Split option handling out of init.c
[fio.git] / init.c
diff --git a/init.c b/init.c
index badd635a394f45656fc8c027c83a5ad34cea6e6c..b70ccaf8b7a68d13bffc0967490963ac775a7bf2 100644 (file)
--- a/init.c
+++ b/init.c
@@ -9,7 +9,6 @@
 #include <string.h>
 #include <errno.h>
 #include <getopt.h>
-#include <assert.h>
 #include <sys/ipc.h>
 #include <sys/shm.h>
 #include <sys/types.h>
 #include "fio.h"
 #include "parse.h"
 
-/*
- * The default options
- */
-#define DEF_BS                 (4096)
-#define DEF_TIMEOUT            (0)
-#define DEF_RATE_CYCLE         (1000)
-#define DEF_ODIRECT            (1)
-#define DEF_IO_ENGINE          (FIO_SYNCIO)
-#define DEF_IO_ENGINE_NAME     "sync"
-#define DEF_SEQUENTIAL         (1)
-#define DEF_RAND_REPEAT                (1)
-#define DEF_OVERWRITE          (1)
-#define DEF_INVALIDATE         (1)
-#define DEF_SYNCIO             (0)
-#define DEF_RANDSEED           (0xb1899bedUL)
-#define DEF_BWAVGTIME          (500)
-#define DEF_CREATE_SER         (1)
-#define DEF_CREATE_FSYNC       (1)
-#define DEF_LOOPS              (1)
-#define DEF_VERIFY             (0)
-#define DEF_STONEWALL          (0)
-#define DEF_NUMJOBS            (1)
-#define DEF_USE_THREAD         (0)
-#define DEF_FILE_SIZE          (1024 * 1024 * 1024UL)
-#define DEF_ZONE_SIZE          (0)
-#define DEF_ZONE_SKIP          (0)
-#define DEF_RWMIX_CYCLE                (500)
-#define DEF_RWMIX_READ         (50)
-#define DEF_NICE               (0)
-#define DEF_NR_FILES           (1)
-#define DEF_UNLINK             (0)
-#define DEF_WRITE_BW_LOG       (0)
-#define DEF_WRITE_LAT_LOG      (0)
-#define DEF_NO_RAND_MAP                (0)
-
-#define td_var_offset(var)     ((size_t) &((struct thread_data *)0)->var)
-
-static int str_rw_cb(void *, const char *);
-static int str_ioengine_cb(void *, const char *);
-static int str_mem_cb(void *, const char *);
-static int str_verify_cb(void *, const char *);
-static int str_lockmem_cb(void *, unsigned long *);
-#ifdef FIO_HAVE_IOPRIO
-static int str_prio_cb(void *, unsigned int *);
-static int str_prioclass_cb(void *, unsigned int *);
-#endif
-static int str_exitall_cb(void);
-static int str_cpumask_cb(void *, unsigned int *);
+static char fio_version_string[] = "fio 1.14a";
 
-/*
- * Map of job/command line options
- */
-static struct fio_option options[] = {
-       {
-               .name   = "name",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(name),
-       },
-       {
-               .name   = "directory",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(directory),
-       },
-       {
-               .name   = "filename",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(filename),
-       },
-       {
-               .name   = "rw",
-               .type   = FIO_OPT_STR,
-               .cb     = str_rw_cb,
-       },
-       {
-               .name   = "ioengine",
-               .type   = FIO_OPT_STR,
-               .cb     = str_ioengine_cb,
-       },
-       {
-               .name   = "mem",
-               .type   = FIO_OPT_STR,
-               .cb     = str_mem_cb,
-       },
-       {
-               .name   = "verify",
-               .type   = FIO_OPT_STR,
-               .cb     = str_verify_cb,
-       },
-       {
-               .name   = "write_iolog",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(write_iolog_file),
-       },
-       {
-               .name   = "read_iolog",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(read_iolog_file),
-       },
-       {
-               .name   = "exec_prerun",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(exec_prerun),
-       },
-       {
-               .name   = "exec_postrun",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(exec_postrun),
-       },
-#ifdef FIO_HAVE_IOSCHED_SWITCH
-       {
-               .name   = "ioscheduler",
-               .type   = FIO_OPT_STR_STORE,
-               .off1   = td_var_offset(ioscheduler),
-       },
-#endif
-       {
-               .name   = "size",
-               .type   = FIO_OPT_STR_VAL,
-               .off1   = td_var_offset(total_file_size),
-       },
-       {
-               .name   = "bs",
-               .type   = FIO_OPT_STR_VAL_INT,
-               .off1   = td_var_offset(bs[DDIR_READ]),
-               .off2   = td_var_offset(bs[DDIR_WRITE]),
-       },
-       {
-               .name   = "offset",
-               .type   = FIO_OPT_STR_VAL,
-               .off1   = td_var_offset(start_offset),
-       },
-       {
-               .name   = "zonesize",
-               .type   = FIO_OPT_STR_VAL,
-               .off1   = td_var_offset(zone_size),
-       },
-       {
-               .name   = "zoneskip",
-               .type   = FIO_OPT_STR_VAL,
-               .off1   = td_var_offset(zone_skip),
-       },
-       {
-               .name   = "lockmem",
-               .type   = FIO_OPT_STR_VAL,
-               .cb     = str_lockmem_cb,
-       },
-       {
-               .name   = "bsrange",
-               .type   = FIO_OPT_RANGE,
-               .off1   = td_var_offset(min_bs[DDIR_READ]),
-               .off2   = td_var_offset(max_bs[DDIR_READ]),
-               .off3   = td_var_offset(min_bs[DDIR_WRITE]),
-               .off4   = td_var_offset(max_bs[DDIR_WRITE]),
-       },
-       {
-               .name   = "nrfiles",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(nr_files),
-       },
-       {
-               .name   = "iodepth",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(iodepth),
-       },
-       {
-               .name   = "fsync",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(fsync_blocks),
-       },
-       {
-               .name   = "rwmixcycle",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rwmixcycle),
-       },
-       {
-               .name   = "rwmixread",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rwmixread),
-               .max_val= 100,
-       },
-       {
-               .name   = "rwmixwrite",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rwmixwrite),
-               .max_val= 100,
-       },
-       {
-               .name   = "nice",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(nice),
-       },
-#ifdef FIO_HAVE_IOPRIO
-       {
-               .name   = "prio",
-               .type   = FIO_OPT_INT,
-               .cb     = str_prio_cb,
-       },
-       {
-               .name   = "prioclass",
-               .type   = FIO_OPT_INT,
-               .cb     = str_prioclass_cb,
-       },
-#endif
-       {
-               .name   = "thinktime",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(thinktime)
-       },
-       {
-               .name   = "rate",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rate)
-       },
-       {
-               .name   = "ratemin",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(ratemin)
-       },
-       {
-               .name   = "ratecycle",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(ratecycle)
-       },
-       {
-               .name   = "startdelay",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(start_delay)
-       },
-       {
-               .name   = "timeout",
-               .type   = FIO_OPT_STR_VAL_TIME,
-               .off1   = td_var_offset(timeout)
-       },
-       {
-               .name   = "invalidate",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(invalidate_cache)
-       },
-       {
-               .name   = "sync",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(sync_io)
-       },
-       {
-               .name   = "bwavgtime",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(bw_avg_time)
-       },
-       {
-               .name   = "create_serialize",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(create_serialize)
-       },
-       {
-               .name   = "create_fsync",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(create_fsync)
-       },
-       {
-               .name   = "loops",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(loops)
-       },
-       {
-               .name   = "numjobs",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(numjobs)
-       },
-       {
-               .name   = "cpuload",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(cpuload)
-       },
-       {
-               .name   = "cpuchunks",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(cpucycle)
-       },
-       {
-               .name   = "direct",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(odirect)
-       },
-       {
-               .name   = "overwrite",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(overwrite)
-       },
-#ifdef FIO_HAVE_CPU_AFFINITY
-       {
-               .name   = "cpumask",
-               .type   = FIO_OPT_INT,
-               .cb     = str_cpumask_cb,
-       },
-#endif
-       {
-               .name   = "end_fsync",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(end_fsync)
-       },
-       {
-               .name   = "unlink",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(unlink),
-       },
-       {
-               .name   = "exitall",
-               .type   = FIO_OPT_STR_SET,
-               .cb     = str_exitall_cb,
-       },
-       {
-               .name   = "stonewall",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(stonewall),
-       },
-       {
-               .name   = "thread",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(thread),
-       },
-       {
-               .name   = "write_bw_log",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(write_bw_log),
-       },
-       {
-               .name   = "write_lat_log",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(write_lat_log),
-       },
-       {
-               .name   = "norandommap",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(norandommap),
-       },
-       {
-               .name   = "bs_unaligned",
-               .type   = FIO_OPT_STR_SET,
-               .off1   = td_var_offset(bs_unaligned),
-       },
-       {
-               .name = NULL,
-       },
-};
+#define FIO_RANDSEED           (0xb1899bedUL)
 
-#define FIO_JOB_OPTS   (sizeof(options) / sizeof(struct fio_option))
-#define FIO_CMD_OPTS   (16)
-#define FIO_GETOPT_JOB (0x89988998)
+static char **ini_file;
+static int max_jobs = MAX_JOBS;
+
+struct thread_data def_thread;
+struct thread_data *threads = NULL;
+
+int exitall_on_terminate = 0;
+int terse_output = 0;
+unsigned long long mlock_size = 0;
+FILE *f_out = NULL;
+FILE *f_err = NULL;
+
+int write_bw_log = 0;
+
+static int def_timeout = 0;
+static int write_lat_log = 0;
+
+static int prev_group_jobs;
 
 /*
  * Command line options. These will contain the above, plus a few
  * extra that only pertain to fio itself and not jobs.
  */
-static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
+static struct option long_options[FIO_NR_OPTIONS] = {
        {
                .name           = "output",
                .has_arg        = required_argument,
@@ -402,29 +75,30 @@ static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
                .has_arg        = no_argument,
                .val            = 'v',
        },
+       {
+               .name           = "help",
+               .has_arg        = no_argument,
+               .val            = 'h',
+       },
+       {
+               .name           = "cmdhelp",
+               .has_arg        = optional_argument,
+               .val            = 'c',
+       },
        {
                .name           = NULL,
        },
 };
 
-static int def_timeout = DEF_TIMEOUT;
-
-static char fio_version_string[] = "fio 1.9";
-
-static char **ini_file;
-static int max_jobs = MAX_JOBS;
-
-struct thread_data def_thread;
-struct thread_data *threads = NULL;
-
-int exitall_on_terminate = 0;
-int terse_output = 0;
-unsigned long long mlock_size = 0;
-FILE *f_out = NULL;
-FILE *f_err = NULL;
+FILE *get_f_out()
+{
+       return f_out;
+}
 
-static int write_lat_log = DEF_WRITE_LAT_LOG;
-static int write_bw_log = DEF_WRITE_BW_LOG;
+FILE *get_f_err()
+{
+       return f_err;
+}
 
 /*
  * Return a free job structure.
@@ -450,6 +124,9 @@ static void put_job(struct thread_data *td)
        if (td == &def_thread)
                return;
 
+       if (td->error)
+               log_info("fio: %s\n", td->verror);
+
        memset(&threads[td->thread_number - 1], 0, sizeof(*td));
        thread_number--;
 }
@@ -473,13 +150,13 @@ static void fixup_options(struct thread_data *td)
                td->iodepth = 1;
        else {
                if (!td->iodepth)
-                       td->iodepth = td->nr_files;
+                       td->iodepth = td->open_files;
        }
 
        /*
         * only really works for sequential io for now, and with 1 file
         */
-       if (td->zone_size && !td->sequential && td->nr_files == 1)
+       if (td->zone_size && td_random(td) && td->open_files == 1)
                td->zone_size = 0;
 
        /*
@@ -499,6 +176,9 @@ static void fixup_options(struct thread_data *td)
 
        td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
 
+       if (!td->file_size_high)
+               td->file_size_high = td->file_size_low;
+
        if (td_read(td) && !td_rw(td))
                td->verify = 0;
 
@@ -508,6 +188,39 @@ static void fixup_options(struct thread_data *td)
        }
        if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
                log_err("fio: bs_unaligned may not work with raw io\n");
+
+       /*
+        * thinktime_spin must be less than thinktime
+        */
+       if (td->thinktime_spin > td->thinktime)
+               td->thinktime_spin = td->thinktime;
+
+       /*
+        * The low water mark cannot be bigger than the iodepth
+        */
+       if (td->iodepth_low > td->iodepth || !td->iodepth_low) {
+               /*
+                * syslet work around - if the workload is sequential,
+                * we want to let the queue drain all the way down to
+                * avoid seeking between async threads
+                */
+               if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
+                       td->iodepth_low = 1;
+               else
+                       td->iodepth_low = td->iodepth;
+       }
+
+       /*
+        * If batch number isn't set, default to the same as iodepth
+        */
+       if (td->iodepth_batch > td->iodepth || !td->iodepth_batch)
+               td->iodepth_batch = td->iodepth;
+
+       if (td->nr_files > td->files_index)
+               td->nr_files = td->files_index;
+
+       if (td->open_files > td->nr_files || !td->open_files)
+               td->open_files = td->nr_files;
 }
 
 /*
@@ -516,7 +229,7 @@ static void fixup_options(struct thread_data *td)
 static char *to_kmg(unsigned int val)
 {
        char *buf = malloc(32);
-       char post[] = { 0, 'K', 'M', 'G', 'P', 0 };
+       char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
        char *p = post;
 
        do {
@@ -531,6 +244,92 @@ static char *to_kmg(unsigned int val)
        return buf;
 }
 
+/* External engines are specified by "external:name.o") */
+static const char *get_engine_name(const char *str)
+{
+       char *p = strstr(str, ":");
+
+       if (!p)
+               return str;
+
+       p++;
+       strip_blank_front(&p);
+       strip_blank_end(p);
+       return p;
+}
+
+static int exists_and_not_file(const char *filename)
+{
+       struct stat sb;
+
+       if (lstat(filename, &sb) == -1)
+               return 0;
+
+       if (S_ISREG(sb.st_mode))
+               return 0;
+
+       return 1;
+}
+
+/*
+ * Initialize the various random states we need (random io, block size ranges,
+ * read/write mix, etc).
+ */
+static int init_random_state(struct thread_data *td)
+{
+       unsigned long seeds[6];
+       int fd, num_maps, blocks;
+       struct fio_file *f;
+       unsigned int i;
+
+       fd = open("/dev/urandom", O_RDONLY);
+       if (fd == -1) {
+               td_verror(td, errno, "open");
+               return 1;
+       }
+
+       if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
+               td_verror(td, EIO, "read");
+               close(fd);
+               return 1;
+       }
+
+       close(fd);
+
+       os_random_seed(seeds[0], &td->bsrange_state);
+       os_random_seed(seeds[1], &td->verify_state);
+       os_random_seed(seeds[2], &td->rwmix_state);
+
+       if (td->file_service_type == FIO_FSERVICE_RANDOM)
+               os_random_seed(seeds[3], &td->next_file_state);
+
+       os_random_seed(seeds[5], &td->file_size_state);
+
+       if (!td_random(td))
+               return 0;
+
+       if (td->rand_repeatable)
+               seeds[4] = FIO_RANDSEED * td->thread_number;
+
+       if (!td->norandommap) {
+               for_each_file(td, f, i) {
+                       blocks = (f->real_file_size + td->rw_min_bs - 1) / td->rw_min_bs;
+                       num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
+                       f->file_map = malloc(num_maps * sizeof(long));
+                       if (!f->file_map) {
+                               log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n");
+                               return 1;
+                       }
+                       f->num_maps = num_maps;
+                       memset(f->file_map, 0, num_maps * sizeof(long));
+               }
+       }
+
+       os_random_seed(seeds[4], &td->random_state);
+       return 0;
+}
+
+
 /*
  * Adds a job to the list of things todo. Sanitizes the various options
  * to make sure we don't have conflicts, and initializes various
@@ -538,11 +337,13 @@ static char *to_kmg(unsigned int val)
  */
 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 {
-       const char *ddir_str[] = { "read", "write", "randread", "randwrite",
-                                  "rw", NULL, "randrw" };
-       struct stat sb;
-       int numjobs, ddir, i;
+       const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
+                                  "randread", "randwrite", "randrw" };
+       unsigned int i;
        struct fio_file *f;
+       const char *engine;
+       char fname[PATH_MAX];
+       int numjobs, file_alloced;
 
        /*
         * the def_thread is just for options, it's not a real job
@@ -550,100 +351,78 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
        if (td == &def_thread)
                return 0;
 
-       /*
-        * Set default io engine, if none set
-        */
+       engine = get_engine_name(td->ioengine);
+       td->io_ops = load_ioengine(td, engine);
        if (!td->io_ops) {
-               td->io_ops = load_ioengine(td, DEF_IO_ENGINE_NAME);
-               if (!td->io_ops) {
-                       log_err("default engine %s not there?\n", DEF_IO_ENGINE_NAME);
-                       return 1;
-               }
-       }
-
-       if (td->odirect)
-               td->io_ops->flags |= FIO_RAWIO;
-
-       fixup_options(td);
-
-       td->filetype = FIO_TYPE_FILE;
-       if (!stat(jobname, &sb)) {
-               if (S_ISBLK(sb.st_mode))
-                       td->filetype = FIO_TYPE_BD;
-               else if (S_ISCHR(sb.st_mode))
-                       td->filetype = FIO_TYPE_CHAR;
+               log_err("fio: failed to load engine %s\n", engine);
+               return 1;
        }
 
-       if (td->filename)
-               td->nr_uniq_files = 1;
+       if (td->use_thread)
+               nr_thread++;
        else
-               td->nr_uniq_files = td->nr_files;
-
-       if (td->filetype == FIO_TYPE_FILE || td->filename) {
-               char tmp[PATH_MAX];
-               int len = 0;
-               int i;
+               nr_process++;
 
-               if (td->directory && td->directory[0] != '\0')
-                       sprintf(tmp, "%s/", td->directory);
+       if (td->odirect)
+               td->io_ops->flags |= FIO_RAWIO;
 
-               td->files = malloc(sizeof(struct fio_file) * td->nr_files);
+       file_alloced = 0;
+       if (!td->filename && !td->files_index) {
+               file_alloced = 1;
 
-               for_each_file(td, f, i) {
-                       memset(f, 0, sizeof(*f));
-                       f->fd = -1;
-
-                       if (td->filename)
-                               sprintf(tmp + len, "%s", td->filename);
-                       else
-                               sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
-                       f->file_name = strdup(tmp);
+               if (td->nr_files == 1 && exists_and_not_file(jobname))
+                       add_file(td, jobname);
+               else {
+                       for (i = 0; i < td->nr_files; i++) {
+                               sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i);
+                               add_file(td, fname);
+                       }
                }
-       } else {
-               td->nr_files = 1;
-               td->files = malloc(sizeof(struct fio_file));
-               f = &td->files[0];
-
-               memset(f, 0, sizeof(*f));
-               f->fd = -1;
-               f->file_name = strdup(jobname);
        }
 
+       fixup_options(td);
+
        for_each_file(td, f, i) {
-               f->file_size = td->total_file_size / td->nr_files;
-               f->file_offset = td->start_offset;
+               if (td->directory && f->filetype == FIO_TYPE_FILE) {
+                       sprintf(fname, "%s/%s", td->directory, f->file_name);
+                       f->file_name = strdup(fname);
+               }
        }
                
-       fio_sem_init(&td->mutex, 0);
+       td->mutex = fio_sem_init(0);
 
-       td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
-       td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
-       td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
+       td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
+       td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
+       td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 
-       if (td->stonewall && td->thread_number > 1)
+       if ((td->stonewall || td->numjobs > 1) && prev_group_jobs) {
+               prev_group_jobs = 0;
                groupid++;
+       }
 
        td->groupid = groupid;
+       prev_group_jobs++;
+
+       if (init_random_state(td))
+               goto err;
 
        if (setup_rate(td))
                goto err;
 
        if (td->write_lat_log) {
-               setup_log(&td->slat_log);
-               setup_log(&td->clat_log);
+               setup_log(&td->ts.slat_log);
+               setup_log(&td->ts.clat_log);
        }
        if (td->write_bw_log)
-               setup_log(&td->bw_log);
+               setup_log(&td->ts.bw_log);
 
        if (!td->name)
                td->name = strdup(jobname);
 
-       ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
-
        if (!terse_output) {
                if (!job_add_num) {
-                       if (td->io_ops->flags & FIO_CPUIO)
-                               fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
+                       if (!strcmp(td->io_ops->name, "cpuio"))
+                               log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
                        else {
                                char *c1, *c2, *c3, *c4;
 
@@ -652,7 +431,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
                                c3 = to_kmg(td->min_bs[DDIR_WRITE]);
                                c4 = to_kmg(td->max_bs[DDIR_WRITE]);
 
-                               fprintf(f_out, "%s: (g=%d): rw=%s, odir=%d, bs=%s-%s/%s-%s, rate=%d, ioengine=%s, iodepth=%d\n", td->name, td->groupid, ddir_str[ddir], td->odirect, c1, c2, c3, c4, td->rate, td->io_ops->name, td->iodepth);
+                               log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->name, td->groupid, ddir_str[td->td_ddir], c1, c2, c3, c4, td->io_ops->name, td->iodepth);
 
                                free(c1);
                                free(c2);
@@ -660,7 +439,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
                                free(c4);
                        }
                } else if (job_add_num == 1)
-                       fprintf(f_out, "...\n");
+                       log_info("...\n");
        }
 
        /*
@@ -676,80 +455,28 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 
                td_new->numjobs = 1;
                td_new->stonewall = 0;
+
+               if (file_alloced) {
+                       td_new->filename = NULL;
+                       td_new->files_index = 0;
+                       td_new->files = NULL;
+               }
+
                job_add_num = numjobs - 1;
 
                if (add_job(td_new, jobname, job_add_num))
                        goto err;
        }
-       return 0;
-err:
-       put_job(td);
-       return -1;
-}
-
-/*
- * Initialize the various random states we need (random io, block size ranges,
- * read/write mix, etc).
- */
-int init_random_state(struct thread_data *td)
-{
-       unsigned long seeds[4];
-       int fd, num_maps, blocks, i;
-       struct fio_file *f;
-
-       if (td->io_ops->flags & FIO_CPUIO)
-               return 0;
-
-       fd = open("/dev/urandom", O_RDONLY);
-       if (fd == -1) {
-               td_verror(td, errno);
-               return 1;
-       }
-
-       if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
-               td_verror(td, EIO);
-               close(fd);
-               return 1;
-       }
-
-       close(fd);
-
-       os_random_seed(seeds[0], &td->bsrange_state);
-       os_random_seed(seeds[1], &td->verify_state);
-       os_random_seed(seeds[2], &td->rwmix_state);
-
-       if (td->sequential)
-               return 0;
 
-       if (td->rand_repeatable)
-               seeds[3] = DEF_RANDSEED;
-
-       if (!td->norandommap) {
-               for_each_file(td, f, i) {
-                       blocks = (f->file_size + td->rw_min_bs - 1) / td->rw_min_bs;
-                       num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
-                       f->file_map = malloc(num_maps * sizeof(long));
-                       f->num_maps = num_maps;
-                       memset(f->file_map, 0, num_maps * sizeof(long));
-               }
+       if (td->numjobs > 1) {
+               groupid++;
+               prev_group_jobs = 0;
        }
 
-       os_random_seed(seeds[3], &td->random_state);
        return 0;
-}
-
-static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
-{
-#ifdef FIO_HAVE_CPU_AFFINITY
-       unsigned int i;
-
-       CPU_ZERO(&cpumask);
-
-       for (i = 0; i < sizeof(int) * 8; i++) {
-               if ((1 << i) & cpu)
-                       CPU_SET(i, &cpumask);
-       }
-#endif
+err:
+       put_job(td);
+       return -1;
 }
 
 static int is_empty_or_comment(char *line)
@@ -759,6 +486,8 @@ static int is_empty_or_comment(char *line)
        for (i = 0; i < strlen(line); i++) {
                if (line[i] == ';')
                        return 1;
+               if (line[i] == '#')
+                       return 1;
                if (!isspace(line[i]) && !iscntrl(line[i]))
                        return 0;
        }
@@ -766,135 +495,10 @@ static int is_empty_or_comment(char *line)
        return 1;
 }
 
-static int str_rw_cb(void *data, const char *mem)
-{
-       struct thread_data *td = data;
-
-       if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
-               td->ddir = DDIR_READ;
-               td->sequential = 1;
-               return 0;
-       } else if (!strncmp(mem, "randread", 8)) {
-               td->ddir = DDIR_READ;
-               td->sequential = 0;
-               return 0;
-       } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
-               td->ddir = DDIR_WRITE;
-               td->sequential = 1;
-               return 0;
-       } else if (!strncmp(mem, "randwrite", 9)) {
-               td->ddir = DDIR_WRITE;
-               td->sequential = 0;
-               return 0;
-       } else if (!strncmp(mem, "rw", 2)) {
-               td->ddir = 0;
-               td->iomix = 1;
-               td->sequential = 1;
-               return 0;
-       } else if (!strncmp(mem, "randrw", 6)) {
-               td->ddir = 0;
-               td->iomix = 1;
-               td->sequential = 0;
-               return 0;
-       }
-
-       log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
-       return 1;
-}
-
-static int str_verify_cb(void *data, const char *mem)
-{
-       struct thread_data *td = data;
-
-       if (!strncmp(mem, "0", 1)) {
-               td->verify = VERIFY_NONE;
-               return 0;
-       } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
-               td->verify = VERIFY_MD5;
-               return 0;
-       } else if (!strncmp(mem, "crc32", 5)) {
-               td->verify = VERIFY_CRC32;
-               return 0;
-       }
-
-       log_err("fio: verify types: md5, crc32\n");
-       return 1;
-}
-
-static int str_mem_cb(void *data, const char *mem)
-{
-       struct thread_data *td = data;
-
-       if (!strncmp(mem, "malloc", 6)) {
-               td->mem_type = MEM_MALLOC;
-               return 0;
-       } else if (!strncmp(mem, "shm", 3)) {
-               td->mem_type = MEM_SHM;
-               return 0;
-       } else if (!strncmp(mem, "mmap", 4)) {
-               td->mem_type = MEM_MMAP;
-               return 0;
-       }
-
-       log_err("fio: mem type: malloc, shm, mmap\n");
-       return 1;
-}
-
-static int str_ioengine_cb(void *data, const char *str)
-{
-       struct thread_data *td = data;
-
-       td->io_ops = load_ioengine(td, str);
-       if (td->io_ops)
-               return 0;
-
-       log_err("fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice, cpu\n");
-       log_err("fio: or specify path to dynamic ioengine module\n");
-       return 1;
-}
-
-static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
-{
-       mlock_size = *val;
-       return 0;
-}
-
-#ifdef FIO_HAVE_IOPRIO
-static int str_prioclass_cb(void *data, unsigned int *val)
-{
-       struct thread_data *td = data;
-
-       td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
-       return 0;
-}
-
-static int str_prio_cb(void *data, unsigned int *val)
-{
-       struct thread_data *td = data;
-
-       td->ioprio |= *val;
-       return 0;
-}
-#endif
-
-static int str_exitall_cb(void)
-{
-       exitall_on_terminate = 1;
-       return 0;
-}
-
-static int str_cpumask_cb(void *data, unsigned int *val)
-{
-       struct thread_data *td = data;
-
-       fill_cpu_mask(td->cpumask, *val);
-       return 0;
-}
-
 /*
  * This is our [ini] type file parser.
  */
-int parse_jobs_ini(char *file, int stonewall_flag)
+static int parse_jobs_ini(char *file, int stonewall_flag)
 {
        unsigned int global;
        struct thread_data *td;
@@ -961,7 +565,7 @@ int parse_jobs_ini(char *file, int stonewall_flag)
                         * dump all the bad ones. Makes trial/error fixups
                         * easier on the user.
                         */
-                       ret |= parse_option(p, options, td);
+                       ret |= fio_option_parse(td, p);
                }
 
                if (!ret) {
@@ -989,39 +593,14 @@ static int fill_def_thread(void)
        }
 
        /*
-        * fill globals
+        * fill default options
         */
-       def_thread.ddir = DDIR_READ;
-       def_thread.iomix = 0;
-       def_thread.bs[DDIR_READ] = DEF_BS;
-       def_thread.bs[DDIR_WRITE] = DEF_BS;
-       def_thread.min_bs[DDIR_READ] = def_thread.min_bs[DDIR_WRITE] = 0;
-       def_thread.max_bs[DDIR_READ] = def_thread.max_bs[DDIR_WRITE] = 0;
-       def_thread.odirect = DEF_ODIRECT;
-       def_thread.ratecycle = DEF_RATE_CYCLE;
-       def_thread.sequential = DEF_SEQUENTIAL;
+       fio_fill_default_options(&def_thread);
+
        def_thread.timeout = def_timeout;
-       def_thread.overwrite = DEF_OVERWRITE;
-       def_thread.invalidate_cache = DEF_INVALIDATE;
-       def_thread.sync_io = DEF_SYNCIO;
-       def_thread.mem_type = MEM_MALLOC;
-       def_thread.bw_avg_time = DEF_BWAVGTIME;
-       def_thread.create_serialize = DEF_CREATE_SER;
-       def_thread.create_fsync = DEF_CREATE_FSYNC;
-       def_thread.loops = DEF_LOOPS;
-       def_thread.verify = DEF_VERIFY;
-       def_thread.stonewall = DEF_STONEWALL;
-       def_thread.numjobs = DEF_NUMJOBS;
-       def_thread.use_thread = DEF_USE_THREAD;
-       def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
-       def_thread.rwmixread = DEF_RWMIX_READ;
-       def_thread.nice = DEF_NICE;
-       def_thread.rand_repeatable = DEF_RAND_REPEAT;
-       def_thread.nr_files = DEF_NR_FILES;
-       def_thread.unlink = DEF_UNLINK;
        def_thread.write_bw_log = write_bw_log;
        def_thread.write_lat_log = write_lat_log;
-       def_thread.norandommap = DEF_NO_RAND_MAP;
+
 #ifdef FIO_HAVE_DISK_UTIL
        def_thread.do_disk_util = 1;
 #endif
@@ -1029,6 +608,55 @@ static int fill_def_thread(void)
        return 0;
 }
 
+static void free_shm(void)
+{
+       struct shmid_ds sbuf;
+
+       if (threads) {
+               shmdt((void *) threads);
+               threads = NULL;
+               shmctl(shm_id, IPC_RMID, &sbuf);
+       }
+}
+
+/*
+ * The thread area is shared between the main process and the job
+ * threads/processes. So setup a shared memory segment that will hold
+ * all the job info.
+ */
+static int setup_thread_area(void)
+{
+       /*
+        * 1024 is too much on some machines, scale max_jobs if
+        * we get a failure that looks like too large a shm segment
+        */
+       do {
+               size_t size = max_jobs * sizeof(struct thread_data);
+
+               shm_id = shmget(0, size, IPC_CREAT | 0600);
+               if (shm_id != -1)
+                       break;
+               if (errno != EINVAL) {
+                       perror("shmget");
+                       break;
+               }
+
+               max_jobs >>= 1;
+       } while (max_jobs);
+
+       if (shm_id == -1)
+               return 1;
+
+       threads = shmat(shm_id, NULL, 0);
+       if (threads == (void *) -1) {
+               perror("shmat");
+               return 1;
+       }
+
+       atexit(free_shm);
+       return 0;
+}
+
 static void usage(void)
 {
        printf("%s\n", fio_version_string);
@@ -1038,14 +666,16 @@ static void usage(void)
        printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
        printf("\t--minimal\tMinimal (terse) output\n");
        printf("\t--version\tPrint version info and exit\n");
+       printf("\t--help\t\tPrint this page\n");
+       printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
 }
 
 static int parse_cmd_line(int argc, char *argv[])
 {
        struct thread_data *td = NULL;
-       int c, ini_idx = 0, lidx, ret;
+       int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
 
-       while ((c = getopt_long(argc, argv, "", long_options, &lidx)) != -1) {
+       while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
                switch (c) {
                case 't':
                        def_timeout = atoi(optarg);
@@ -1070,6 +700,8 @@ static int parse_cmd_line(int argc, char *argv[])
                case 'h':
                        usage();
                        exit(0);
+               case 'c':
+                       exit(fio_show_option_help(optarg));
                case 'v':
                        printf("%s\n", fio_version_string);
                        exit(0);
@@ -1093,24 +725,24 @@ static int parse_cmd_line(int argc, char *argv[])
                                        return 0;
                        }
 
-                       ret = parse_cmd_option(opt, val, options, td);
-                       if (ret) {
-                               log_err("fio: job dropped\n");
-                               put_job(td);
-                               td = NULL;
-                       }
+                       ret = fio_cmd_option_parse(td, opt, val);
+                       if (ret)
+                               dont_add_job = 1;
                        break;
                }
                default:
-                       printf("optarg <<%s>>\n", argv[optind]);
                        break;
                }
        }
 
        if (td) {
-               ret = add_job(td, td->name ?: "fio", 0);
-               if (ret)
+               if (dont_add_job)
                        put_job(td);
+               else {
+                       ret = add_job(td, td->name ?: "fio", 0);
+                       if (ret)
+                               put_job(td);
+               }
        }
 
        while (optind < argc) {
@@ -1123,82 +755,6 @@ static int parse_cmd_line(int argc, char *argv[])
        return ini_idx;
 }
 
-static void free_shm(void)
-{
-       struct shmid_ds sbuf;
-
-       if (threads) {
-               shmdt((void *) threads);
-               threads = NULL;
-               shmctl(shm_id, IPC_RMID, &sbuf);
-       }
-}
-
-/*
- * The thread area is shared between the main process and the job
- * threads/processes. So setup a shared memory segment that will hold
- * all the job info.
- */
-static int setup_thread_area(void)
-{
-       /*
-        * 1024 is too much on some machines, scale max_jobs if
-        * we get a failure that looks like too large a shm segment
-        */
-       do {
-               size_t size = max_jobs * sizeof(struct thread_data);
-
-               shm_id = shmget(0, size, IPC_CREAT | 0600);
-               if (shm_id != -1)
-                       break;
-               if (errno != EINVAL) {
-                       perror("shmget");
-                       break;
-               }
-
-               max_jobs >>= 1;
-       } while (max_jobs);
-
-       if (shm_id == -1)
-               return 1;
-
-       threads = shmat(shm_id, NULL, 0);
-       if (threads == (void *) -1) {
-               perror("shmat");
-               return 1;
-       }
-
-       atexit(free_shm);
-       return 0;
-}
-
-/*
- * Copy the fio options into the long options map, so we mirror
- * job and cmd line options.
- */
-static void dupe_job_options(void)
-{
-       struct fio_option *o;
-       unsigned int i;
-
-       i = 0;
-       while (long_options[i].name)
-               i++;
-
-       o = &options[0];
-       while (o->name) {
-               long_options[i].name = o->name;
-               long_options[i].val = FIO_GETOPT_JOB;
-               if (o->type == FIO_OPT_STR_SET)
-                       long_options[i].has_arg = no_argument;
-               else
-                       long_options[i].has_arg = required_argument;
-
-               i++;
-               o++;
-               assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
-       }
-}
 
 int parse_options(int argc, char *argv[])
 {
@@ -1207,7 +763,7 @@ int parse_options(int argc, char *argv[])
        f_out = stdout;
        f_err = stderr;
 
-       dupe_job_options();
+       fio_options_dup_and_init(long_options);
 
        if (setup_thread_area())
                return 1;