fix setting GOMAXPROCS #853
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wulorn
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wulorn
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simultaneously and returns the previous setting. It defaults to the value of runtime.NumCPU
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wulorn
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不需要显示设置GOMAXPROCS，未设置时默认值就是runtime.NumCPU，设置后因为init的执行顺序会影响在容器中设置的环境变量
GOMAXPROCS 是 Golang 提供的非常重要的一个环境变量设定。通过设定 GOMAXPROCS，可以调整 Runtime Scheduler 中 Processor（简称P）的数量。由于每个系统线程，必须要绑定 P 才能真正地进行执行。所以 P 的数量会很大程度上影响 Golang Runtime 的并发表现。GOMAXPROCS 一般的默认值是 CPU 核数，在容器中一般会通过 cgroup 等技术对 CPU 资源进行隔离。
issues #851