tools/rados: update the help message

Fixes: #12451
Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/tools/rados/rados.cc b/src/tools/rados/rados.cc
index 73d8ffa5babd38c5e3cf34fd47481ec34939a13b..8bbb27df12005564539f1fb23b22655d0657dbc6 100644 (file)
--- a/src/tools/rados/rados.cc
+++ b/src/tools/rados/rados.cc
@@ -196,11 +196,12 @@ void usage(ostream& out)
 "   --num-objects                    total number of objects\n"
 "   --min-object-size                min object size\n"
 "   --max-object-size                max object size\n"
-"   --min-ops                        min number of operations\n"
+"   --min-op-len                     min io size of operations\n"
+"   --max-op-len                     max io size of operations\n"
 "   --max-ops                        max number of operations\n"
-"   --max-backlog                    max backlog (in MB)\n"
-"   --percent                        percent of operations that are read\n"
-"   --target-throughput              target throughput (in MB)\n"
+"   --max-backlog                    max backlog size\n"
+"   --read-percent                   percent of operations that are read\n"
+"   --target-throughput              target throughput (in bytes)\n"
 "   --run-length                     total time (in seconds)\n"
     ;
 }