Date: Sun, 16 Nov 1997 22:24:01 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Simon Shapiro <Shimon@i-connect.net> Cc: current@FreeBSD.ORG Subject: Re: make world time???/ Message-ID: <199711170624.WAA01031@rah.star-gate.com> In-Reply-To: Your message of "Sun, 16 Nov 1997 21:52:30 PST." <XFMail.971116215230.Shimon@i-Connect.Net>
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It is "Dyson Time" !!! Me, I suspect is gcc 8) I concurr with your figures about kernel build time. Cheers, Amancio > > Hi Amancio Hasty; On 16-Nov-97 you wrote: > > > > Cool! > > > > > > I am curious as for the make world time on a dual PPro system with > > fast disks. It looks like we are very cpu bound with fast disks. > > > > Tnks, > > Amancio > > I think it bottoms (for a FULL build) at 100 minutes or SO. > Disk I/O stops being an issue around there. > Memeory is not a problem either. > > On a P6-200x2, with 256MB of RAM, a DUAL DPT 3334UW, > /usr/src/ on a 5x RAID-5 array, /usr/obj on a 8x RAID-0 array, > DPT with 64MB of RAM, we are just at 84 minutes. > This is with -pipe, noatime, async, -j8, etc. > I could not verify putting /tmp /var/tmp on mfs as the system reliably > crashes. > > The ``disk'' I/O is at about 200-400 I/O per second - about 1/9th of the > capacity of such a system, memory has over 120MB of free RAM, so we are not > gaining much. What I do NOT know, and asked before (maybe I should name > names :-), is is it CPU saturation, PCI saturation or RAM saturation? > The system reports 80-95% CPU utilization in kernel, 70-80% in user space. > > I have an AMI Goliath on order. It is supposed to have tow independant PCI > busses, on the Orion chipset. Let's see then. > > Simon >
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