From mlopez@uni-hamburg.de Wed Mar 06 21:41:23 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!mlopez From: mlopez@uni-hamburg.de (Marisol López) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar06.214123.9779@uni-hamburg.de> Date: Wed, 06 Mar 1996 21:41:23 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Marisol López "Do not worship the copy." NeXTstation Turbo Color / SunOS 4.1.4 From mhernandez@purdue.edu Fri Mar 08 23:27:23 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!purdue!mhernandez From: mhernandez@purdue.edu (Mei Hernández) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar08.232723.6641@purdue.edu> Date: Fri, 08 Mar 1996 23:27:23 GMT References: <1996Mar06.214123.9779@uni-hamburg.de> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Mar06.214123.9779@uni-hamburg.de>, mlopez@uni-hamburg.de (Marisol López) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- === Mei Hernández === Dept of Electrical Engineering, Purdue University Engineering Computer Network "They will send a copy in my place." From cokonkwo@berkeley.edu Sun Mar 10 22:13:23 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!berkeley!cokonkwo From: cokonkwo@berkeley.edu (Callum Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar10.221323.1445@berkeley.edu> Date: Sun, 10 Mar 1996 22:13:23 GMT References: <1996Mar06.214123.9779@uni-hamburg.de> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Mar06.214123.9779@uni-hamburg.de>, mlopez@uni-hamburg.de (Marisol López) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Callum Okonkwo Tape trading list upon request. SASE required for international mail. From yduarte@rwth-aachen.de Mon Mar 11 18:45:23 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!yduarte From: yduarte@rwth-aachen.de (Yuki Duarte) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar11.184523.1471@rwth-aachen.de> Date: Mon, 11 Mar 1996 18:45:23 GMT References: <1996Mar06.214123.9779@uni-hamburg.de> <1996Mar10.221323.1445@berkeley.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Mar10.221323.1445@berkeley.edu>, cokonkwo@berkeley.edu (Callum Okonkwo) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Yuki Duarte Opinions expressed are solely my own and not those of RWTH Aachen Informatik. ------------------------------------------------------------ From mdubois@demon.co.uk Wed Mar 13 15:08:23 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!demon!mdubois From: mdubois@demon.co.uk (Min-jun Dubois) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar13.150823.6210@demon.co.uk> Date: Wed, 13 Mar 1996 15:08:23 GMT References: <1996Mar06.214123.9779@uni-hamburg.de> <1996Mar10.221323.1445@berkeley.edu> <1996Mar11.184523.1471@rwth-aachen.de> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Mar11.184523.1471@rwth-aachen.de>, yduarte@rwth-aachen.de (Yuki Duarte) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Min-jun Dubois *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0