Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!columbia!rutgers!ucla-cs!zen!ucbvax!hplabs!pyramid!prls!mips!mash From: mash@mips.UUCP (John Mashey) Newsgroups: comp.arch,comp.unix.wizards Subject: Kernel build times, esp. on Amdahl Message-ID: <502@winchester.UUCP> Date: Tue, 7-Jul-87 15:37:38 EDT Article-I.D.: winchest.502 Posted: Tue Jul 7 15:37:38 1987 Date-Received: Fri, 10-Jul-87 06:47:50 EDT Lines: 24 Keywords: benchmarks Xref: mnetor comp.arch:1577 comp.unix.wizards:3156 I've been intrigued by Amdahl's recent recuriting ads that say they build a UNIX kernel in 3 minutes. Can anybody from Amdahl say: 1) what model this is on? 2) is 3 minutes CPU time, or real time, and what's the other number? 3) is this optimized or unoptimized? For comparison: UNIX kernel make from scratch times: 4.3BSD+NFS, MIPS M/1000: 239.7u 74.5s 12:39 41% 99+231k 6739+6986io 3167pf unoptimized 492.6u 100.3s 18:53 52% 174+313k 8591+8880io 3901pf optimized -O2 MIPS M/800's are a little slower, take about 15 minutes real, and 6 minutes total CPU time. NOTE: this benchmark is NOT necessarily a good test of anything in particular, but it is of more than passing interest to people who do kernels! [I'm hunting numbers from other machines for next Performance Brief. Mail to me and I'll summarize to the net.] -- -john mashey DISCLAIMER:UUCP: {decvax,ucbvax,ihnp4}!decwrl!mips!mash OR mash@mips.com DDD: 408-991-0253 or 408-720-1700, x253 USPS: MIPS Computer Systems, 930 E. Arques, Sunnyvale, CA 94086