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