Created by: barrierye

运行fit_a_line rpc版本，client端输出如下：

...
W0428 14:31:47.450724 16876 stub_impl.hpp:136] Already thread initialized for stub
[15.941795] 11.7
W0428 14:31:47.451251 16876 stub_impl.hpp:136] Already thread initialized for stub
[13.50612] 11.8
W0428 14:31:47.451813 16876 stub_impl.hpp:136] Already thread initialized for stub
[16.184656] 14.3
W0428 14:31:47.452328 16876 stub_impl.hpp:136] Already thread initialized for stub
[17.122538] 18.4
W0428 14:31:47.453011 16876 stub_impl.hpp:136] Already thread initialized for stub
[20.431929] 29.8
W0428 14:31:47.453507 16876 stub_impl.hpp:136] Already thread initialized for stub
[17.51116] 20.0
W0428 14:31:47.454071 16876 stub_impl.hpp:136] Already thread initialized for stub
[16.96036] 14.6
W0428 14:31:47.454600 16876 stub_impl.hpp:136] Already thread initialized for stub
[22.351873] 20.6
W0428 14:31:47.455077 16876 stub_impl.hpp:136] Already thread initialized for stub
[21.23216] 23.7
W0428 14:31:47.455574 16876 stub_impl.hpp:136] Already thread initialized for stub
[14.414518] 12.8