Name the various random offsets we use
[fio.git] / init.c
diff --git a/init.c b/init.c
index 1cee0964d094c87d9d0bc24ad56da511cfbdd77f..e90d7355e9ee5de62c53a3c5fcc191145697103a 100644 (file)
--- a/init.c
+++ b/init.c
@@ -9,7 +9,9 @@
 #include <string.h>
 #include <errno.h>
 #include <sys/ipc.h>
+#ifndef FIO_NO_HAVE_SHM_H
 #include <sys/shm.h>
+#endif
 #include <sys/types.h>
 #include <sys/stat.h>
 
@@ -317,6 +319,10 @@ static struct thread_data *get_new_job(int global, struct thread_data *parent,
        profile_add_hooks(td);
 
        td->thread_number = thread_number;
+
+       if (!parent || !parent->o.group_reporting)
+               stat_number++;
+
        return td;
 }
 
@@ -382,20 +388,6 @@ static int fixed_block_size(struct thread_options *o)
                o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 }
 
-static void init_rand_distribution(struct thread_data *td)
-{
-       unsigned int range_size;
-       unsigned long nranges;
-
-       if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
-               return;
-
-       range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
-
-       nranges = (td->o.size + range_size - 1) / range_size;
-       zipf_init(&td->zipf, nranges, td->o.zipf_theta);
-}
-
 /*
  * Lazy way of fixing up options that depend on each other. We could also
  * define option callback handlers, but this is easier.
@@ -606,7 +598,12 @@ static int fixup_options(struct thread_data *td)
                td->o.compress_percentage = 0;
        }
 
-       init_rand_distribution(td);
+       /*
+        * 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;
 
        return ret;
 }
@@ -663,44 +660,44 @@ static int exists_and_not_file(const char *filename)
 
 static void td_fill_rand_seeds_os(struct thread_data *td)
 {
-       os_random_seed(td->rand_seeds[0], &td->bsrange_state);
-       os_random_seed(td->rand_seeds[1], &td->verify_state);
-       os_random_seed(td->rand_seeds[2], &td->rwmix_state);
+       os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state);
+       os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state);
+       os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state);
 
        if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
-               os_random_seed(td->rand_seeds[3], &td->next_file_state);
+               os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state);
 
-       os_random_seed(td->rand_seeds[5], &td->file_size_state);
-       os_random_seed(td->rand_seeds[6], &td->trim_state);
+       os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state);
+       os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state);
 
        if (!td_random(td))
                return;
 
        if (td->o.rand_repeatable)
-               td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
+               td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 
-       os_random_seed(td->rand_seeds[4], &td->random_state);
+       os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state);
 }
 
 static void td_fill_rand_seeds_internal(struct thread_data *td)
 {
-       init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
-       init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
-       init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
+       init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
+       init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
+       init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 
        if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
-               init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
+               init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 
-       init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
-       init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
+       init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
+       init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 
        if (!td_random(td))
                return;
 
        if (td->o.rand_repeatable)
-               td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
+               td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 
-       init_rand_seed(&td->__random_state, td->rand_seeds[4]);
+       init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 }
 
 void td_fill_rand_seeds(struct thread_data *td)
@@ -710,7 +707,7 @@ void td_fill_rand_seeds(struct thread_data *td)
        else
                td_fill_rand_seeds_internal(td);
 
-       init_rand_seed(&td->buf_state, td->rand_seeds[7]);
+       init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 }
 
 
@@ -770,6 +767,24 @@ int ioengine_load(struct thread_data *td)
        return 0;
 }
 
+static void init_flags(struct thread_data *td)
+{
+       struct thread_options *o = &td->o;
+
+       if (o->verify_backlog)
+               td->flags |= TD_F_VER_BACKLOG;
+       if (o->trim_backlog)
+               td->flags |= TD_F_TRIM_BACKLOG;
+       if (o->read_iolog_file)
+               td->flags |= TD_F_READ_IOLOG;
+       if (o->refill_buffers)
+               td->flags |= TD_F_REFILL_BUFFERS;
+       if (o->scramble_buffers)
+               td->flags |= TD_F_SCRAMBLE_BUFFERS;
+       if (o->verify != VERIFY_NONE)
+               td->flags |= TD_F_VER_NONE;
+}
+
 /*
  * Adds a job to the list of things todo. Sanitizes the various options
  * to make sure we don't have conflicts, and initializes various
@@ -790,6 +805,8 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
        if (td == &def_thread)
                return 0;
 
+       init_flags(td);
+
        /*
         * if we are just dumping the output command line, don't add the job
         */