Fiber scheduling takes too long

[Fin-chan]

auto start_time = flare::ReadSteadyClock();
flare::fiber::Async([start_time]{
    auto end_time = flare::ReadSteadyClock();
    const auto scheduling_time = std::chrono::duration_cast<std::chrono::microseconds>(end_time - start_time);
    // user code
});

flare::fiber::Async() opens a fiber concatenation to execute and found that the scheduling_time is long, is there any way to analyze and optimize it?

[yinghaoyu]

Try to use perf.

[0x804d8000]

Internals of fiber scheduling are exposed via https://github.com/Tencent/flare/blob/master/flare/doc/debugging.md .

You might be interested in https://github.com/Tencent/flare/blob/master/flare/fiber/detail/scheduling_group.cc#L72 in specific.

Please note that you need open a port via flare::Server to access these variables.

[Fin-chan]

I fixed the problem of long scheduling times for fiber. Thx