From: "Fernando [Quatro]" <fernando@quatro.com.br>
To: "Eric Weigle" <ehw@lanl.gov>
Cc: "Linux kernel mailing list \(lkml\)" <linux-kernel@vger.kernel.org>
Subject: Re: Safety of -j N when building kernels?
Date: Wed, 22 May 2002 14:31:35 -0300 [thread overview]
Message-ID: <00f801c201b6$8d77a7a0$9c0016ac@quatro> (raw)
In-Reply-To: <20020522165320.GC18059@lanl.gov>
> Ok, stupid question of the moment-
>
> I always read about the kernel compilation benchmarks people run on the
> ultra-snazzy new machines, but do people actually run the kernels thus
> generated?
>
> I have visions of a process being backgrounded to generate some files, and
> not completing before the one of the old files gets linked into the kernel
> (because not all files were listed as dependencies, for example).
>
> So are the kernel's current Makefiles really SMP safe -- can one really
> run multiple jobs when building Linux kernels? Any horror stories, or am
> I just paranoid?
I think it's safe... I ran a `make -j` once (dual pIII 933MHz, 1Gb RAM).
The load average went to 200+! In the end, the kernel was fine and booted
all right... I don't do that anymore because it takes longer building with a sane number
in 'make -j N'...
--------------------------------------------------
Fernando Korndorfer - fernando@quatro.com.br
Quatro Informatica Ltda.
Novo Hamburgo - RS/Brasil
--------------------------------------------------
next prev parent reply other threads:[~2002-05-22 17:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-22 16:53 Eric Weigle
2002-05-22 17:24 ` William Park
2002-05-22 17:31 ` Fernando [Quatro] [this message]
2002-05-22 18:29 ` Samuel Flory
2002-05-22 20:03 ` James Stevenson
2002-05-22 23:32 ` Keith Owens
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