Add new writetrim rw= mode for trims preceding writes

[fio.git] / options.c

diff --git a/options.c b/options.c
index 1857d4115f9a80234ec8aec2bb4a591405448a70..d7ce94bb75c7129cf5e4ff2bc663143ef537d63b 100644 (file)
--- a/options.c
+++ b/options.c
@@ -744,8 +744,13 @@ static int str_random_distribution_cb(void *data, const char *str)
                        return 1;
                }
                td->o.pareto_h.u.f = val;
-       } else
-               td->o.gauss_dev = val;
+       } else {
+               if (val <= 0.00 || val >= 100.0) {
+                       log_err("fio: normal deviation out of range (0 < input < 100.0)\n");
+                       return 1;
+               }
+               td->o.gauss_dev.u.f = val;
+       }
 
        return 0;
 }
@@ -1411,6 +1416,10 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                            .oval = TD_DDIR_RANDRW,
                            .help = "Random read and write mix"
                          },
+                         { .ival = "writetrim",
+                           .oval = TD_DDIR_WRITETRIM,
+                           .help = "Write and trim mix, trims preceding writes"
+                         },
                },
        },
        {