init: fix missing dlhandle reference put
[fio.git] / init.c
diff --git a/init.c b/init.c
index 9113865027528f56b1d546c2f29a031c011943db..f7d79c1c8a210b0eb5530602b881f18178eccffb 100644 (file)
--- a/init.c
+++ b/init.c
@@ -11,6 +11,7 @@
 #include <sys/ipc.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <dlfcn.h>
 
 #include "fio.h"
 #ifndef FIO_NO_HAVE_SHM_H
@@ -31,6 +32,8 @@
 #include "oslib/strcasestr.h"
 
 #include "crc/test.h"
+#include "lib/pow2.h"
+#include "lib/memcpy.h"
 
 const char fio_version_string[] = FIO_VERSION;
 
@@ -39,7 +42,6 @@ const char fio_version_string[] = FIO_VERSION;
 static char **ini_file;
 static int max_jobs = FIO_MAX_JOBS;
 static int dump_cmdline;
-static long long def_timeout;
 static int parse_only;
 
 static struct thread_data def_thread;
@@ -48,9 +50,9 @@ static char **job_sections;
 static int nr_job_sections;
 
 int exitall_on_terminate = 0;
-int exitall_on_terminate_error = 0;
 int output_format = FIO_OUTPUT_NORMAL;
 int eta_print = FIO_ETA_AUTO;
+unsigned int eta_interval_msec = 1000;
 int eta_new_line = 0;
 FILE *f_out = NULL;
 FILE *f_err = NULL;
@@ -79,7 +81,7 @@ unsigned int fio_debug_jobno = -1;
 unsigned int *fio_debug_jobp = NULL;
 
 static char cmd_optstr[256];
-static int did_arg;
+static bool did_arg;
 
 #define FIO_CLIENT_FLAG                (1 << 16)
 
@@ -93,11 +95,6 @@ static struct option l_opts[FIO_NR_OPTIONS] = {
                .has_arg        = required_argument,
                .val            = 'o' | FIO_CLIENT_FLAG,
        },
-       {
-               .name           = (char *) "timeout",
-               .has_arg        = required_argument,
-               .val            = 't' | FIO_CLIENT_FLAG,
-       },
        {
                .name           = (char *) "latency-log",
                .has_arg        = required_argument,
@@ -105,7 +102,7 @@ static struct option l_opts[FIO_NR_OPTIONS] = {
        },
        {
                .name           = (char *) "bandwidth-log",
-               .has_arg        = required_argument,
+               .has_arg        = no_argument,
                .val            = 'b' | FIO_CLIENT_FLAG,
        },
        {
@@ -158,6 +155,11 @@ static struct option l_opts[FIO_NR_OPTIONS] = {
                .has_arg        = required_argument,
                .val            = 'e' | FIO_CLIENT_FLAG,
        },
+       {
+               .name           = (char *) "eta-interval",
+               .has_arg        = required_argument,
+               .val            = 'O' | FIO_CLIENT_FLAG,
+       },
        {
                .name           = (char *) "eta-newline",
                .has_arg        = required_argument,
@@ -239,6 +241,11 @@ static struct option l_opts[FIO_NR_OPTIONS] = {
                .has_arg        = optional_argument,
                .val            = 'G',
        },
+       {
+               .name           = (char *) "memcpytest",
+               .has_arg        = optional_argument,
+               .val            = 'M',
+       },
        {
                .name           = (char *) "idle-prof",
                .has_arg        = required_argument,
@@ -300,7 +307,6 @@ void free_threads_shm(void)
 static void free_shm(void)
 {
        if (threads) {
-               file_hash_exit();
                flow_exit();
                fio_debug_jobp = NULL;
                free_threads_shm();
@@ -311,8 +317,9 @@ static void free_shm(void)
        free(trigger_remote_cmd);
        trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 
-       options_free(fio_options, &def_thread);
+       options_free(fio_options, &def_thread.o);
        fio_filelock_exit();
+       file_hash_exit();
        scleanup();
 }
 
@@ -324,8 +331,6 @@ static void free_shm(void)
  */
 static int setup_thread_area(void)
 {
-       void *hash;
-
        if (threads)
                return 0;
 
@@ -336,7 +341,6 @@ static int setup_thread_area(void)
        do {
                size_t size = max_jobs * sizeof(struct thread_data);
 
-               size += file_hash_size;
                size += sizeof(unsigned int);
 
 #ifndef CONFIG_NO_SHM
@@ -365,27 +369,19 @@ static int setup_thread_area(void)
                perror("shmat");
                return 1;
        }
+       if (shm_attach_to_open_removed())
+               shmctl(shm_id, IPC_RMID, NULL);
 #endif
 
        memset(threads, 0, max_jobs * sizeof(struct thread_data));
-       hash = (void *) threads + max_jobs * sizeof(struct thread_data);
-       fio_debug_jobp = (void *) hash + file_hash_size;
+       fio_debug_jobp = (unsigned int *)(threads + max_jobs);
        *fio_debug_jobp = -1;
-       file_hash_init(hash);
 
        flow_init();
 
        return 0;
 }
 
-static void set_cmd_options(struct thread_data *td)
-{
-       struct thread_options *o = &td->o;
-
-       if (!o->timeout)
-               o->timeout = def_timeout;
-}
-
 static void dump_print_option(struct print_option *p)
 {
        const char *delim;
@@ -451,15 +447,13 @@ static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 /*
  * Return a free job structure.
  */
-static struct thread_data *get_new_job(int global, struct thread_data *parent,
-                                      int preserve_eo, const char *jobname)
+static struct thread_data *get_new_job(bool global, struct thread_data *parent,
+                                      bool preserve_eo, const char *jobname)
 {
        struct thread_data *td;
 
-       if (global) {
-               set_cmd_options(&def_thread);
+       if (global)
                return &def_thread;
-       }
        if (setup_thread_area()) {
                log_err("error: failed to setup shm segment\n");
                return NULL;
@@ -478,6 +472,7 @@ static struct thread_data *get_new_job(int global, struct thread_data *parent,
                copy_opt_list(td, parent);
 
        td->io_ops = NULL;
+       td->io_ops_init = 0;
        if (!preserve_eo)
                td->eo = NULL;
 
@@ -497,7 +492,6 @@ static struct thread_data *get_new_job(int global, struct thread_data *parent,
        if (!parent->o.group_reporting || parent == &def_thread)
                stat_number++;
 
-       set_cmd_options(td);
        return td;
 }
 
@@ -542,7 +536,7 @@ static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 
        td->rate_next_io_time[ddir] = 0;
        td->rate_io_issue_bytes[ddir] = 0;
-       td->last_usec = 0;
+       td->last_usec[ddir] = 0;
        return 0;
 }
 
@@ -586,6 +580,17 @@ static unsigned long long get_rand_start_delay(struct thread_data *td)
        return delayrange;
 }
 
+/*
+ * <3 Johannes
+ */
+static unsigned int gcd(unsigned int m, unsigned int n)
+{
+       if (!n)
+               return m;
+
+       return gcd(n, m % n);
+}
+
 /*
  * Lazy way of fixing up options that depend on each other. We could also
  * define option callback handlers, but this is easier.
@@ -595,7 +600,7 @@ static int fixup_options(struct thread_data *td)
        struct thread_options *o = &td->o;
        int ret = 0;
 
-#ifndef FIO_HAVE_PSHARED_MUTEX
+#ifndef CONFIG_PSHARED
        if (!o->use_thread) {
                log_info("fio: this platform does not support process shared"
                         " mutexes, forcing use of threads. Use the 'thread'"
@@ -628,7 +633,7 @@ static int fixup_options(struct thread_data *td)
        /*
         * Reads can do overwrites, we always need to pre-create the file
         */
-       if (td_read(td) || td_rw(td))
+       if (td_read(td))
                o->overwrite = 1;
 
        if (!o->min_bs[DDIR_READ])
@@ -706,6 +711,23 @@ static int fixup_options(struct thread_data *td)
        if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
                o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 
+       /*
+        * There's no need to check for in-flight overlapping IOs if the job
+        * isn't changing data or the maximum iodepth is guaranteed to be 1
+        */
+       if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
+           (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
+               o->serialize_overlap = 0;
+       /*
+        * Currently can't check for overlaps in offload mode
+        */
+       if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
+               log_err("fio: checking for in-flight overlaps when the "
+                       "io_submit_mode is offload is not supported\n");
+               o->serialize_overlap = 0;
+               ret = warnings_fatal;
+       }
+
        if (o->nr_files > td->files_index)
                o->nr_files = td->files_index;
 
@@ -739,13 +761,30 @@ static int fixup_options(struct thread_data *td)
                o->size = -1ULL;
 
        if (o->verify != VERIFY_NONE) {
-               if (td_write(td) && o->do_verify && o->numjobs > 1) {
-                       log_info("Multiple writers may overwrite blocks that "
-                               "belong to other jobs. This can cause "
+               if (td_write(td) && o->do_verify && o->numjobs > 1 &&
+                   (o->filename ||
+                    !(o->unique_filename &&
+                      strstr(o->filename_format, "$jobname") &&
+                      strstr(o->filename_format, "$jobnum") &&
+                      strstr(o->filename_format, "$filenum")))) {
+                       log_info("fio: multiple writers may overwrite blocks "
+                               "that belong to other jobs. This can cause "
                                "verification failures.\n");
                        ret = warnings_fatal;
                }
 
+               /*
+                * Warn if verification is requested but no verification of any
+                * kind can be started due to time constraints
+                */
+               if (td_write(td) && o->do_verify && o->timeout &&
+                   o->time_based && !td_read(td) && !o->verify_backlog) {
+                       log_info("fio: verification read phase will never "
+                                "start because write phase uses all of "
+                                "runtime\n");
+                       ret = warnings_fatal;
+               }
+
                if (!fio_option_is_set(o, refill_buffers))
                        o->refill_buffers = 1;
 
@@ -761,10 +800,20 @@ static int fixup_options(struct thread_data *td)
                        o->verify_interval = o->min_bs[DDIR_WRITE];
                else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
                        o->verify_interval = o->min_bs[DDIR_READ];
+
+               /*
+                * Verify interval must be a factor or both min and max
+                * write size
+                */
+               if (o->verify_interval % o->min_bs[DDIR_WRITE] ||
+                   o->verify_interval % o->max_bs[DDIR_WRITE])
+                       o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
+                                                       o->max_bs[DDIR_WRITE]);
        }
 
        if (o->pre_read) {
-               o->invalidate_cache = 0;
+               if (o->invalidate_cache)
+                       o->invalidate_cache = 0;
                if (td_ioengine_flagged(td, FIO_PIPEIO)) {
                        log_info("fio: cannot pre-read files with an IO engine"
                                 " that isn't seekable. Pre-read disabled.\n");
@@ -779,6 +828,11 @@ static int fixup_options(struct thread_data *td)
                        o->unit_base = 8;
        }
 
+#ifndef FIO_HAVE_ANY_FALLOCATE
+       /* Platform doesn't support any fallocate so force it to none */
+       o->fallocate_mode = FIO_FALLOCATE_NONE;
+#endif
+
 #ifndef CONFIG_FDATASYNC
        if (o->fdatasync_blocks) {
                log_info("fio: this platform does not support fdatasync()"
@@ -796,7 +850,7 @@ static int fixup_options(struct thread_data *td)
         * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
         * so fail if we're passed those flags
         */
-       if (td_ioengine_flagged(td, FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
+       if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
                log_err("fio: Windows does not support direct or non-buffered io with"
                                " the synchronous ioengines. Use the 'windowsaio' ioengine"
                                " with 'direct=1' and 'iodepth=1' instead.\n");
@@ -814,38 +868,41 @@ static int fixup_options(struct thread_data *td)
                if (o->compress_percentage == 100) {
                        o->zero_buffers = 1;
                        o->compress_percentage = 0;
-               } else if (!fio_option_is_set(o, refill_buffers))
+               } else if (!fio_option_is_set(o, refill_buffers)) {
                        o->refill_buffers = 1;
+                       td->flags |= TD_F_REFILL_BUFFERS;
+               }
        }
 
        /*
         * Using a non-uniform random distribution excludes usage of
         * a random map
         */
-       if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
-               td->o.norandommap = 1;
+       if (o->random_distribution != FIO_RAND_DIST_RANDOM)
+               o->norandommap = 1;
 
        /*
         * If size is set but less than the min block size, complain
         */
        if (o->size && o->size < td_min_bs(td)) {
-               log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
+               log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
+                       (unsigned long long) o->size, td_min_bs(td));
                ret = 1;
        }
 
        /*
         * O_ATOMIC implies O_DIRECT
         */
-       if (td->o.oatomic)
-               td->o.odirect = 1;
+       if (o->oatomic)
+               o->odirect = 1;
 
        /*
         * If randseed is set, that overrides randrepeat
         */
-       if (fio_option_is_set(&td->o, rand_seed))
-               td->o.rand_repeatable = 0;
+       if (fio_option_is_set(o, rand_seed))
+               o->rand_repeatable = 0;
 
-       if (td_ioengine_flagged(td, FIO_NOEXTEND) && td->o.file_append) {
+       if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
                log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
                ret = 1;
        }
@@ -860,69 +917,35 @@ static int fixup_options(struct thread_data *td)
        if (!td->loops)
                td->loops = 1;
 
-       if (td->o.block_error_hist && td->o.nr_files != 1) {
+       if (o->block_error_hist && o->nr_files != 1) {
                log_err("fio: block error histogram only available "
                        "with a single file per job, but %d files "
-                       "provided\n", td->o.nr_files);
+                       "provided\n", o->nr_files);
                ret = 1;
        }
 
-       return ret;
-}
-
-/*
- * This function leaks the buffer
- */
-char *fio_uint_to_kmg(unsigned int val)
-{
-       char *buf = malloc(32);
-       char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
-       char *p = post;
-
-       do {
-               if (val & 1023)
-                       break;
-
-               val >>= 10;
-               p++;
-       } while (*p);
-
-       snprintf(buf, 32, "%u%c", val, *p);
-       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_regfile(const char *filename)
-{
-       struct stat sb;
-
-       if (lstat(filename, &sb) == -1)
-               return 0;
+       if (fio_option_is_set(o, clat_percentiles) &&
+           !fio_option_is_set(o, lat_percentiles)) {
+               o->lat_percentiles = !o->clat_percentiles;
+       } else if (fio_option_is_set(o, lat_percentiles) &&
+                  !fio_option_is_set(o, clat_percentiles)) {
+               o->clat_percentiles = !o->lat_percentiles;
+       } else if (fio_option_is_set(o, lat_percentiles) &&
+                  fio_option_is_set(o, clat_percentiles) &&
+                  o->lat_percentiles && o->clat_percentiles) {
+               log_err("fio: lat_percentiles and clat_percentiles are "
+                       "mutually exclusive\n");
+               ret = 1;
+       }
 
-#ifndef WIN32 /* NOT Windows */
-       if (S_ISREG(sb.st_mode))
-               return 0;
-#else
-       /* \\.\ is the device namespace in Windows, where every file
-        * is a device node */
-       if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
-               return 0;
-#endif
+       /*
+        * Fix these up to be nsec internally
+        */
+       o->max_latency *= 1000ULL;
+       o->latency_target *= 1000ULL;
+       o->latency_window *= 1000ULL;
 
-       return 1;
+       return ret;
 }
 
 static void init_rand_file_service(struct thread_data *td)
@@ -947,9 +970,9 @@ void td_fill_verify_state_seed(struct thread_data *td)
        bool use64;
 
        if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
-               use64 = 1;
+               use64 = true;
        else
-               use64 = 0;
+               use64 = false;
 
        init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
                use64);
@@ -959,7 +982,22 @@ static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 {
        int i;
 
-       init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF], use64);
+       /*
+        * trimwrite is special in that we need to generate the same
+        * offsets to get the "write after trim" effect. If we are
+        * using bssplit to set buffer length distributions, ensure that
+        * we seed the trim and write generators identically.
+        */
+       if (td_trimwrite(td)) {
+               init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+       } else {
+               init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+               init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
+       }
+
        td_fill_verify_state_seed(td);
        init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
 
@@ -971,7 +1009,9 @@ static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
        init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
        init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
        init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
-       init_rand_seed(&td->poisson_state, td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
+       init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
+       init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
+       init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
        init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
        init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
 
@@ -1003,9 +1043,9 @@ void td_fill_rand_seeds(struct thread_data *td)
        }
 
        if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
-               use64 = 1;
+               use64 = true;
        else
-               use64 = 0;
+               use64 = false;
 
        td_fill_rand_seeds_internal(td, use64);
 
@@ -1019,22 +1059,46 @@ void td_fill_rand_seeds(struct thread_data *td)
  */
 int ioengine_load(struct thread_data *td)
 {
-       const char *engine;
-
-       /*
-        * Engine has already been loaded.
-        */
-       if (td->io_ops)
-               return 0;
        if (!td->o.ioengine) {
                log_err("fio: internal fault, no IO engine specified\n");
                return 1;
        }
 
-       engine = get_engine_name(td->o.ioengine);
-       td->io_ops = load_ioengine(td, engine);
+       if (td->io_ops) {
+               struct ioengine_ops *ops;
+               void *dlhandle;
+
+               /* An engine is loaded, but the requested ioengine
+                * may have changed.
+                */
+               if (!strcmp(td->io_ops->name, td->o.ioengine)) {
+                       /* The right engine is already loaded */
+                       return 0;
+               }
+
+               /*
+                * Name of file and engine may be different, load ops
+                * for this name and see if they match. If they do, then
+                * the engine is unchanged.
+                */
+               dlhandle = td->io_ops_dlhandle;
+               ops = load_ioengine(td);
+               if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
+                       if (dlhandle)
+                               dlclose(dlhandle);
+                       return 0;
+               }
+
+               if (dlhandle && dlhandle != td->io_ops_dlhandle)
+                       dlclose(dlhandle);
+
+               /* Unload the old engine. */
+               free_ioengine(td);
+       }
+
+       td->io_ops = load_ioengine(td);
        if (!td->io_ops) {
-               log_err("fio: failed to load engine %s\n", engine);
+               log_err("fio: failed to load engine\n");
                return 1;
        }
 
@@ -1062,7 +1126,7 @@ int ioengine_load(struct thread_data *td)
                 */
                if (origeo) {
                        memcpy(td->eo, origeo, td->io_ops->option_struct_size);
-                       options_mem_dupe(td->eo, td->io_ops->options);
+                       options_mem_dupe(td->io_ops->options, td->eo);
                } else {
                        memset(td->eo, 0, td->io_ops->option_struct_size);
                        fill_default_options(td->eo, td->io_ops->options);
@@ -1080,6 +1144,7 @@ int ioengine_load(struct thread_data *td)
 static void init_flags(struct thread_data *td)
 {
        struct thread_options *o = &td->o;
+       int i;
 
        if (o->verify_backlog)
                td->flags |= TD_F_VER_BACKLOG;
@@ -1106,6 +1171,16 @@ static void init_flags(struct thread_data *td)
 
        if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
                td->flags |= TD_F_NEED_LOCK;
+
+       if (o->mem_type == MEM_CUDA_MALLOC)
+               td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
+
+       for (i = 0; i < DDIR_RWDIR_CNT; i++) {
+               if (option_check_rate(td, i)) {
+                       td->flags |= TD_F_CHECK_RATE;
+                       break;
+               }
+       }
 }
 
 static int setup_random_seeds(struct thread_data *td)
@@ -1113,8 +1188,12 @@ static int setup_random_seeds(struct thread_data *td)
        unsigned long seed;
        unsigned int i;
 
-       if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed))
-               return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
+       if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
+               int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
+               if (!ret)
+                       td_fill_rand_seeds(td);
+               return ret;
+       }
 
        seed = td->o.rand_seed;
        for (i = 0; i < 4; i++)
@@ -1156,7 +1235,7 @@ static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 
        if (!o->filename_format || !strlen(o->filename_format)) {
                sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
-               return NULL;
+               return buf;
        }
 
        for (f = &fpre_keywords[0]; f->keyword; f++)
@@ -1249,7 +1328,7 @@ static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
        return buf;
 }
 
-int parse_dryrun(void)
+bool parse_dryrun(void)
 {
        return dump_cmdline || parse_only;
 }
@@ -1385,6 +1464,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
        td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
 
        td->ts.clat_percentiles = o->clat_percentiles;
+       td->ts.lat_percentiles = o->lat_percentiles;
        td->ts.percentile_precision = o->percentile_precision;
        memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
 
@@ -1393,6 +1473,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                td->ts.slat_stat[i].min_val = ULONG_MAX;
                td->ts.lat_stat[i].min_val = ULONG_MAX;
                td->ts.bw_stat[i].min_val = ULONG_MAX;
+               td->ts.iops_stat[i].min_val = ULONG_MAX;
        }
        td->ddir_seq_nr = o->ddir_seq_nr;
 
@@ -1409,14 +1490,14 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
        prev_group_jobs++;
 
        if (setup_random_seeds(td)) {
-               td_verror(td, errno, "init_random_state");
+               td_verror(td, errno, "setup_random_seeds");
                goto err;
        }
 
        if (setup_rate(td))
                goto err;
 
-       if (o->lat_log_file) {
+       if (o->write_lat_log) {
                struct log_params p = {
                        .td = td,
                        .avg_msec = o->log_avg_msec,
@@ -1427,6 +1508,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                        .log_gz = o->log_gz,
                        .log_gz_store = o->log_gz_store,
                };
+               const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
                const char *suf;
 
                if (p.log_gz_store)
@@ -1434,20 +1516,20 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                else
                        suf = "log";
 
-               gen_log_name(logname, sizeof(logname), "lat", o->lat_log_file,
+               gen_log_name(logname, sizeof(logname), "lat", pre,
                                td->thread_number, suf, o->per_job_logs);
                setup_log(&td->lat_log, &p, logname);
 
-               gen_log_name(logname, sizeof(logname), "slat", o->lat_log_file,
+               gen_log_name(logname, sizeof(logname), "slat", pre,
                                td->thread_number, suf, o->per_job_logs);
                setup_log(&td->slat_log, &p, logname);
 
-               gen_log_name(logname, sizeof(logname), "clat", o->lat_log_file,
+               gen_log_name(logname, sizeof(logname), "clat", pre,
                                td->thread_number, suf, o->per_job_logs);
                setup_log(&td->clat_log, &p, logname);
        }
 
-       if (o->hist_log_file) {
+       if (o->write_hist_log) {
                struct log_params p = {
                        .td = td,
                        .avg_msec = o->log_avg_msec,
@@ -1458,19 +1540,27 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                        .log_gz = o->log_gz,
                        .log_gz_store = o->log_gz_store,
                };
+               const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
                const char *suf;
 
+#ifndef CONFIG_ZLIB
+               if (td->client_type) {
+                       log_err("fio: --write_hist_log requires zlib in client/server mode\n");
+                       goto err;
+               }
+#endif
+
                if (p.log_gz_store)
                        suf = "log.fz";
                else
                        suf = "log";
 
-               gen_log_name(logname, sizeof(logname), "clat_hist", o->hist_log_file,
+               gen_log_name(logname, sizeof(logname), "clat_hist", pre,
                                td->thread_number, suf, o->per_job_logs);
                setup_log(&td->clat_hist_log, &p, logname);
        }
 
-       if (o->bw_log_file) {
+       if (o->write_bw_log) {
                struct log_params p = {
                        .td = td,
                        .avg_msec = o->log_avg_msec,
@@ -1481,6 +1571,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                        .log_gz = o->log_gz,
                        .log_gz_store = o->log_gz_store,
                };
+               const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
                const char *suf;
 
                if (fio_option_is_set(o, bw_avg_time))
@@ -1496,11 +1587,11 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                else
                        suf = "log";
 
-               gen_log_name(logname, sizeof(logname), "bw", o->bw_log_file,
+               gen_log_name(logname, sizeof(logname), "bw", pre,
                                td->thread_number, suf, o->per_job_logs);
                setup_log(&td->bw_log, &p, logname);
        }
-       if (o->iops_log_file) {
+       if (o->write_iops_log) {
                struct log_params p = {
                        .td = td,
                        .avg_msec = o->log_avg_msec,
@@ -1511,6 +1602,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                        .log_gz = o->log_gz,
                        .log_gz_store = o->log_gz_store,
                };
+               const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
                const char *suf;
 
                if (fio_option_is_set(o, iops_avg_time))
@@ -1526,7 +1618,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                else
                        suf = "log";
 
-               gen_log_name(logname, sizeof(logname), "iops", o->iops_log_file,
+               gen_log_name(logname, sizeof(logname), "iops", pre,
                                td->thread_number, suf, o->per_job_logs);
                setup_log(&td->iops_log, &p, logname);
        }
@@ -1542,15 +1634,16 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                        if (!td_ioengine_flagged(td, FIO_NOIO)) {
                                char *c1, *c2, *c3, *c4;
                                char *c5 = NULL, *c6 = NULL;
+                               int i2p = is_power_of_2(o->kb_base);
 
-                               c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
-                               c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
-                               c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
-                               c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
+                               c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
+                               c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
+                               c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
+                               c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
 
                                if (!o->bs_is_seq_rand) {
-                                       c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
-                                       c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
+                                       c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
+                                       c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
                                }
 
                                log_info("%s: (g=%d): rw=%s, ", td->o.name,
@@ -1558,10 +1651,10 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                                                        ddir_str(o->td_ddir));
 
                                if (o->bs_is_seq_rand)
-                                       log_info("bs(seq/rand)=%s-%s/%s-%s, ",
+                                       log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
                                                        c1, c2, c3, c4);
                                else
-                                       log_info("bs=%s-%s/%s-%s/%s-%s, ",
+                                       log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
                                                        c1, c2, c3, c4, c5, c6);
 
                                log_info("ioengine=%s, iodepth=%u\n",
@@ -1578,45 +1671,8 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
                        log_info("...\n");
        }
 
-       if (o->ss_dur) {
-               steadystate = true;
-               o->ss_dur /= 1000000L;
-
-               /* put all steady state info in one place */
-               td->ss.dur = o->ss_dur;
-               td->ss.limit = o->ss_limit.u.f;
-               td->ss.ramp_time = o->ss_ramp_time;
-               td->ss.pct = o->ss_pct;
-
-               if (steadystate_check_slope(o))
-                       td->ss.check_slope = true;
-               else
-                       td->ss.check_slope = false;
-
-               if (o->ss == FIO_STEADYSTATE_IOPS || o->ss == FIO_STEADYSTATE_IOPS_SLOPE)
-                       td->ss.check_iops = true;
-               else
-                       td->ss.check_iops = false;
-
-               td->ss.bw_data = NULL;
-               td->ss.iops_data = NULL;
-               td->ss.ramp_time_over = (td->ss.ramp_time == 0);
-               td->ss.attained = 0;
-               td->ss.last_in_group = 0;
-               td->ss.head = 0;
-               td->ss.tail = 0;
-               td->ss.sum_x = o->ss_dur * (o->ss_dur - 1) / 2;
-               td->ss.sum_x_sq = (o->ss_dur - 1) * (o->ss_dur) * (2*o->ss_dur - 1) / 6;
-               td->ss.prev_bytes = 0;
-               td->ss.prev_iops = 0;
-               td->ss.sum_y = 0;
-               td->ss.oldest_y = 0;
-               td->ss.criterion = 0.0;
-               td->ss.slope = 0.0;
-               td->ss.deviation = 0.0;
-               td->ts.ss = &td->ss;
-       } else
-               td->ts.ss = NULL;
+       if (td_steadystate_init(td))
+               goto err;
 
        /*
         * recurse add identical jobs, clear numjobs and stonewall options
@@ -1624,7 +1680,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
         */
        numjobs = o->numjobs;
        while (--numjobs) {
-               struct thread_data *td_new = get_new_job(0, td, 1, jobname);
+               struct thread_data *td_new = get_new_job(false, td, true, jobname);
 
                if (!td_new)
                        goto err;
@@ -1685,11 +1741,11 @@ void add_job_opts(const char **o, int client_type)
                        sprintf(jobname, "%s", o[i] + 5);
                }
                if (in_global && !td_parent)
-                       td_parent = get_new_job(1, &def_thread, 0, jobname);
+                       td_parent = get_new_job(true, &def_thread, false, jobname);
                else if (!in_global && !td) {
                        if (!td_parent)
                                td_parent = &def_thread;
-                       td = get_new_job(0, td_parent, 0, jobname);
+                       td = get_new_job(false, td_parent, false, jobname);
                }
                if (in_global)
                        fio_options_parse(td_parent, (char **) &o[i], 1);
@@ -1737,11 +1793,11 @@ static int is_empty_or_comment(char *line)
 /*
  * This is our [ini] type file parser.
  */
-int __parse_jobs_ini(struct thread_data *td,
+static int __parse_jobs_ini(struct thread_data *td,
                char *file, int is_buf, int stonewall_flag, int type,
                int nested, char *name, char ***popts, int *aopts, int *nopts)
 {
-       unsigned int global = 0;
+       bool global = false;
        char *string;
        FILE *f;
        char *p;
@@ -1850,7 +1906,7 @@ int __parse_jobs_ini(struct thread_data *td,
                                first_sect = 0;
                        }
 
-                       td = get_new_job(global, &def_thread, 0, name);
+                       td = get_new_job(global, &def_thread, false, name);
                        if (!td) {
                                ret = 1;
                                break;
@@ -2054,6 +2110,11 @@ static void show_debug_categories(void)
 #endif
 }
 
+/*
+ * Following options aren't printed by usage().
+ * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
+ * --latency-log - Deprecated option.
+ */
 static void usage(const char *name)
 {
        printf("%s\n", fio_version_string);
@@ -2062,15 +2123,15 @@ static void usage(const char *name)
        show_debug_categories();
        printf("  --parse-only\t\tParse options only, don't start any IO\n");
        printf("  --output\t\tWrite output to file\n");
-       printf("  --runtime\t\tRuntime in seconds\n");
-       printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
+       printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
        printf("  --minimal\t\tMinimal (terse) output\n");
-       printf("  --output-format=x\tOutput format (terse,json,json+,normal)\n");
-       printf("  --terse-version=x\tSet terse version output format to 'x'\n");
+       printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
+       printf("  --terse-version=type\tSet terse version output format"
+               " (default 3, or 2 or 4)\n");
        printf("  --version\t\tPrint version info and exit\n");
        printf("  --help\t\tPrint this page\n");
        printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
-       printf("  --crctest\t\tTest speed of checksum functions\n");
+       printf("  --crctest=[type]\tTest speed of checksum functions\n");
        printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
                " them\n");
        printf("  --enghelp=engine\tPrint ioengine help, or list"
@@ -2086,14 +2147,15 @@ static void usage(const char *name)
        printf(" 't' period passed\n");
        printf("  --readonly\t\tTurn on safety read-only checks, preventing"
                " writes\n");
-       printf("  --section=name\tOnly run specified section in job file\n");
+       printf("  --section=name\tOnly run specified section in job file,"
+               " multiple sections can be specified\n");
        printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
-               " (def 1024)\n");
+               " (def 16384)\n");
        printf("  --warnings-fatal\tFio parser warnings are fatal\n");
        printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
        printf("  --server=args\t\tStart a backend fio server\n");
        printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
-       printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
+       printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
        printf("  --remote-config=file\tTell fio server to load this local job file\n");
        printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
                "\t\t\t(option=system,percpu) or run unit work\n"
@@ -2102,13 +2164,11 @@ static void usage(const char *name)
        printf("  --inflate-log=log\tInflate and output compressed log\n");
 #endif
        printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
-       printf("  --trigger-timeout=t\tExecute trigger af this time\n");
+       printf("  --trigger-timeout=t\tExecute trigger at this time\n");
        printf("  --trigger=cmd\t\tSet this command as local trigger\n");
        printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
        printf("  --aux-path=path\tUse this path for fio state generated files\n");
-       printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
-       printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
-       printf("\n                   Jens Axboe <axboe@fb.com>\n");
+       printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
 }
 
 #ifdef FIO_INC_DEBUG
@@ -2373,13 +2433,8 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                switch (c) {
                case 'a':
                        smalloc_pool_size = atoi(optarg);
-                       break;
-               case 't':
-                       if (check_str_time(optarg, &def_timeout, 1)) {
-                               log_err("fio: failed parsing time %s\n", optarg);
-                               do_exit++;
-                               exit_val = 1;
-                       }
+                       smalloc_pool_size <<= 10;
+                       sinit();
                        break;
                case 'l':
                        log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
@@ -2389,17 +2444,22 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                case 'b':
                        write_bw_log = 1;
                        break;
-               case 'o':
+               case 'o': {
+                       FILE *tmp;
+
                        if (f_out && f_out != stdout)
                                fclose(f_out);
 
-                       f_out = fopen(optarg, "w+");
-                       if (!f_out) {
-                               perror("fopen output");
-                               exit(1);
+                       tmp = fopen(optarg, "w+");
+                       if (!tmp) {
+                               log_err("fio: output file open error: %s\n", strerror(errno));
+                               exit_val = 1;
+                               do_exit++;
+                               break;
                        }
-                       f_err = f_out;
+                       f_err = f_out = tmp;
                        break;
+                       }
                case 'm':
                        output_format = FIO_OUTPUT_TERSE;
                        break;
@@ -2415,35 +2475,35 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                        output_format |= FIO_OUTPUT_TERSE;
                        break;
                case 'h':
-                       did_arg = 1;
+                       did_arg = true;
                        if (!cur_client) {
                                usage(argv[0]);
                                do_exit++;
                        }
                        break;
                case 'c':
-                       did_arg = 1;
+                       did_arg = true;
                        if (!cur_client) {
                                fio_show_option_help(optarg);
                                do_exit++;
                        }
                        break;
                case 'i':
-                       did_arg = 1;
+                       did_arg = true;
                        if (!cur_client) {
                                fio_show_ioengine_help(optarg);
                                do_exit++;
                        }
                        break;
                case 's':
-                       did_arg = 1;
+                       did_arg = true;
                        dump_cmdline = 1;
                        break;
                case 'r':
                        read_only = 1;
                        break;
                case 'v':
-                       did_arg = 1;
+                       did_arg = true;
                        if (!cur_client) {
                                log_info("%s\n", fio_version_string);
                                do_exit++;
@@ -2451,8 +2511,7 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                        break;
                case 'V':
                        terse_version = atoi(optarg);
-                       if (!(terse_version == 2 || terse_version == 3 ||
-                            terse_version == 4)) {
+                       if (!(terse_version >= 2 && terse_version <= 5)) {
                                log_err("fio: bad terse version format\n");
                                exit_val = 1;
                                do_exit++;
@@ -2471,8 +2530,31 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                                log_err("fio: failed parsing eta time %s\n", optarg);
                                exit_val = 1;
                                do_exit++;
+                               break;
                        }
                        eta_new_line = t / 1000;
+                       if (!eta_new_line) {
+                               log_err("fio: eta new line time too short\n");
+                               exit_val = 1;
+                               do_exit++;
+                       }
+                       break;
+                       }
+               case 'O': {
+                       long long t = 0;
+
+                       if (check_str_time(optarg, &t, 1)) {
+                               log_err("fio: failed parsing eta interval %s\n", optarg);
+                               exit_val = 1;
+                               do_exit++;
+                               break;
+                       }
+                       eta_interval_msec = t / 1000;
+                       if (eta_interval_msec < DISK_UTIL_MSEC) {
+                               log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
+                               exit_val = 1;
+                               do_exit++;
+                       }
                        break;
                        }
                case 'd':
@@ -2480,7 +2562,7 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                                do_exit++;
                        break;
                case 'P':
-                       did_arg = 1;
+                       did_arg = true;
                        parse_only = 1;
                        break;
                case 'x': {
@@ -2502,12 +2584,12 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
 #ifdef CONFIG_ZLIB
                case 'X':
                        exit_val = iolog_file_inflate(optarg);
-                       did_arg++;
+                       did_arg = true;
                        do_exit++;
                        break;
 #endif
                case 'p':
-                       did_arg = 1;
+                       did_arg = true;
                        if (exec_profile)
                                free(exec_profile);
                        exec_profile = strdup(optarg);
@@ -2521,7 +2603,7 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                                if (ret)
                                        goto out_free;
                                td = NULL;
-                               did_arg = 1;
+                               did_arg = true;
                        }
                        if (!td) {
                                int is_section = !strncmp(opt, "name", 4);
@@ -2533,7 +2615,7 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                                if (is_section && skip_this_section(val))
                                        continue;
 
-                               td = get_new_job(global, &def_thread, 1, NULL);
+                               td = get_new_job(global, &def_thread, true, NULL);
                                if (!td || ioengine_load(td)) {
                                        if (td) {
                                                put_job(td);
@@ -2563,7 +2645,6 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                        }
 
                        if (!ret && !strcmp(opt, "ioengine")) {
-                               free_ioengine(td);
                                if (ioengine_load(td)) {
                                        put_job(td);
                                        td = NULL;
@@ -2597,7 +2678,7 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                        }
                        break;
                case 'S':
-                       did_arg = 1;
+                       did_arg = true;
 #ifndef CONFIG_NO_SHM
                        if (nr_clients) {
                                log_err("fio: can't be both client and server\n");
@@ -2623,14 +2704,14 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                case 'I':
                        if ((ret = fio_idle_prof_parse_opt(optarg))) {
                                /* exit on error and calibration only */
-                               did_arg = 1;
+                               did_arg = true;
                                do_exit++;
                                if (ret == -1)
                                        exit_val = 1;
                        }
                        break;
                case 'C':
-                       did_arg = 1;
+                       did_arg = true;
                        if (is_backend) {
                                log_err("fio: can't be both client and server\n");
                                do_exit++;
@@ -2687,22 +2768,27 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                        }
                        break;
                case 'R':
-                       did_arg = 1;
+                       did_arg = true;
                        if (fio_client_add_ini_file(cur_client, optarg, true)) {
                                do_exit++;
                                exit_val = 1;
                        }
                        break;
                case 'T':
-                       did_arg = 1;
+                       did_arg = true;
                        do_exit++;
                        exit_val = fio_monotonic_clocktest(1);
                        break;
                case 'G':
-                       did_arg = 1;
+                       did_arg = true;
                        do_exit++;
                        exit_val = fio_crctest(optarg);
                        break;
+               case 'M':
+                       did_arg = true;
+                       do_exit++;
+                       exit_val = fio_memcpy_test(optarg);
+                       break;
                case 'L': {
                        long long val;
 
@@ -2712,6 +2798,11 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                                exit_val = 1;
                                break;
                        }
+                       if (val < 1000) {
+                               log_err("fio: status interval too small\n");
+                               do_exit++;
+                               exit_val = 1;
+                       }
                        status_interval = val / 1000;
                        break;
                        }
@@ -2771,7 +2862,7 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
                if (!ret) {
                        ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
                        if (ret)
-                               did_arg = 1;
+                               exit(1);
                }
        }
 
@@ -2783,9 +2874,6 @@ int parse_cmd_line(int argc, char *argv[], int client_type)
        }
 
 out_free:
-       if (pid_file)
-               free(pid_file);
-
        return ini_idx;
 }
 
@@ -2854,14 +2942,9 @@ int parse_options(int argc, char *argv[])
                if (did_arg)
                        return 0;
 
-               log_err("No jobs(s) defined\n\n");
-
-               if (!did_arg) {
-                       usage(argv[0]);
-                       return 1;
-               }
-
-               return 0;
+               log_err("No job(s) defined\n\n");
+               usage(argv[0]);
+               return 1;
        }
 
        if (output_format & FIO_OUTPUT_NORMAL)