Add zero_buffers option

[fio.git] / fio.h

diff --git a/fio.h b/fio.h
index c34c00c064126934eec67ae1a543097cc158ce36..9490edc11e1a2ea924f1dea3bf75f2d9e36d0fdf 100644 (file)
--- a/fio.h
+++ b/fio.h
@@ -13,11 +13,13 @@
 #include <string.h>
 #include <getopt.h>
 
+#include "compiler/compiler.h"
 #include "list.h"
+#include "rbtree.h"
 #include "md5.h"
 #include "crc32.h"
-#include "arch.h"
-#include "os.h"
+#include "arch/arch.h"
+#include "os/os.h"
 #include "mutex.h"
 
 #ifdef FIO_HAVE_SYSLET
@@ -78,7 +80,10 @@ struct io_log {
  * When logging io actions, this matches a single sent io_u
  */
 struct io_piece {
-       struct list_head list;
+       union {
+               struct rb_node rb_node;
+               struct list_head list;
+       };
        struct fio_file *file;
        unsigned long long offset;
        unsigned long len;
@@ -98,6 +103,8 @@ enum {
        IO_U_F_FLIGHT   = 1 << 1,
 };
 
+struct thread_data;
+
 /*
  * The io unit
  */
@@ -128,6 +135,7 @@ struct io_u {
        void *buf;
        unsigned long buflen;
        unsigned long long offset;
+       unsigned long long endpos;
 
        /*
         * IO engine state, may be different from above when we get
@@ -158,7 +166,7 @@ struct io_u {
        /*
         * Callback for io completion
         */
-       int (*end_io)(struct io_u *);
+       int (*end_io)(struct thread_data *, struct io_u *);
 };
 
 /*
@@ -176,6 +184,7 @@ enum {
        VERIFY_NONE = 0,                /* no verification */
        VERIFY_MD5,                     /* md5 sum data blocks */
        VERIFY_CRC32,                   /* crc32 sum data blocks */
+       VERIFY_NULL,                    /* pretend to verify */
 };
 
 /*
@@ -216,6 +225,7 @@ enum fio_filetype {
        FIO_TYPE_FILE = 1,              /* plain file */
        FIO_TYPE_BD,                    /* block device */
        FIO_TYPE_CHAR,                  /* character device */
+       FIO_TYPE_PIPE,                  /* pipe */
 };
 
 enum fio_ioengine_flags {
@@ -230,7 +240,11 @@ 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 */
+       FIO_FILE_EXISTS         = 1 << 3,       /* file there */
+       FIO_FILE_EXTEND         = 1 << 4,       /* needs extend */
+       FIO_FILE_NOSORT         = 1 << 5,       /* don't sort verify blocks */
+       FIO_FILE_DONE           = 1 << 6,       /* io completed to this file */
+       FIO_SIZE_KNOWN          = 1 << 7,       /* size has been set */
 };
 
 /*
@@ -247,11 +261,20 @@ struct fio_file {
                unsigned long file_data;
                int fd;
        };
+
+       /*
+        * filename and possible memory mapping
+        */
        char *file_name;
        void *mmap;
-       unsigned long long file_size;
+
+       /*
+        * size of the file, offset into file, and io size from that offset
+        */
        unsigned long long real_file_size;
        unsigned long long file_offset;
+       unsigned long long io_size;
+
        unsigned long long last_pos;
        unsigned long long last_completed_pos;
 
@@ -310,6 +333,7 @@ struct thread_stat {
        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];
+       unsigned long short_io_u[2];
 
        unsigned long long io_bytes[2];
        unsigned long runtime[2];
@@ -349,6 +373,7 @@ struct thread_options {
        unsigned int end_fsync;
        unsigned int sync_io;
        unsigned int verify;
+       unsigned int verifysort;
        unsigned int use_thread;
        unsigned int unlink;
        unsigned int do_disk_util;
@@ -386,6 +411,8 @@ struct thread_options {
        unsigned int nice;
        unsigned int file_service_type;
        unsigned int group_reporting;
+       unsigned int fadvise_hint;
+       unsigned int zero_buffers;
 
        char *read_iolog_file;
        char *write_iolog_file;
@@ -426,6 +453,7 @@ struct thread_data {
        struct fio_file *files;
        unsigned int files_index;
        unsigned int nr_open_files;
+       unsigned int nr_done_files;
        unsigned int nr_normal_files;
        union {
                unsigned int next_file;
@@ -477,7 +505,6 @@ struct thread_data {
        unsigned long rate_blocks;
        struct timeval lastrate;
 
-       unsigned long long io_size;
        unsigned long long total_io_size;
 
        unsigned long io_issues[2];
@@ -507,9 +534,15 @@ struct thread_data {
        unsigned int ddir_nr;
 
        /*
-        * IO historic logs
+        * 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 list_head io_hist_list;
+
+       /*
+        * For IO replaying
+        */
        struct list_head io_log_list;
 
        /*
@@ -618,8 +651,9 @@ struct disk_util {
        struct list_head list;
 
        char *name;
+       char *sysfs_root;
        char path[256];
-       dev_t dev;
+       int major, minor;
 
        struct disk_util_stat dus;
        struct disk_util_stat last_dus;
@@ -690,6 +724,8 @@ 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 *);
+extern void options_mem_dupe(struct thread_data *);
+extern void options_mem_free(struct thread_data *);
 #define FIO_GETOPT_JOB         0x89988998
 #define FIO_NR_OPTIONS         128
 
@@ -707,6 +743,7 @@ 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 *);
+extern void dup_files(struct thread_data *, struct thread_data *);
 
 /*
  * ETA/status stuff
@@ -714,6 +751,21 @@ extern int init_random_map(struct thread_data *);
 extern void print_thread_status(void);
 extern void print_status_init(int);
 
+/*
+ * disk util stuff
+ */
+#ifdef FIO_HAVE_DISK_UTIL
+extern void show_disk_util(void);
+extern void disk_util_timer_arm(void);
+extern void init_disk_util(struct thread_data *);
+extern void update_io_ticks(void);
+#else
+#define show_disk_util()
+#define disk_util_timer_arm()
+#define init_disk_util(td)
+#define update_io_ticks()
+#endif
+
 /*
  * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
  * will never back again. It may cycle between running/verififying/fsyncing.
@@ -736,7 +788,7 @@ enum {
  */
 extern void populate_verify_io_u(struct thread_data *, 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 *);
+extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
 
 /*
  * Memory helpers
@@ -808,7 +860,7 @@ struct ioengine_ops {
        void *dlhandle;
 };
 
-#define FIO_IOOPS_VERSION      6
+#define FIO_IOOPS_VERSION      7
 
 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
 extern void register_ioengine(struct ioengine_ops *);
@@ -837,4 +889,10 @@ extern void close_ioengine(struct thread_data *);
        }       \
 } while (0)
 
+static inline void clear_error(struct thread_data *td)
+{
+       td->error = 0;
+       td->verror[0] = '\0';
+}
+
 #endif