Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!homxb!homxc!dwc From: dwc@homxc.UUCP Newsgroups: comp.arch,comp.unix.wizards Subject: Re: Kernel build times, esp. on Amdahl Message-ID: <629@homxc.UUCP> Date: Wed, 8-Jul-87 22:15:37 EDT Article-I.D.: homxc.629 Posted: Wed Jul 8 22:15:37 1987 Date-Received: Sat, 11-Jul-87 14:57:30 EDT References: <502@winchester.UUCP> Organization: AT&T Bell Laboratories, Holmdel Lines: 26 Keywords: benchmarks Xref: utgpu comp.arch:1473 comp.unix.wizards:2927 In article <502@winchester.UUCP>, mash@mips.UUCP (John Mashey) writes: > 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. i don't know about kernel builds but i once ported a cross compiler enviroment in order to run a benchmark on an amdahl and the make went so fast that i thought that i was 'cat'ting the makefile! danny chen {ihnp4|attunix}!homxc!dwc