When the speed limit parameter value is small, the startup error is reported

[Supergirlzjl]

Test command：

[root@VM-192-20-centos RunnerGo]# memtier_benchmark -s 10.**.13 -p 6379 -a *** --cluster-mode --print-percentiles 50,90,95,99,100 --random-data --randomize --distinct-client-seed --hide-histogram --key-minimum 1 --key-maximum 5000000000 --key-prefix="type_string_write_" --command="set __key__ __data__" --command-key-pattern S --test-time=60 -c 1 -t 10 -d 1024 --rate-limiting=10

Error log：

Writing results to stdout [RUN #1] Preparing benchmark client... [RUN #1] Launching threads now... memtier_benchmark: shard_connection.cpp:357: void shard_connection::push_req(request*): Assertion `m_request_per_cur_interval > 0' failed. Aborted

Can it support low-rate stress testing without reporting errors?