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Re: [RFC]serialize the output of parallel make?

From: Chiheng Xu
Subject: Re: [RFC]serialize the output of parallel make?
Date: Fri, 30 Jul 2010 17:31:47 +0800

On Fri, Jul 30, 2010 at 5:27 PM, Tim Murphy <address@hidden> wrote:

> No, I understand better than you think as I do huge parallel builds every day.
> The shell wrapper buffers the recipe output and then grabs a semaphore
> before writing the output to it's stdout..  if another recipe has
> completed and is in the process of outputting to the stdout then it
> has to wait a few microseconds.

The use of semaphore may impair performance.

Chiheng Xu

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