Fio 1.57
[fio.git] / init.c
diff --git a/init.c b/init.c
index 124bdbbbf2fa30beabcb62e69814f2b20f951791..85bd0f73d7bcc86da11ae049dec0698ca8742bac 100644 (file)
--- a/init.c
+++ b/init.c
 
 #include "lib/getopt.h"
 
-static char fio_version_string[] = "fio 1.50-rc1";
+static char fio_version_string[] = "fio 1.57";
 
 #define FIO_RANDSEED           (0xb1899bedUL)
 
 static char **ini_file;
-static int max_jobs = MAX_JOBS;
+static int max_jobs = FIO_MAX_JOBS;
 static int dump_cmdline;
 
 static struct thread_data def_thread;
@@ -39,8 +39,10 @@ int eta_print;
 unsigned long long mlock_size = 0;
 FILE *f_out = NULL;
 FILE *f_err = NULL;
-char *job_section = NULL;
+char **job_sections = NULL;
+int nr_job_sections = 0;
 char *exec_profile = NULL;
+int warnings_fatal = 0;
 
 int write_bw_log = 0;
 int read_only = 0;
@@ -54,86 +56,98 @@ unsigned long fio_debug = 0;
 unsigned int fio_debug_jobno = -1;
 unsigned int *fio_debug_jobp = NULL;
 
+static char cmd_optstr[256];
+
 /*
  * Command line options. These will contain the above, plus a few
  * extra that only pertain to fio itself and not jobs.
  */
 static struct option l_opts[FIO_NR_OPTIONS] = {
        {
-               .name           = "output",
+               .name           = (char *) "output",
                .has_arg        = required_argument,
                .val            = 'o',
        },
        {
-               .name           = "timeout",
+               .name           = (char *) "timeout",
                .has_arg        = required_argument,
                .val            = 't',
        },
        {
-               .name           = "latency-log",
+               .name           = (char *) "latency-log",
                .has_arg        = required_argument,
                .val            = 'l',
        },
        {
-               .name           = "bandwidth-log",
+               .name           = (char *) "bandwidth-log",
                .has_arg        = required_argument,
                .val            = 'b',
        },
        {
-               .name           = "minimal",
+               .name           = (char *) "minimal",
                .has_arg        = optional_argument,
                .val            = 'm',
        },
        {
-               .name           = "version",
+               .name           = (char *) "version",
                .has_arg        = no_argument,
                .val            = 'v',
        },
        {
-               .name           = "help",
+               .name           = (char *) "help",
                .has_arg        = no_argument,
                .val            = 'h',
        },
        {
-               .name           = "cmdhelp",
+               .name           = (char *) "cmdhelp",
                .has_arg        = optional_argument,
                .val            = 'c',
        },
        {
-               .name           = "showcmd",
+               .name           = (char *) "showcmd",
                .has_arg        = no_argument,
                .val            = 's',
        },
        {
-               .name           = "readonly",
+               .name           = (char *) "readonly",
                .has_arg        = no_argument,
                .val            = 'r',
        },
        {
-               .name           = "eta",
+               .name           = (char *) "eta",
                .has_arg        = required_argument,
                .val            = 'e',
        },
        {
-               .name           = "debug",
+               .name           = (char *) "debug",
                .has_arg        = required_argument,
                .val            = 'd',
        },
        {
-               .name           = "section",
+               .name           = (char *) "section",
                .has_arg        = required_argument,
                .val            = 'x',
        },
        {
-               .name           = "alloc-size",
+               .name           = (char *) "alloc-size",
                .has_arg        = required_argument,
                .val            = 'a',
        },
        {
-               .name           = "profile",
+               .name           = (char *) "profile",
                .has_arg        = required_argument,
                .val            = 'p',
        },
+       {
+               .name           = (char *) "warnings-fatal",
+               .has_arg        = no_argument,
+               .val            = 'w',
+       },
+       {
+               .name           = (char *) "max-jobs",
+               .has_arg        = required_argument,
+               .val            = 'j',
+       },
        {
                .name           = NULL,
        },
@@ -158,8 +172,11 @@ static struct thread_data *get_new_job(int global, struct thread_data *parent)
 
        if (global)
                return &def_thread;
-       if (thread_number >= max_jobs)
+       if (thread_number >= max_jobs) {
+               log_err("error: maximum number of jobs (%d) reached.\n",
+                               max_jobs);
                return NULL;
+       }
 
        td = &threads[thread_number++];
        *td = *parent;
@@ -179,7 +196,7 @@ static void put_job(struct thread_data *td)
 {
        if (td == &def_thread)
                return;
-       
+
        profile_td_exit(td);
 
        if (td->error)
@@ -237,6 +254,7 @@ static int fixed_block_size(struct thread_options *o)
 static int fixup_options(struct thread_data *td)
 {
        struct thread_options *o = &td->o;
+       int ret = 0;
 
 #ifndef FIO_HAVE_PSHARED_MUTEX
        if (!o->use_thread) {
@@ -244,6 +262,7 @@ static int fixup_options(struct thread_data *td)
                         " mutexes, forcing use of threads. Use the 'thread'"
                         " option to get rid of this warning.\n");
                o->use_thread = 1;
+               ret = warnings_fatal;
        }
 #endif
 
@@ -251,6 +270,7 @@ static int fixup_options(struct thread_data *td)
                log_err("fio: read iolog overrides write_iolog\n");
                free(o->write_iolog_file);
                o->write_iolog_file = NULL;
+               ret = warnings_fatal;
        }
 
        /*
@@ -289,6 +309,7 @@ static int fixup_options(struct thread_data *td)
            !o->norandommap) {
                log_err("fio: Any use of blockalign= turns off randommap\n");
                o->norandommap = 1;
+               ret = warnings_fatal;
        }
 
        if (!o->file_size_high)
@@ -299,6 +320,7 @@ static int fixup_options(struct thread_data *td)
                log_err("fio: norandommap given for variable block sizes, "
                        "verify disabled\n");
                o->verify = VERIFY_NONE;
+               ret = warnings_fatal;
        }
        if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
                log_err("fio: bs_unaligned may not work with raw io\n");
@@ -340,28 +362,32 @@ static int fixup_options(struct thread_data *td)
            ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
                o->rate_iops_min[1]))) {
                log_err("fio: rate and rate_iops are mutually exclusive\n");
-               return 1;
+               ret = 1;
        }
        if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
            (o->rate_iops[0] < o->rate_iops_min[0]) ||
            (o->rate_iops[1] < o->rate_iops_min[1])) {
                log_err("fio: minimum rate exceeds rate\n");
-               return 1;
+               ret = 1;
        }
 
        if (!o->timeout && o->time_based) {
                log_err("fio: time_based requires a runtime/timeout setting\n");
                o->time_based = 0;
+               ret = warnings_fatal;
        }
 
        if (o->fill_device && !o->size)
                o->size = -1ULL;
 
-       if (td_rw(td) && o->verify != VERIFY_NONE)
-               log_info("fio: mixed read/write workload with verify. May not "
-                "work as expected, unless you pre-populated the file\n");
-
        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 "
+                               "verification failures.\n");
+                       ret = warnings_fatal;
+               }
+
                o->refill_buffers = 1;
                if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
                    !o->verify_interval)
@@ -370,9 +396,11 @@ static int fixup_options(struct thread_data *td)
 
        if (o->pre_read) {
                o->invalidate_cache = 0;
-               if (td->io_ops->flags & FIO_PIPEIO)
+               if (td->io_ops->flags & FIO_PIPEIO) {
                        log_info("fio: cannot pre-read files with an IO engine"
                                 " that isn't seekable. Pre-read disabled.\n");
+                       ret = warnings_fatal;
+               }
        }
 
 #ifndef FIO_HAVE_FDATASYNC
@@ -383,10 +411,11 @@ static int fixup_options(struct thread_data *td)
                         " this warning\n");
                o->fsync_blocks = o->fdatasync_blocks;
                o->fdatasync_blocks = 0;
+               ret = warnings_fatal;
        }
 #endif
 
-       return 0;
+       return ret;
 }
 
 /*
@@ -439,7 +468,7 @@ static int exists_and_not_file(const char *filename)
        return 1;
 }
 
-void td_fill_rand_seeds(struct thread_data *td)
+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);
@@ -460,6 +489,35 @@ void td_fill_rand_seeds(struct thread_data *td)
        os_random_seed(td->rand_seeds[4], &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]);
+
+       if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
+               init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
+
+       init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
+       init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
+
+       if (!td_random(td))
+               return;
+
+       if (td->o.rand_repeatable)
+               td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
+
+       init_rand_seed(&td->__random_state, td->rand_seeds[4]);
+}
+
+void td_fill_rand_seeds(struct thread_data *td)
+{
+       if (td->o.use_os_rand)
+               td_fill_rand_seeds_os(td);
+       else
+               td_fill_rand_seeds_internal(td);
+}
+
 /*
  * Initialize the various random states we need (random io, block size ranges,
  * read/write mix, etc).
@@ -515,7 +573,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
        }
 
        if (profile_td_init(td))
-               return 1;
+               goto err;
 
        engine = get_engine_name(td->o.ioengine);
        td->io_ops = load_ioengine(td, engine);
@@ -695,12 +753,18 @@ void add_job_opts(const char **o)
 
 static int skip_this_section(const char *name)
 {
-       if (!job_section)
+       int i;
+
+       if (!nr_job_sections)
                return 0;
        if (!strncmp(name, "global", 6))
                return 0;
 
-       return strcmp(job_section, name);
+       for (i = 0; i < nr_job_sections; i++)
+               if (!strcmp(job_sections[i], name))
+                       return 0;
+
+       return 1;
 }
 
 static int is_empty_or_comment(char *line)
@@ -712,7 +776,7 @@ static int is_empty_or_comment(char *line)
                        return 1;
                if (line[i] == '#')
                        return 1;
-               if (!isspace(line[i]) && !iscntrl(line[i]))
+               if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
                        return 0;
        }
 
@@ -776,7 +840,7 @@ static int parse_jobs_ini(char *file, int stonewall_flag)
 
                if (is_empty_or_comment(p))
                        continue;
-               if (sscanf(p, "[%255s]", name) != 1) {
+               if (sscanf(p, "[%255[^\n]]", name) != 1) {
                        if (inside_skip)
                                continue;
                        log_err("fio: option <%s> outside of [] job section\n",
@@ -979,6 +1043,8 @@ static void usage(const char *name)
        printf("\t--section=name\tOnly run specified section in job file\n");
        printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
                " (def 1024)\n");
+       printf("\t--warnings-fatal Fio parser warnings are fatal\n");
+       printf("\t--max-jobs\tMaximum number of threads/processes to support\n");
        printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
        printf("\n                   Jens Axboe <jaxboe@fusionio.com>\n");
 }
@@ -1009,8 +1075,6 @@ static int set_debug(const char *string)
        int i;
 
        if (!strcmp(string, "?") || !strcmp(string, "help")) {
-               int i;
-
                log_info("fio: dumping debug options:");
                for (i = 0; debug_levels[i].name; i++) {
                        dl = &debug_levels[i];
@@ -1065,12 +1129,32 @@ static int set_debug(const char *string)
 }
 #endif
 
+static void fio_options_fill_optstring(void)
+{
+       char *ostr = cmd_optstr;
+       int i, c;
+
+       c = i = 0;
+       while (l_opts[i].name) {
+               ostr[c++] = l_opts[i].val;
+               if (l_opts[i].has_arg == required_argument)
+                       ostr[c++] = ':';
+               else if (l_opts[i].has_arg == optional_argument) {
+                       ostr[c++] = ':';
+                       ostr[c++] = ':';
+               }
+               i++;
+       }
+       ostr[c] = '\0';
+}
+
 static int parse_cmd_line(int argc, char *argv[])
 {
        struct thread_data *td = NULL;
        int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
+       char *ostr = cmd_optstr;
 
-       while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) {
+       while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
                switch (c) {
                case 'a':
                        smalloc_pool_size = atoi(optarg);
@@ -1107,7 +1191,7 @@ static int parse_cmd_line(int argc, char *argv[])
                        read_only = 1;
                        break;
                case 'v':
-                       printf("%s\n", fio_version_string);
+                       log_info("%s\n", fio_version_string);
                        exit(0);
                case 'e':
                        if (!strcmp("always", optarg))
@@ -1119,7 +1203,9 @@ static int parse_cmd_line(int argc, char *argv[])
                        if (set_debug(optarg))
                                do_exit++;
                        break;
-               case 'x':
+               case 'x': {
+                       size_t new_size;
+
                        if (!strcmp(optarg, "global")) {
                                log_err("fio: can't use global as only "
                                        "section\n");
@@ -1127,10 +1213,12 @@ static int parse_cmd_line(int argc, char *argv[])
                                exit_val = 1;
                                break;
                        }
-                       if (job_section)
-                               free(job_section);
-                       job_section = strdup(optarg);
+                       new_size = (nr_job_sections + 1) * sizeof(char *);
+                       job_sections = realloc(job_sections, new_size);
+                       job_sections[nr_job_sections] = strdup(optarg);
+                       nr_job_sections++;
                        break;
+                       }
                case 'p':
                        exec_profile = strdup(optarg);
                        break;
@@ -1140,10 +1228,8 @@ static int parse_cmd_line(int argc, char *argv[])
 
                        if (!strncmp(opt, "name", 4) && td) {
                                ret = add_job(td, td->o.name ?: "fio", 0);
-                               if (ret) {
-                                       put_job(td);
+                               if (ret)
                                        return 0;
-                               }
                                td = NULL;
                        }
                        if (!td) {
@@ -1164,6 +1250,17 @@ static int parse_cmd_line(int argc, char *argv[])
                        ret = fio_cmd_option_parse(td, opt, val);
                        break;
                }
+               case 'w':
+                       warnings_fatal = 1;
+                       break;
+               case 'j':
+                       max_jobs = atoi(optarg);
+                       if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
+                               log_err("fio: invalid max jobs: %d\n", max_jobs);
+                               do_exit++;
+                               exit_val = 1;
+                       }
+                       break;
                default:
                        do_exit++;
                        exit_val = 1;
@@ -1177,8 +1274,6 @@ static int parse_cmd_line(int argc, char *argv[])
        if (td) {
                if (!ret)
                        ret = add_job(td, td->o.name ?: "fio", 0);
-               if (ret)
-                       put_job(td);
        }
 
        while (optind < argc) {
@@ -1198,8 +1293,7 @@ int parse_options(int argc, char *argv[])
        f_out = stdout;
        f_err = stderr;
 
-       log_info("%s\n", fio_version_string);
-
+       fio_options_fill_optstring();
        fio_options_dup_and_init(l_opts);
 
        if (setup_thread_area())
@@ -1237,5 +1331,6 @@ int parse_options(int argc, char *argv[])
                fio_gtod_cpu = def_thread.o.gtod_cpu;
        }
 
+       log_info("%s\n", fio_version_string);
        return 0;
 }