fio: provide an option for a startdelay range
[fio.git] / options.c
index d2493e4566d963c60598ba3865bd0d40dd68534b..5b97ec413aae0ba43d8f911ccfda8dc24397553f 100644 (file)
--- a/options.c
+++ b/options.c
@@ -821,6 +821,18 @@ static int str_directory_cb(void *data, const char fio_unused *str)
        return 0;
 }
 
+static int str_lockfile_cb(void *data, const char fio_unused *str)
+{
+       struct thread_data *td = data;
+
+       if (td->files_index) {
+               log_err("fio: lockfile= option must precede filename=\n");
+               return 1;
+       }
+
+       return 0;
+}
+
 static int str_opendir_cb(void *data, const char fio_unused *str)
 {
        struct thread_data *td = data;
@@ -834,11 +846,12 @@ static int str_opendir_cb(void *data, const char fio_unused *str)
        return add_dir_files(td, td->o.opendir);
 }
 
-static int str_verify_pattern_cb(void *data, const char *input)
+static int pattern_cb(char *pattern, unsigned int max_size,
+                     const char *input, unsigned int *pattern_bytes)
 {
-       struct thread_data *td = data;
        long off;
-       int i = 0, j = 0, len, k, base = 10, pattern_length;
+       int i = 0, j = 0, len, k, base = 10;
+       uint32_t pattern_length;
        char *loc1, *loc2;
 
        loc1 = strstr(input, "0x");
@@ -848,7 +861,7 @@ static int str_verify_pattern_cb(void *data, const char *input)
        off = strtol(input, NULL, base);
        if (off != LONG_MAX || errno != ERANGE) {
                while (off) {
-                       td->o.verify_pattern[i] = off & 0xff;
+                       pattern[i] = off & 0xff;
                        off >>= 8;
                        i++;
                }
@@ -862,13 +875,13 @@ static int str_verify_pattern_cb(void *data, const char *input)
                                j = loc2 - input + 2;
                } else
                        return 1;
-               if (len - j < MAX_PATTERN_SIZE * 2) {
+               if (len - j < max_size * 2) {
                        while (k >= j) {
                                off = converthexchartoint(input[k--]);
                                if (k >= j)
                                        off += (converthexchartoint(input[k--])
                                                * 16);
-                               td->o.verify_pattern[i++] = (char) off;
+                               pattern[i++] = (char) off;
                        }
                }
        }
@@ -878,19 +891,19 @@ static int str_verify_pattern_cb(void *data, const char *input)
         * the number of memcpy's we have to do when verifying the IO.
         */
        pattern_length = i;
-       while (i > 1 && i * 2 <= MAX_PATTERN_SIZE) {
-               memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], i);
+       while (i > 1 && i * 2 <= max_size) {
+               memcpy(&pattern[i], &pattern[0], i);
                i *= 2;
        }
 
        /*
         * Fill remainder, if the pattern multiple ends up not being
-        * MAX_PATTERN_SIZE.
+        * max_size.
         */
-       while (i > 1 && i < MAX_PATTERN_SIZE) {
-               unsigned int b = min(pattern_length, MAX_PATTERN_SIZE - i);
+       while (i > 1 && i < max_size) {
+               unsigned int b = min(pattern_length, max_size - i);
 
-               memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], b);
+               memcpy(&pattern[i], &pattern[0], b);
                i += b;
        }
 
@@ -899,19 +912,45 @@ static int str_verify_pattern_cb(void *data, const char *input)
                 * The code in verify_io_u_pattern assumes a single byte pattern
                 * fills the whole verify pattern buffer.
                 */
-               memset(td->o.verify_pattern, td->o.verify_pattern[0],
-                      MAX_PATTERN_SIZE);
+               memset(pattern, pattern[0], max_size);
        }
 
-       td->o.verify_pattern_bytes = i;
+       *pattern_bytes = i;
+       return 0;
+}
+
+static int str_buffer_pattern_cb(void *data, const char *input)
+{
+       struct thread_data *td = data;
+       int ret;
+
+       ret = pattern_cb(td->o.buffer_pattern, MAX_PATTERN_SIZE, input,
+                               &td->o.buffer_pattern_bytes);
+
+       if (!ret) {
+               td->o.refill_buffers = 0;
+               td->o.scramble_buffers = 0;
+               td->o.zero_buffers = 0;
+       }
+
+       return ret;
+}
+
+static int str_verify_pattern_cb(void *data, const char *input)
+{
+       struct thread_data *td = data;
+       int ret;
+
+       ret = pattern_cb(td->o.verify_pattern, MAX_PATTERN_SIZE, input,
+                               &td->o.verify_pattern_bytes);
 
        /*
         * VERIFY_META could already be set
         */
-       if (td->o.verify == VERIFY_NONE)
+       if (!ret && td->o.verify == VERIFY_NONE)
                td->o.verify = VERIFY_PATTERN;
 
-       return 0;
+       return ret;
 }
 
 static int str_gtod_reduce_cb(void *data, int *il)
@@ -1042,6 +1081,10 @@ struct opt_group *opt_group_from_mask(unsigned int *mask)
 }
 
 static struct opt_group fio_opt_cat_groups[] = {
+       {
+               .name   = "Latency profiling",
+               .mask   = FIO_OPT_G_LATPROF,
+       },
        {
                .name   = "Rate",
                .mask   = FIO_OPT_G_RATE,
@@ -1196,9 +1239,11 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .type   = FIO_OPT_STR,
                .off1   = td_var_offset(file_lock_mode),
                .help   = "Lock file when doing IO to it",
+               .prio   = 1,
                .parent = "filename",
                .hide   = 0,
                .def    = "none",
+               .cb     = str_lockfile_cb,
                .category = FIO_OPT_C_FILE,
                .group  = FIO_OPT_G_FILENAME,
                .posval = {
@@ -1342,6 +1387,11 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                          { .ival = "windowsaio",
                            .help = "Windows native asynchronous IO"
                          },
+#endif
+#ifdef CONFIG_RBD
+                         { .ival = "rbd",
+                           .help = "Rados Block Device asynchronous IO"
+                         },
 #endif
                          { .ival = "mmap",
                            .help = "Memory mapped IO"
@@ -1622,6 +1672,16 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .category = FIO_OPT_C_IO,
                .group  = FIO_OPT_G_RANDOM,
        },
+       {
+               .name   = "randseed",
+               .lname  = "The random generator seed",
+               .type   = FIO_OPT_STR_VAL,
+               .off1   = td_var_offset(rand_seed),
+               .help   = "Set the random generator seed value",
+               .parent = "rw",
+               .category = FIO_OPT_C_IO,
+               .group  = FIO_OPT_G_RANDOM,
+       },
        {
                .name   = "use_os_rand",
                .lname  = "Use OS random",
@@ -1723,6 +1783,13 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .category = FIO_OPT_C_IO,
                .group  = FIO_OPT_G_RANDOM,
        },
+       {
+               .name   = "allrandrepeat",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(allrand_repeatable),
+               .help   = "Use repeatable random numbers for everything",
+               .def    = "0",
+       },
        {
                .name   = "nrfiles",
                .lname  = "Number of files",
@@ -1859,18 +1926,18 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                          { .ival = "wait_before",
                            .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
                            .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
-                           .or   = 1,
+                           .orval  = 1,
                          },
                          { .ival = "write",
                            .oval = SYNC_FILE_RANGE_WRITE,
                            .help = "SYNC_FILE_RANGE_WRITE",
-                           .or   = 1,
+                           .orval  = 1,
                          },
                          {
                            .ival = "wait_after",
                            .oval = SYNC_FILE_RANGE_WAIT_AFTER,
                            .help = "SYNC_FILE_RANGE_WAIT_AFTER",
-                           .or   = 1,
+                           .orval  = 1,
                          },
                },
                .type   = FIO_OPT_STR_MULTI,
@@ -1951,6 +2018,7 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .lname  = "Start delay",
                .type   = FIO_OPT_STR_VAL_TIME,
                .off1   = td_var_offset(start_delay),
+               .off2   = td_var_offset(start_delay_high),
                .help   = "Only start job when this period has passed",
                .def    = "0",
                .category = FIO_OPT_C_GENERAL,
@@ -1976,6 +2044,15 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .category = FIO_OPT_C_GENERAL,
                .group  = FIO_OPT_G_RUNTIME,
        },
+       {
+               .name   = "verify_only",
+               .lname  = "Verify only",
+               .type   = FIO_OPT_STR_SET,
+               .off1   = td_var_offset(verify_only),
+               .help   = "Verifies previously written data is still valid",
+               .category = FIO_OPT_C_GENERAL,
+               .group  = FIO_OPT_G_RUNTIME,
+       },
        {
                .name   = "ramp_time",
                .lname  = "Ramp time",
@@ -2623,7 +2700,38 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .off1   = td_var_offset(max_latency),
                .help   = "Maximum tolerated IO latency (usec)",
                .category = FIO_OPT_C_IO,
-               .group = FIO_OPT_G_RATE,
+               .group = FIO_OPT_G_LATPROF,
+       },
+       {
+               .name   = "latency_target",
+               .lname  = "Latency Target (usec)",
+               .type   = FIO_OPT_STR_VAL_TIME,
+               .off1   = td_var_offset(latency_target),
+               .help   = "Ramp to max queue depth supporting this latency",
+               .category = FIO_OPT_C_IO,
+               .group  = FIO_OPT_G_LATPROF,
+       },
+       {
+               .name   = "latency_window",
+               .lname  = "Latency Window (usec)",
+               .type   = FIO_OPT_STR_VAL_TIME,
+               .off1   = td_var_offset(latency_window),
+               .help   = "Time to sustain latency_target",
+               .category = FIO_OPT_C_IO,
+               .group  = FIO_OPT_G_LATPROF,
+       },
+       {
+               .name   = "latency_percentile",
+               .lname  = "Latency Percentile",
+               .type   = FIO_OPT_FLOAT_LIST,
+               .off1   = td_var_offset(latency_percentile),
+               .help   = "Percentile of IOs must be below latency_target",
+               .def    = "100",
+               .maxlen = 1,
+               .minfp  = 0.0,
+               .maxfp  = 100.0,
+               .category = FIO_OPT_C_IO,
+               .group  = FIO_OPT_G_LATPROF,
        },
        {
                .name   = "invalidate",
@@ -2901,6 +3009,15 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .category = FIO_OPT_C_IO,
                .group  = FIO_OPT_G_IO_BUF,
        },
+       {
+               .name   = "buffer_pattern",
+               .lname  = "Buffer pattern",
+               .type   = FIO_OPT_STR,
+               .cb     = str_buffer_pattern_cb,
+               .help   = "Fill pattern for IO buffers",
+               .category = FIO_OPT_C_IO,
+               .group  = FIO_OPT_G_IO_BUF,
+       },
        {
                .name   = "buffer_compress_percentage",
                .lname  = "Buffer compression percentage",
@@ -3636,7 +3753,7 @@ void options_mem_dupe(void *data, struct fio_option *options)
                if (o->type != FIO_OPT_STR_STORE)
                        continue;
 
-               ptr = td_var(data, o->off1);
+               ptr = td_var(data, o, o->off1);
                if (*ptr)
                        *ptr = strdup(*ptr);
        }
@@ -3682,7 +3799,13 @@ int add_option(struct fio_option *o)
                __o++;
        }
 
+       if (opt_index + 1 == FIO_MAX_OPTS) {
+               log_err("fio: FIO_MAX_OPTS is too small\n");
+               return 1;
+       }
+
        memcpy(&fio_options[opt_index], o, sizeof(*o));
+       fio_options[opt_index + 1].name = NULL;
        return 0;
 }