cmd/geth,internal: set cpu number when geth starting

[jsvisa]

No description provided.

[karalabe]

I don't really see the point in this? Why would you want to artificially control the threading limit?

[jsvisa]

@karalabe I'm developing geth in local MacOS, if the threading number is not limited, and the geth in syncing process, then the entire system got stuck. So I've to limit the geth threading number to reduce the cpu usage.

[fjl]

I think there is a simpler way: let's remove the call to runtime.GOMAXPROCS. Then you can set it in your shell environment. It's OK to remove this call because the runtime defaults to number of CPUs anyway.

[jsvisa]

@fjl thanks for your reply, LGTM, and @karalabe what's your opinion?

[karalabe]

We can do that too, yes. I didn't know they changed it.

[jsvisa]

@fjl remove the call to runtime.GOMAXPROCS() , PTAL

[stvenyin]

I 'm know cmd/internal/browser communication tools