Date: Wed, 19 Apr 1995 14:47:56 +0400 (GMT+0400) From: Anthony Graphics <agl@mac.glas.apc.org> To: "Russell L. Carter" <rcarter@geli.com> Cc: asami@cs.berkeley.edu, hackers@FreeBSD.org, rcarter@geli.com Subject: Re: Case for FreeBSD presentation docs? Message-ID: <Pine.LNX.3.91.950419144111.30891B-100000@mail.redline.ru> In-Reply-To: <199504190325.UAA01659@geli.clusternet>
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On Tue, 18 Apr 1995, Russell L. Carter wrote: > Date: Tue, 18 Apr 1995 20:25:55 -0700 > From: Russell L. Carter <rcarter@geli.com> > To: asami@cs.berkeley.edu, hackers@FreeBSD.org > Cc: rcarter@geli.com > Subject: Re: Case for FreeBSD presentation docs? > > In addition to the other observations: > > 1. Linux has dreadful nfs performance. I can supply ample details. > But maybe you should ask the Linux folks. There doesn't appear to > be hope anytime soon, either. Do you mean client or the server side? > 2. Linux ncr scsi (up until a month or so ago, maybe still) is broken. > It is a sad thing to watch the ncr list. And what about performance 8-0. I'm running Linux on Intel SP3G (Saturn 4 chipset) machine with no problems. Performance is noticeably much higher than on the Adaptec 1542C. I'm running 1.2.5 It such only in the scheduler and serial IMHO Somebody could explain to me how to make cursor to appear at the _lower_ end of the char. position in the FreeBSD? (sc0) How to switch between consoles in vt0? AGL > 3. I am running a 4 cpu cluster with scalapack and FreeBSD-somewhat-current. > Just starting to benchmark it. BLACS, PB-BLAS, LAPACK all build and test > fine. > 4. My company just bid for a project that uses Intel Paragons up till now, > but price/performance with FreeBSD and the ASUS TP4-PB is 8x better (for > the same performance). > 5. I have pvm3, mpich, and nxlib up and running real problems. > 6. And hot off the presses: dgemm runs 14-23 MFlops/sec with gcc-i2.6.3. > 7. You can get > 5MB/s from commodity disks. (Maybe that weird non-local > memory caching idea is not so important ;-) > 8. Matt's comments on 100BaseT vs. FDDI performance are true, but the > price is not similar. But the upshot is there are at least 2 10MB/s > technologies supported. (Thanks to Matt). > > Succintly, I can build scalable 2k Flops/sec/$ systems using FreeBSD. Not even > the most recent J-90 comes close. > > Cheers, > Russell >
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