Date: Tue, 22 Jan 2002 16:03:38 -0500 From: Mike Tancsa <mike@sentex.net> To: Kent Stewart <kstewart@owt.com> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: make -j4 world Message-ID: <5.1.0.14.0.20020122160206.0475a170@marble.sentex.ca> In-Reply-To: <3C4DD3D9.3000206@owt.com> References: <5.1.0.14.0.20020122145124.03cd1380@marble.sentex.ca> <5.1.0.14.0.20020122145124.03cd1380@marble.sentex.ca> <5.1.0.14.0.20020122151930.03d62220@marble.sentex.ca> <3C4DCB91.7080701@owt.com> <3C4DCDE7.C5E77C03@math.missouri.edu> <20020122125645.1a0c9b36.sreese@codysbooks.com>
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Just successfully completed a -j2 on the same machine. Apart from rm -R
/usr/obj nothing was/is different. What extra debugging information can I
provide to help track this down ? The machine is not in production so I
can do with it as needed.
---Mike
At 01:04 PM 1/22/02 -0800, Kent Stewart wrote:
>Scott Reese wrote:
>
>>On Tue, 22 Jan 2002 14:39:03 -0600
>>Stephen Montgomery-Smith <stephen@math.missouri.edu> wrote:
>>
>>>On the "Error in make buildworld" thread I said that I had this problem
>>>on 1 out of 3 machines, so you may not necessarily see this problem. I
>>>only saw this problem on the fastest machine.
>>>
>>I've actually found that on a fast computer (1.6 GHz Pentium IV) using
>>the "-j"
>>flag tends to slow things down a bit. The standard "make buildworld" ran
>>much
>>faster and much more smoothly than "make -j4 buildworld." It was the
>>same with
>>kernel builds. Honestly, with a machine that fast, I don't really see a need
>>for the "-j" flags anyway.
>
>
>That has also been my experience on most of my single cpu systems. I find
>the combination of # of controllers and ATA-100 drives makes a difference.
>I have one XP system setup with a -j4 and the other with -j6. I just
>finished a buildworld. It required 26:40. I have a make script that I
>uncomment the line I want it to use. The make script is setup to use no -j
>to -j12 in steps of 2. The system with -j6 used to be a dual 866
>coppermine and I hadn't noticed that it was still -j6.
>
>There were two threads of build failures and I am not seeing it the
>buildworld fail on this end.
>
>
>Kent
>
>--
>Kent Stewart
>Richland, WA
>
>mailto:kbstew99@hotmail.com
>http://users.owt.com/kstewart/index.html
>FreeBSD News http://daily.daemonnews.org/
>
>
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