example下面的server、client有内存泄漏？

如上图，在一台物理机上，起server_num=3的raft组（example/counter/run_server.sh），同时起run_client.sh(use_bthread=true, thread_num = 100), 压到qps=16w左右，但是内存一直在泄漏？

Start by reproducing the reported setup with example/counter/run_server.sh and run_client.sh: three Raft servers, use_bthread=true, thread_num=100, and roughly 160k QPS. Measure memory over time and inspect the server and client processes to determine whether usage keeps growing. Done means identifying a reproducible leak and its responsible component, or showing that the reported growth cannot be reproduced.

Written by the indexing model from the issue text.