Date: Mon, 17 Jul 2000 23:44:43 +0200 From: Joachim =?iso-8859-1?Q?Str=F6mbergson?= <watchman@ludd.luth.se> To: FreeBSD-Stable <freebsd-stable@FreeBSD.ORG> Subject: Re: Parallel kernel make Was Re: kernel.debug (was Re: HEADS UP! Always use the 'make buildkernel' target to make your kernels) Message-ID: <39737E4B.C95A5705@ludd.luth.se> References: <Pine.BSF.4.21.0007111324170.27918-100000@fling.sanbi.ac.za> <v0422080fb590c5bfdca5@[195.238.1.121]> <396F4463.978AE0DA@newsguy.com> <hf9q1x2z.fsf_-_@pc166.gits.fr> <3971FA68.3A3C5F17@ludd.luth.se>
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Hi! (To Kris et al) No, I didn't expect parallel make of the kernel to give me problems. Cyrille asked if it was possible, I hadn't done it up til now, and I simply verified that it did work. No surprises. Yes, I'm fully aware that make -j4 means that more resources are being allocated that a simple single thread make. I felt that SETI was being slowed down more that my normal make -j(6-8) buildworld usually does. But, this is what I felt, meaning it's not a very strong proof of this actually reflecting the behaviour. Yes, I have a SMP system and do parallel builds on a regular basis. The Handbook suggests -j flags in the area of 6 to 8. I've done some tests and we are talking a few minutes difference between 4 to 8, where a build takes about 70 mins. The total time should drop somewhat on Thursday when I get the new CPU:s (party! :-) As I said, it was for kicks - and to answer Cyrilles question. -- Cheers! Joachim - Alltid i harmonisk svängning --- FairLight ------ FairLight ------ FairLight ------ FairLight --- Joachim Strömbergson ASIC SoC designer, nice to CUTE animals Phone: +46(0)31 - 27 98 47 Web: http://www.ludd.luth.se/~watchman --------------- Spamfodder: regeringen@regeringen.se --------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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