Add LFSR generator

[fio.git] / options.c

diff --git a/options.c b/options.c
index ae8598825e048a783da985bf9c6d89b8fb2530a2..d46bcbbcf6c9cab8fc1c41e8800bc5071429ccd9 100644 (file)
--- a/options.c
+++ b/options.c
@@ -1511,6 +1511,23 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .parent = "norandommap",
                .def    = "0",
        },
+       {
+               .name   = "random_generator",
+               .type   = FIO_OPT_STR,
+               .off1   = td_var_offset(random_generator),
+               .help   = "Type of random number generator to use",
+               .def    = "tausworthe",
+               .posval = {
+                         { .ival = "tausworthe",
+                           .oval = FIO_RAND_GEN_TAUSWORTHE,
+                           .help = "Strong Tausworthe generator",
+                         },
+                         { .ival = "lfsr",
+                           .oval = FIO_RAND_GEN_LFSR,
+                           .help = "Variable length LFSR",
+                         },
+               },
+       },
        {
                .name   = "random_distribution",
                .type   = FIO_OPT_STR,