Date: Tue, 15 Jan 2008 11:51:24 -0800 From: Chuck Swiger <cswiger@mac.com> To: Chuck Robey <chuckr@chuckr.org> Cc: =?ISO-8859-1?Q?Christoffer_Str=F6mblad?= <cs@wa-sp.com>, freebsd-ports@freebsd.org Subject: Re: Compiling utilizing multiple CPUs Message-ID: <5EE5440B-E722-4638-A5BA-0ACA14CBA808@mac.com> In-Reply-To: <478D0AC4.5080601@chuckr.org> References: <478BF671.7010104@wa-sp.com> <4EA98CBC-8BE3-4195-82A7-3E63C0D70593@mac.com> <478D0AC4.5080601@chuckr.org>
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On Jan 15, 2008, at 11:34 AM, Chuck Robey wrote: >> The quality of the Makefiles or similar used by individual ports >> varies, >> and many of them are not safe to compile in a multithreaded fashion. >> You can set "MAKEFLAGS=-j3" or similar in your environment, but it's >> really not recommended. >> > > I think it's necessary to tell why its not recommend it: because many > makefiles are insufficiently sedt up to correctly allow multiple > cpu's to > work side by side. Well, didn't I just say that above? I assure you that "not safe to compile in a multithreaded fashion" means pretty much the same thing as "not set up to correctly allow multiple CPU's to work side by side". :-) Regards, -- -Chuck
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