Re: bin/53285: Build times tripled with make/job.c 1.193

["Simon J. Gerraty" <sjg%juniper.net@localhost>]

The following reply was made to PR bin/53285; it has been noted by GNATS.

From: "Simon J. Gerraty" <sjg%juniper.net@localhost>
To: Martin Husemann <martin%duskware.de@localhost>
Cc: <gnats-bugs%NetBSD.org@localhost>, <sjg%juniper.net@localhost>
Subject: Re: bin/53285: Build times tripled with make/job.c 1.193
Date: Mon, 14 May 2018 12:19:58 -0700

 Martin Husemann <martin%duskware.de@localhost> wrote:
 
 > Stupid question: can't we use proper sem_timedwait(3) or similar and
 > be done?
 
 Yes and no.
 First off the busy wait issue was red-herring so no need to do anything
 on that front.
 Second - for bmake anyway, use of something like sem_timedwait could
 likely pose portability issue, nothing insurmountable but still a
 potential issue.
 
 Thanks
 --sjg