hot/cold FlameGraph 目前可以使用进行性能测试分析么？

[memory-thounght]

hot/cold FlameGraph 应该如何生成呢？ 生成火焰图没有解决以下的问题
Filtering for events of type: cpu_atom/cycles/
Argument "std::ratio<1l," isn't numeric in numeric ne (!=) at ./FlameGraph/dev/hotcoldgraph.pl line 161, <> line 73.
Argument "1000000000l>" isn't numeric in addition (+) at ./FlameGraph/dev/hotcoldgraph.pl line 189, <> line 73.