Fio 1.26
[fio.git] / init.c
diff --git a/init.c b/init.c
index effe63c5663bc17bb5fc22e252cc7d32b6a6107b..71d792ffaf21ad57a4d3f11dfcb5df01c0365c6e 100644 (file)
--- a/init.c
+++ b/init.c
@@ -19,7 +19,7 @@
 #include "smalloc.h"
 #include "filehash.h"
 
-static char fio_version_string[] = "fio 1.20-rc3";
+static char fio_version_string[] = "fio 1.26";
 
 #define FIO_RANDSEED           (0xb1899bedUL)
 
@@ -27,7 +27,7 @@ static char **ini_file;
 static int max_jobs = MAX_JOBS;
 static int dump_cmdline;
 
-struct thread_data def_thread;
+static struct thread_data def_thread;
 struct thread_data *threads = NULL;
 
 int exitall_on_terminate = 0;
@@ -47,6 +47,8 @@ static int write_lat_log;
 static int prev_group_jobs;
 
 unsigned long fio_debug = 0;
+unsigned int fio_debug_jobno = -1;
+unsigned int *fio_debug_jobp = NULL;
 
 /*
  * Command line options. These will contain the above, plus a few
@@ -118,6 +120,11 @@ static struct option l_opts[FIO_NR_OPTIONS] = {
                .has_arg        = required_argument,
                .val            = 'x',
        },
+       {
+               .name           = "alloc-size",
+               .has_arg        = required_argument,
+               .val            = 'a',
+       },
        {
                .name           = NULL,
        },
@@ -199,6 +206,13 @@ static int setup_rate(struct thread_data *td)
        return 0;
 }
 
+static int fixed_block_size(struct thread_options *o)
+{
+       return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
+               o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
+               o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
+}
+
 /*
  * Lazy way of fixing up options that depend on each other. We could also
  * define option callback handlers, but this is easier.
@@ -207,15 +221,29 @@ static int fixup_options(struct thread_data *td)
 {
        struct thread_options *o = &td->o;
 
+#ifndef FIO_HAVE_PSHARED_MUTEX
+       if (!td->o.use_thread) {
+               log_info("fio: this platform does not support process shared"
+                        " mutexes, forcing use of threads. Use the 'thread'"
+                        " option to get rid of this warning.\n");
+               td->o.use_thread = 1;
+       }
+#endif
+
+#ifndef FIO_HAVE_CPU_AFFINITY
+       if (td->o.gtod_cpu) {
+               log_err("fio: platform must support CPU affinity for"
+                       "gettimeofday() offloading\n");
+               return 1;
+       }
+#endif
+
        if (read_only && td_write(td)) {
                log_err("fio: job <%s> has write bit set, but fio is in"
                        " read-only mode\n", td->o.name);
                return 1;
        }
 
-       if (o->rwmix[DDIR_READ] + o->rwmix[DDIR_WRITE] > 100)
-               o->rwmix[DDIR_WRITE] = 100 - o->rwmix[DDIR_READ];
-
        if (o->write_iolog_file && o->read_iolog_file) {
                log_err("fio: read iolog overrides write_iolog\n");
                free(o->write_iolog_file);
@@ -245,11 +273,28 @@ static int fixup_options(struct thread_data *td)
 
        o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 
+       /*
+        * For random IO, allow blockalign offset other than min_bs.
+        */
+       if (!o->ba[DDIR_READ] || !td_random(td))
+               o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
+       if (!o->ba[DDIR_WRITE] || !td_random(td))
+               o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
+
+       if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
+           o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
+           !td->o.norandommap) {
+               log_err("fio: Any use of blockalign= turns off randommap\n");
+               td->o.norandommap = 1;
+       }
+
        if (!o->file_size_high)
                o->file_size_high = o->file_size_low;
 
-       if (o->norandommap && o->verify != VERIFY_NONE) {
-               log_err("fio: norandommap given, verify disabled\n");
+       if (o->norandommap && o->verify != VERIFY_NONE
+           && !fixed_block_size(o))  {
+               log_err("fio: norandommap given for variable block sizes, "
+                       "verify disabled\n");
                o->verify = VERIFY_NONE;
        }
        if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
@@ -303,12 +348,15 @@ static int fixup_options(struct thread_data *td)
        }
 
        if (o->fill_device && !o->size)
-               o->size = ULONG_LONG_MAX;
+               o->size = -1ULL;
 
        if (td_rw(td) && 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 (td->o.verify != VERIFY_NONE)
+               td->o.refill_buffers = 1;
+
        return 0;
 }
 
@@ -360,13 +408,32 @@ static int exists_and_not_file(const char *filename)
        return 1;
 }
 
+void td_fill_rand_seeds(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);
+
+       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[5], &td->file_size_state);
+
+       if (!td_random(td))
+               return;
+
+       if (td->o.rand_repeatable)
+               td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
+
+       os_random_seed(td->rand_seeds[4], &td->random_state);
+}
+
 /*
  * 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;
 
        fd = open("/dev/urandom", O_RDONLY);
@@ -375,30 +442,15 @@ static int init_random_state(struct thread_data *td)
                return 1;
        }
 
-       if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
+       if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
+           (int) sizeof(td->rand_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->o.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->o.rand_repeatable)
-               seeds[4] = FIO_RANDSEED * td->thread_number;
-
-       os_random_seed(seeds[4], &td->random_state);
+       td_fill_rand_seeds(td);
        return 0;
 }
 
@@ -552,6 +604,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
                if (file_alloced) {
                        td_new->o.filename = NULL;
                        td_new->files_index = 0;
+                       td_new->files_size = 0;
                        td_new->files = NULL;
                }
 
@@ -574,7 +627,7 @@ static int skip_this_section(const char *name)
        if (!strncmp(name, "global", 6))
                return 0;
 
-       return strncmp(job_section, name, strlen(job_section));
+       return strcmp(job_section, name);
 }
 
 static int is_empty_or_comment(char *line)
@@ -607,6 +660,8 @@ static int parse_jobs_ini(char *file, int stonewall_flag)
        int first_sect = 1;
        int skip_fgets = 0;
        int inside_skip = 0;
+       char **opts;
+       int i, alloc_opts, num_opts;
 
        if (!strcmp(file, "-"))
                f = stdin;
@@ -626,6 +681,10 @@ static int parse_jobs_ini(char *file, int stonewall_flag)
        name = malloc(280);
        memset(name, 0, 280);
 
+       alloc_opts = 8;
+       opts = malloc(sizeof(char *) * alloc_opts);
+       num_opts = 0;
+
        stonewall = stonewall_flag;
        do {
                /*
@@ -684,6 +743,9 @@ static int parse_jobs_ini(char *file, int stonewall_flag)
                        stonewall = 0;
                }
 
+               num_opts = 0;
+               memset(opts, 0, alloc_opts * sizeof(char *));
+
                while ((p = fgets(string, 4096, f)) != NULL) {
                        if (is_empty_or_comment(p))
                                continue;
@@ -701,29 +763,42 @@ static int parse_jobs_ini(char *file, int stonewall_flag)
 
                        strip_blank_end(p);
 
-                       /*
-                        * Don't break here, continue parsing options so we
-                        * dump all the bad ones. Makes trial/error fixups
-                        * easier on the user.
-                        */
-                       ret |= fio_option_parse(td, p);
-                       if (!ret && dump_cmdline)
-                               log_info("--%s ", p);
+                       if (num_opts == alloc_opts) {
+                               alloc_opts <<= 1;
+                               opts = realloc(opts,
+                                               alloc_opts * sizeof(char *));
+                       }
+
+                       opts[num_opts] = strdup(p);
+                       num_opts++;
                }
 
-               if (!ret)
+               ret = fio_options_parse(td, opts, num_opts);
+               if (!ret) {
+                       if (dump_cmdline)
+                               for (i = 0; i < num_opts; i++)
+                                       log_info("--%s ", opts[i]);
+
                        ret = add_job(td, name, 0);
-               else {
+               else {
                        log_err("fio: job %s dropped\n", name);
                        put_job(td);
                }
+
+               for (i = 0; i < num_opts; i++)
+                       free(opts[i]);
+               num_opts = 0;
        } while (!ret);
 
        if (dump_cmdline)
                log_info("\n");
 
+       for (i = 0; i < num_opts; i++)
+               free(opts[i]);
+
        free(string);
        free(name);
+       free(opts);
        if (f != stdin)
                fclose(f);
        return ret;
@@ -752,8 +827,12 @@ static void free_shm(void)
        struct shmid_ds sbuf;
 
        if (threads) {
-               shmdt((void *) threads);
+               void *tp = threads;
+
                threads = NULL;
+               file_hash_exit();
+               fio_debug_jobp = NULL;
+               shmdt(tp);
                shmctl(shm_id, IPC_RMID, &sbuf);
        }
 
@@ -778,6 +857,7 @@ static int setup_thread_area(void)
                size_t size = max_jobs * sizeof(struct thread_data);
 
                size += file_hash_size;
+               size += sizeof(unsigned int);
 
                shm_id = shmget(0, size, IPC_CREAT | 0600);
                if (shm_id != -1)
@@ -801,6 +881,8 @@ static int setup_thread_area(void)
 
        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 = -1;
        file_hash_init(hash);
        atexit(free_shm);
        return 0;
@@ -826,6 +908,8 @@ static void usage(const char *name)
        printf("\t--readonly\tTurn on safety read-only checks, preventing"
                " writes\n");
        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");
 }
 
 #ifdef FIO_INC_DEBUG
@@ -839,7 +923,9 @@ struct debug_level debug_levels[] = {
        { .name = "random",     .shift = FD_RANDOM },
        { .name = "parse",      .shift = FD_PARSE },
        { .name = "diskutil",   .shift = FD_DISKUTIL },
-       { },
+       { .name = "job",        .shift = FD_JOB },
+       { .name = "mutex",      .shift = FD_MUTEX },
+       { .name = NULL, },
 };
 
 static int set_debug(const char *string)
@@ -859,22 +945,38 @@ static int set_debug(const char *string)
                }
                log_info("all\n");
                return 1;
-       } else if (!strcmp(string, "all")) {
-               fio_debug = ~0UL;
-               return 0;
        }
 
        while ((opt = strsep(&p, ",")) != NULL) {
                int found = 0;
 
+               if (!strncmp(opt, "all", 3)) {
+                       log_info("fio: set all debug options\n");
+                       fio_debug = ~0UL;
+                       continue;
+               }
+
                for (i = 0; debug_levels[i].name; i++) {
                        dl = &debug_levels[i];
-                       if (!strncmp(opt, dl->name, strlen(opt))) {
+                       found = !strncmp(opt, dl->name, strlen(dl->name));
+                       if (!found)
+                               continue;
+
+                       if (dl->shift == FD_JOB) {
+                               opt = strchr(opt, ':');
+                               if (!opt) {
+                                       log_err("fio: missing job number\n");
+                                       break;
+                               }
+                               opt++;
+                               fio_debug_jobno = atoi(opt);
+                               log_info("fio: set debug jobno %d\n",
+                                                       fio_debug_jobno);
+                       } else {
                                log_info("fio: set debug option %s\n", opt);
-                               found = 1;
                                fio_debug |= (1UL << dl->shift);
-                               break;
                        }
+                       break;
                }
 
                if (!found)
@@ -883,7 +985,7 @@ static int set_debug(const char *string)
        return 0;
 }
 #else
-static void set_debug(const char *string)
+static int set_debug(const char *string)
 {
        log_err("fio: debug tracing not included in build\n");
        return 1;
@@ -897,6 +999,9 @@ static int parse_cmd_line(int argc, char *argv[])
 
        while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) {
                switch (c) {
+               case 'a':
+                       smalloc_pool_size = atoi(optarg);
+                       break;
                case 't':
                        def_timeout = atoi(optarg);
                        break;
@@ -1046,5 +1151,11 @@ int parse_options(int argc, char *argv[])
                return 1;
        }
 
+       if (def_thread.o.gtod_offload) {
+               fio_gtod_init();
+               fio_gtod_offload = 1;
+               fio_gtod_cpu = def_thread.o.gtod_cpu;
+       }
+
        return 0;
 }