X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=fio.h;h=6e9311be9517347892e1adc4dd8037f57676c31d;hp=38de5e3d51370936997c3ba0fe95e548ddb4fcce;hb=687270767de17dbad53c50e03e5d73d52505405c;hpb=079ad09b1ef22fa0d47c2cd2673908c5619aa41a

diff --git a/fio.h b/fio.h
index 38de5e3d..6e9311be 100644
--- a/fio.h
+++ b/fio.h
@@ -11,12 +11,14 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
+#include <getopt.h>
 
 #include "list.h"
 #include "md5.h"
 #include "crc32.h"
 #include "arch.h"
 #include "os.h"
+#include "mutex.h"
 
 #ifdef FIO_HAVE_SYSLET
 #include "syslet.h"
@@ -28,6 +30,16 @@ enum fio_ddir {
 	DDIR_SYNC,
 };
 
+enum td_ddir {
+	TD_DDIR_READ		= 1 << 0,
+	TD_DDIR_WRITE		= 1 << 1,
+	TD_DDIR_RAND		= 1 << 2,
+	TD_DDIR_RW		= TD_DDIR_READ | TD_DDIR_WRITE,
+	TD_DDIR_RANDREAD	= TD_DDIR_READ | TD_DDIR_RAND,
+	TD_DDIR_RANDWRITE	= TD_DDIR_WRITE | TD_DDIR_RAND,
+	TD_DDIR_RANDRW		= TD_DDIR_RW | TD_DDIR_RAND,
+};
+
 /*
  * Use for maintaining statistics
  */
@@ -71,11 +83,17 @@ struct io_piece {
 
 #ifdef FIO_HAVE_SYSLET
 struct syslet_req {
-	struct syslet_uatom atom;
-	long ret;
+	struct syslet_uatom atom;	/* the atom to submit */
+	struct syslet_uatom *head;	/* head of the sequence */
+	long ret;			/* syscall return value */
 };
 #endif
 
+enum {
+	IO_U_F_FREE	= 1 << 0,
+	IO_U_F_FLIGHT	= 1 << 1,
+};
+
 /*
  * The io unit
  */
@@ -124,9 +142,16 @@ struct io_u {
 		unsigned int seen;
 	};
 
+	unsigned int flags;
+
 	struct fio_file *file;
 
 	struct list_head list;
+
+	/*
+	 * Callback for io completion
+	 */
+	int (*end_io)(struct io_u *);
 };
 
 /*
@@ -188,11 +213,17 @@ enum fio_filetype {
 
 enum fio_ioengine_flags {
 	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) */
+	FIO_RAWIO	= 1 << 1,	/* some sort of direct/raw io */
+	FIO_DISKLESSIO	= 1 << 2,	/* no disk involved */
+	FIO_NOEXTEND	= 1 << 3,	/* engine can't extend file */
+	FIO_NODISKUTIL  = 1 << 4,       /* diskutil can't handle filename */
+};
+
+enum fio_file_flags {
+	FIO_FILE_OPEN		= 1 << 0,	/* file is open */
+	FIO_FILE_UNLINK		= 1 << 1,	/* unlink on close */
+	FIO_FILE_CLOSING	= 1 << 2,	/* file being closed */
+	FIO_FILE_EXISTS		= 1 << 3,	/* no need to create */
 };
 
 /*
@@ -200,6 +231,8 @@ enum fio_ioengine_flags {
  * this structure holds state information for a single file.
  */
 struct fio_file {
+	enum fio_filetype filetype;
+
 	/*
 	 * A file may not be a file descriptor, let the io engine decide
 	 */
@@ -222,10 +255,25 @@ struct fio_file {
 	unsigned int num_maps;
 	unsigned int last_free_lookup;
 
-	unsigned int unlink;
+	int references;
+	enum fio_file_flags flags;
 };
 
+/*
+ * How many depth levels to log
+ */
+#define FIO_IO_U_MAP_NR	8
+#define FIO_IO_U_LAT_NR 12
+
 struct thread_stat {
+	char *name;
+	char *verror;
+	int error;
+	int groupid;
+	pid_t pid;
+	char *description;
+	int members;
+
 	struct io_log *slat_log;
 	struct io_log *clat_log;
 	struct io_log *bw_log;
@@ -248,44 +296,44 @@ struct thread_stat {
 	unsigned long usr_time;
 	unsigned long sys_time;
 	unsigned long ctx;
-};
 
-/*
- * How many depth levels to log
- */
-#define FIO_IO_U_MAP_NR	8
-#define FIO_IO_U_LAT_NR 12
+	/*
+	 * IO depth and latency stats
+	 */
+	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[2];
 
-/*
- * This describes a single thread/process executing a fio job.
- */
-struct thread_data {
+	unsigned long long io_bytes[2];
+	unsigned long runtime[2];
+	unsigned long total_run_time;
+};
+
+struct thread_options {
+	int pad;
 	char *description;
 	char *name;
 	char *directory;
 	char *filename;
-	char verror[80];
-	pthread_t thread;
-	int thread_number;
-	int groupid;
-	struct thread_stat ts;
-	enum fio_filetype filetype;
-	struct fio_file *files;
+	char *opendir;
+	char *ioengine;
+	enum td_ddir td_ddir;
+	unsigned int iodepth;
+	unsigned int iodepth_low;
+	unsigned int iodepth_batch;
+
+	unsigned long long size;
+	unsigned long long file_size_low;
+	unsigned long long file_size_high;
+	unsigned long long start_offset;
+
+	unsigned int bs[2];
+	unsigned int min_bs[2];
+	unsigned int max_bs[2];
+
 	unsigned int nr_files;
-	unsigned int nr_uniq_files;
-	unsigned int next_file;
-	int error;
-	pid_t pid;
-	char *orig_buffer;
-	size_t orig_buffer_size;
-	volatile int terminate;
-	volatile int runstate;
-	enum fio_ddir ddir;
-	unsigned int iomix;
-	unsigned int ioprio;
-	unsigned int last_was_sync;
+	unsigned int open_files;
 
-	unsigned int sequential;
 	unsigned int odirect;
 	unsigned int invalidate_cache;
 	unsigned int create_serialize;
@@ -302,10 +350,8 @@ struct thread_data {
 	unsigned int write_bw_log;
 	unsigned int norandommap;
 	unsigned int bs_unaligned;
+	unsigned int fsync_on_close;
 
-	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;
@@ -320,11 +366,9 @@ struct thread_data {
 	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;
@@ -332,14 +376,67 @@ struct thread_data {
 	unsigned int rwmixread;
 	unsigned int rwmixwrite;
 	unsigned int nice;
+	unsigned int file_service_type;
+	unsigned int group_reporting;
 
 	char *read_iolog_file;
 	char *write_iolog_file;
+
+	/*
+	 * Pre-run and post-run shell
+	 */
+	char *exec_prerun;
+	char *exec_postrun;
+
+	unsigned int rate;
+	unsigned int ratemin;
+	unsigned int ratecycle;
+	unsigned int rate_iops;
+	unsigned int rate_iops_min;
+
+	char *ioscheduler;
+
+	/*
+	 * CPU "io" cycle burner
+	 */
+	unsigned int cpuload;
+	unsigned int cpucycle;
+};
+
+/*
+ * This describes a single thread/process executing a fio job.
+ */
+struct thread_data {
+	struct thread_options o;
+	char verror[128];
+	pthread_t thread;
+	int thread_number;
+	int groupid;
+	struct thread_stat ts;
+	struct fio_file *files;
+	unsigned int files_index;
+	unsigned int nr_open_files;
+	unsigned int nr_normal_files;
+	union {
+		unsigned int next_file;
+		os_random_state_t next_file_state;
+	};
+	int error;
+	pid_t pid;
+	char *orig_buffer;
+	size_t orig_buffer_size;
+	volatile int terminate;
+	volatile int runstate;
+	unsigned int ioprio;
+	unsigned int last_was_sync;
+
+	char *mmapfile;
+	int mmapfd;
+
 	void *iolog_buf;
 	FILE *iolog_f;
 
 	char *sysfs_root;
-	char *ioscheduler;
 
 	os_random_state_t bsrange_state;
 	os_random_state_t verify_state;
@@ -356,28 +453,21 @@ struct thread_data {
 	 * 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;
+	unsigned int io_u_queued;
 
 	/*
 	 * Rate state
 	 */
-	unsigned int rate;
-	unsigned int ratemin;
-	unsigned int ratecycle;
 	unsigned long rate_usec_cycle;
 	long rate_pending_usleep;
 	unsigned long rate_bytes;
+	unsigned long rate_blocks;
 	struct timeval lastrate;
 
-	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];
@@ -385,22 +475,15 @@ struct thread_data {
 	unsigned long long io_bytes[2];
 	unsigned long long this_io_bytes[2];
 	unsigned long long zone_bytes;
-	volatile int mutex;
+	struct fio_sem *mutex;
 
 	/*
 	 * State for random io, a bitmap of blocks done vs not done
 	 */
 	os_random_state_t random_state;
 
-	/*
-	 * CPU "io" cycle burner
-	 */
-	unsigned int cpuload;
-	unsigned int cpucycle;
-
 	struct timeval start;	/* start of this loop */
 	struct timeval epoch;	/* time job was started */
-	struct timeval end_time;/* time job ended */
 
 	/*
 	 * read/write mixed workload state
@@ -409,32 +492,64 @@ struct thread_data {
 	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;
+
+	/*
+	 * timeout handling
+	 */
+	struct timeval timeout_end;
+	struct itimerval timer;
+
+	/*
+	 * 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;
+
+	/*
+	 * For generating file sizes
+	 */
+	os_random_state_t file_size_state;
+};
+
+/*
+ * roundrobin available files, or choose one at random.
+ */
+enum {
+	FIO_FSERVICE_RANDOM	= 1,
+	FIO_FSERVICE_RR		= 2,
 };
 
-#define __td_verror(td, err, msg)					\
+/*
+ * 30 second per-io_u timeout, with 5 second intervals to avoid resetting
+ * the timer on each queue operation.
+ */
+#define IO_U_TIMEOUT_INC	5
+#define IO_U_TIMEOUT		30
+
+#define __td_verror(td, err, msg, func)					\
 	do {								\
+		if ((td)->error)					\
+			break;						\
 		int e = (err);						\
 		(td)->error = e;					\
-		snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg));	\
+		snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg));	\
 	} while (0)
 
 
-#define td_verror(td, err)	__td_verror((td), (err), strerror((err)))
-#define td_vmsg(td, err, msg)	__td_verror((td), (err), (msg))
+#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))
 
 extern int exitall_on_terminate;
 extern int thread_number;
+extern int nr_process, nr_thread;
 extern int shm_id;
 extern int groupid;
 extern int terse_output;
@@ -442,15 +557,17 @@ extern FILE *f_out;
 extern FILE *f_err;
 extern int temp_stall_ts;
 extern unsigned long long mlock_size;
+extern unsigned long page_mask, page_size;
 
 extern struct thread_data *threads;
 
-#define td_read(td)		((td)->ddir == DDIR_READ)
-#define td_write(td)		((td)->ddir == DDIR_WRITE)
-#define td_rw(td)		((td)->iomix != 0)
+#define td_read(td)		((td)->o.td_ddir & TD_DDIR_READ)
+#define td_write(td)		((td)->o.td_ddir & TD_DDIR_WRITE)
+#define td_rw(td)		(((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
+#define td_random(td)		((td)->o.td_ddir & TD_DDIR_RAND)
 
 #define BLOCKS_PER_MAP		(8 * sizeof(long))
-#define TO_MAP_BLOCK(td, f, b)	((b) - ((f)->file_offset / (td)->rw_min_bs))
+#define TO_MAP_BLOCK(td, f, b)	((b) - ((f)->file_offset / (td)->o.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))
 
@@ -460,9 +577,9 @@ static inline int should_fsync(struct thread_data *td)
 {
 	if (td->last_was_sync)
 		return 0;
-	if (td->odirect)
+	if (td->o.odirect)
 		return 0;
-	if (td_write(td) || td_rw(td) || td->override_sync)
+	if (td_write(td) || td_rw(td) || td->o.override_sync)
 		return 1;
 
 	return 0;
@@ -497,11 +614,6 @@ struct disk_util {
 	struct timeval time;
 };
 
-/*
- * Callback for io completion
- */
-typedef int (endio_handler)(struct io_u *);
-
 #define DISK_UTIL_MSEC	(250)
 
 #ifndef min
@@ -514,9 +626,9 @@ typedef int (endio_handler)(struct io_u *);
 /*
  * Log exports
  */
-extern int read_iolog_get(struct thread_data *, struct io_u *);
+extern int __must_check 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 int __must_check 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 *);
@@ -535,7 +647,6 @@ 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);
@@ -551,23 +662,37 @@ 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, int);
+extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
 extern void fill_start_time(struct timeval *);
 extern void fio_gettime(struct timeval *, void *);
+extern void set_genesis_time(void);
 
 /*
- * Init functions
+ * Init/option functions
  */
-extern int parse_options(int, char **);
-extern int init_random_state(struct thread_data *);
+extern int __must_check parse_options(int, char **);
+extern int fio_option_parse(struct thread_data *, const char *);
+extern int fio_cmd_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_dup_and_init(struct option *);
+#define FIO_GETOPT_JOB		0x89988998
+#define FIO_NR_OPTIONS		128
 
 /*
  * 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 *);
+extern int __must_check setup_files(struct thread_data *);
+extern int __must_check open_files(struct thread_data *);
+extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
+extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
+extern void generic_close_file(struct thread_data *, struct fio_file *);
+extern void add_file(struct thread_data *, const char *);
+extern void get_file(struct fio_file *);
+extern void put_file(struct thread_data *, struct fio_file *);
+extern int add_dir_files(struct thread_data *, const char *);
+extern int init_random_map(struct thread_data *);
 
 /*
  * ETA/status stuff
@@ -596,15 +721,15 @@ enum {
  * 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 *);
+extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
+extern int __must_check verify_io_u(struct io_u *);
 
 /*
  * Memory helpers
  */
-extern int fio_pin_memory(void);
+extern int __must_check fio_pin_memory(void);
 extern void fio_unpin_memory(void);
-extern int allocate_io_mem(struct thread_data *);
+extern int __must_check allocate_io_mem(struct thread_data *);
 extern void free_io_mem(struct thread_data *);
 
 /*
@@ -615,43 +740,25 @@ extern struct io_u *__get_io_u(struct thread_data *);
 extern struct io_u *get_io_u(struct thread_data *);
 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 *);
+extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
+extern long __must_check io_u_queued_complete(struct thread_data *, int);
 extern void io_u_queued(struct thread_data *, struct io_u *);
+extern void io_u_log_error(struct thread_data *, struct io_u *);
+extern void io_u_init_timeout(void);
+extern void io_u_set_timeout(struct thread_data *);
+extern void io_u_mark_depth(struct thread_data *, struct io_u *);
 
 /*
  * 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.
- * 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)++;
-}
+extern int __must_check td_io_init(struct thread_data *);
+extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
+extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
+extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
+extern int __must_check td_io_getevents(struct thread_data *, int, int, struct timespec *);
+extern int __must_check td_io_commit(struct thread_data *);
+extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
+extern void td_io_close_file(struct thread_data *, struct fio_file *);
 
 /*
  * If logging output to a file, stderr should go to both stderr and f_err
@@ -662,6 +769,11 @@ static inline void fio_sem_up(volatile int *sem)
 		fprintf(stderr, ##args);	\
 	} while (0)
 
+#define log_info(args...)	fprintf(f_out, ##args)
+
+FILE *get_f_out(void);
+FILE *get_f_err(void);
+
 struct ioengine_ops {
 	struct list_head list;
 	char name[16];
@@ -676,15 +788,16 @@ struct ioengine_ops {
 	struct io_u *(*event)(struct thread_data *, int);
 	int (*cancel)(struct thread_data *, struct io_u *);
 	void (*cleanup)(struct thread_data *);
+	int (*open_file)(struct thread_data *, struct fio_file *);
+	void (*close_file)(struct thread_data *, struct fio_file *);
 	void *data;
 	void *dlhandle;
-	unsigned long priv;
 };
 
-#define FIO_IOOPS_VERSION	5
+#define FIO_IOOPS_VERSION	6
 
 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
-extern int register_ioengine(struct ioengine_ops *);
+extern void register_ioengine(struct ioengine_ops *);
 extern void unregister_ioengine(struct ioengine_ops *);
 extern void close_ioengine(struct thread_data *);
 
@@ -698,7 +811,7 @@ extern void close_ioengine(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)	\
-	for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++)
+	for ((i) = 0, (f) = &(td)->files[0]; (i) < (td)->o.nr_files; (i)++, (f)++)
 
 #define fio_assert(td, cond)	do {	\
 	if (!(cond)) {			\