87dc1ab1 JA	423	return 1;
	424
	425	return 0;
	426	}
	427
8914a9d8	428	/*
214e1eca	429	* Init/option functions
8914a9d8	430	*/
0420ba6a	431	extern int __must_check fio_init_options(void);
72cb971b	432	extern int __must_check parse_options(int, char **);
46bcd498 JA	433	extern int parse_jobs_ini(char *, int, int, int);
46bcd498 JA	434	extern int parse_cmd_line(int, char **, int);
2e1df07d	435	extern int fio_backend(void);
50d16976	436	extern void reset_fio_state(void);
2e1df07d	437	extern void clear_io_state(struct thread_data *);
292cc475	438	extern int fio_options_parse(struct thread_data , char *, int, int);
74929ac2	439	extern void fio_keywords_init(void);
214e1eca	440	extern int fio_cmd_option_parse(struct thread_data , const char , char *);
de890a1e	441	extern int fio_cmd_ioengine_option_parse(struct thread_data , const char , char *);
214e1eca JA	442	extern void fio_fill_default_options(struct thread_data *);
214e1eca JA	443	extern int fio_show_option_help(const char *);
de890a1e	444	extern void fio_options_set_ioengine_opts(struct option long_options, struct thread_data td);
214e1eca	445	extern void fio_options_dup_and_init(struct option *);
de890a1e SL	446	extern void fio_options_mem_dupe(struct thread_data *);
de890a1e SL	447	extern void options_mem_dupe(void data, struct fio_option options);
5bfc35d7	448	extern void td_fill_rand_seeds(struct thread_data *);
46bcd498	449	extern void add_job_opts(const char **, int);
ca09be4b	450	extern char *num2str(uint64_t, int, int, int, int);
de890a1e	451	extern int ioengine_load(struct thread_data *);
f9633d72	452	extern int parse_dryrun(void);
046395d7	453	extern int fio_running_or_pending_io_threads(void);
3a35845f	454	extern int fio_set_fd_nonblocking(int, const char *);
1ec3d69b	455
a569b45f JA	456	extern uintptr_t page_mask;
	457	extern uintptr_t page_size;
	458	extern int initialize_fio(char *envp[]);
	459
de890a1e SL	460	#define FIO_GETOPT_JOB 0x89000000
de890a1e SL	461	#define FIO_GETOPT_IOENGINE 0x98000000
07b3232d	462	#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
8914a9d8	463
263e529f JA	464	/*
	465	* ETA/status stuff
	466	*/
	467	extern void print_thread_status(void);
	468	extern void print_status_init(int);
0a428b23	469	extern char *fio_uint_to_kmg(unsigned int val);
263e529f JA	470
	471	/*
	472	* Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
	473	* will never back again. It may cycle between running/verififying/fsyncing.
	474	* Once the thread reaches TD_EXITED, it is just waiting for the core to
	475	* reap it.
	476	*/
	477	enum {
	478	TD_NOT_CREATED = 0,
	479	TD_CREATED,
	480	TD_INITIALIZED,
b29ee5b3	481	TD_RAMP,
36d80bc7	482	TD_SETTING_UP,
263e529f	483	TD_RUNNING,
b0f65863	484	TD_PRE_READING,
263e529f JA	485	TD_VERIFYING,
263e529f JA	486	TD_FSYNCING,
3d434057	487	TD_FINISHING,
263e529f JA	488	TD_EXITED,
	489	TD_REAPED,
	490	};
	491
b29ee5b3	492	extern void td_set_runstate(struct thread_data *, int);
8edd973d JA	493	extern int td_bump_runstate(struct thread_data *, int);
	494	extern void td_restore_runstate(struct thread_data *, int);
	495
cba5460c JA	496	/*
	497	* Allow 60 seconds for a job to quit on its own, otherwise reap with
	498	* a vengeance.
	499	*/
	500	#define FIO_REAP_TIMEOUT 60
	501
cc0df00a JA	502	#define TERMINATE_ALL (-1)
cc0df00a JA	503	extern void fio_terminate_threads(int);
ebea2133	504	extern void fio_mark_td_terminate(struct thread_data *);
b29ee5b3	505
2f9ade3c JA	506	/*
	507	* Memory helpers
	508	*/
9a3f1100 JA	509	extern int __must_check fio_pin_memory(struct thread_data *);
9a3f1100 JA	510	extern void fio_unpin_memory(struct thread_data *);
b2fdda43	511	extern int __must_check allocate_io_mem(struct thread_data *);
2f9ade3c	512	extern void free_io_mem(struct thread_data *);
2bb3f0a7	513	extern void free_threads_shm(void);
2f9ade3c	514
b29ee5b3 JA	515	/*
	516	* Reset stats after ramp time completes
	517	*/
	518	extern void reset_all_stats(struct thread_data *);
	519
fb7b71a3 JA	520	/*
	521	* blktrace support
	522	*/
5e62c22a	523	#ifdef FIO_HAVE_BLKTRACE
d95b34a6 JA	524	extern int is_blktrace(const char , int );
d95b34a6 JA	525	extern int load_blktrace(struct thread_data , const char , int);
5e62c22a	526	#endif
fb7b71a3	527
3e260a46 JA	528	/*
	529	* Latency target helpers
	530	*/
	531	extern void lat_target_check(struct thread_data *);
	532	extern void lat_target_init(struct thread_data *);
6bb58215	533	extern void lat_target_reset(struct thread_data *);
3e260a46	534
34572e28 JA	535	#define for_each_td(td, i) \
34572e28 JA	536	for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
53cdc686	537	#define for_each_file(td, f, i) \
691c8fb0 JA	538	if ((td)->files_index) \
	539	for ((i) = 0, (f) = (td)->files[0]; \
	540	(i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
	541	(i)++)
53cdc686	542
0032bf9f JA	543	#define fio_assert(td, cond) do { \
0032bf9f JA	544	if (!(cond)) { \
340fd243	545	int *__foo = NULL; \
0032bf9f	546	fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
ac18ea38	547	td_set_runstate((td), TD_EXITED); \
437c9b71	548	(td)->error = EFAULT; \
340fd243	549	*__foo = 0; \
0032bf9f JA	550	} \
	551	} while (0)
	552
12d9d841 JA	553	static inline int fio_fill_issue_time(struct thread_data *td)
	554	{
	555	if (td->o.read_iolog_file \|\|
	556	!td->o.disable_clat \|\| !td->o.disable_slat \|\| !td->o.disable_bw)
	557	return 1;
	558
	559	return 0;
	560	}
	561
581e7141 JA	562	static inline int __should_check_rate(struct thread_data *td,
	563	enum fio_ddir ddir)
	564	{
	565	struct thread_options *o = &td->o;
	566
	567	/*
	568	* If some rate setting was given, we need to check it
	569	*/
	570	if (o->rate[ddir] \|\| o->ratemin[ddir] \|\| o->rate_iops[ddir] \|\|
	571	o->rate_iops_min[ddir])
	572	return 1;
	573
	574	return 0;
	575	}
	576
	577	static inline int should_check_rate(struct thread_data *td,
aa83321f	578	uint64_t *bytes_done)
581e7141 JA	579	{
	580	int ret = 0;
	581
6eaf09d6 SL	582	if (bytes_done[DDIR_READ])
	583	ret \|= __should_check_rate(td, DDIR_READ);
	584	if (bytes_done[DDIR_WRITE])
	585	ret \|= __should_check_rate(td, DDIR_WRITE);
	586	if (bytes_done[DDIR_TRIM])
	587	ret \|= __should_check_rate(td, DDIR_TRIM);
581e7141 JA	588
	589	return ret;
	590	}
	591
74f4b020 JA	592	static inline unsigned int td_max_bs(struct thread_data *td)
	593	{
	594	unsigned int max_bs;
	595
	596	max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
	597	return max(td->o.max_bs[DDIR_TRIM], max_bs);
	598	}
	599
8d916c94 JA	600	static inline unsigned int td_min_bs(struct thread_data *td)
	601	{
	602	unsigned int min_bs;
	603
	604	min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
	605	return min(td->o.min_bs[DDIR_TRIM], min_bs);
	606	}
	607
ca09be4b	608	static inline int is_power_of_2(uint64_t val)
d529ee19 JA	609	{
	610	return (val != 0 && ((val & (val - 1)) == 0));
	611	}
	612
e8462bd8 JA	613	/*
	614	* We currently only need to do locking if we have verifier threads
	615	* accessing our internal structures too
	616	*/
	617	static inline void td_io_u_lock(struct thread_data *td)
	618	{
	619	if (td->o.verify_async)
	620	pthread_mutex_lock(&td->io_u_lock);
	621	}
	622
	623	static inline void td_io_u_unlock(struct thread_data *td)
	624	{
	625	if (td->o.verify_async)
	626	pthread_mutex_unlock(&td->io_u_lock);
	627	}
	628
	629	static inline void td_io_u_free_notify(struct thread_data *td)
	630	{
	631	if (td->o.verify_async)
	632	pthread_cond_signal(&td->free_cond);
	633	}
	634
cca84643 JA	635	extern const char *fio_get_arch_string(int);
	636	extern const char *fio_get_os_string(int);
	637
e2c81040	638	#ifdef FIO_INTERNAL
05775438	639	#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
e2c81040	640	#endif
05775438	641
f3afa57e JA	642	enum {
	643	FIO_OUTPUT_TERSE = 0,
	644	FIO_OUTPUT_JSON,
	645	FIO_OUTPUT_NORMAL,
	646	};
	647
e25839d4 JA	648	enum {
	649	FIO_RAND_DIST_RANDOM = 0,
	650	FIO_RAND_DIST_ZIPF,
925fee33	651	FIO_RAND_DIST_PARETO,
e25839d4 JA	652	};
e25839d4 JA	653
c95f9404 JA	654	#define FIO_DEF_ZIPF 1.1
	655	#define FIO_DEF_PARETO 0.2
	656
8055e41d JA	657	enum {
	658	FIO_RAND_GEN_TAUSWORTHE = 0,
	659	FIO_RAND_GEN_LFSR,
	660	};
	661
c2acfbac JA	662	enum {
	663	FIO_CPUS_SHARED = 0,
	664	FIO_CPUS_SPLIT,
	665	};
	666
ca09be4b JA	667	extern void exec_trigger(const char *);
	668	extern void check_trigger_file(void);
	669
ebac4655	670	#endif