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? Message-ID: <199504190325.UAA01659@geli.clusternet>
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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. 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. 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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