From ckuznetsov@kth.se Tue Feb 07 20:35:58 1995 Path: ashpoly!cascade!brgate!saturno!kth!ckuznetsov From: ckuznetsov@kth.se (Callum Kuznetsov) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb07.203558.5210@kth.se> Date: Tue, 07 Feb 1995 20:35:58 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 10 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Anyone running this on a Quadra 840AV with the 68040? -- Callum Kuznetsov Tape trading list upon request. SASE required for international mail. From kweber@demon.co.uk Wed Feb 08 13:30:58 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!demon!kweber From: kweber@demon.co.uk (Katrin Weber) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb08.133058.2937@demon.co.uk> Date: Wed, 08 Feb 1995 13:30:58 GMT References: <1995Feb07.203558.5210@kth.se> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Feb07.203558.5210@kth.se>, ckuznetsov@kth.se (Callum Kuznetsov) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Katrin Weber "The hatch is open. Is anyone listening?" Amiga 3000T / TOS 4.04 From hmacdonald@mindspring.com Wed Feb 08 20:52:58 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!mindspring!hmacdonald From: hmacdonald@mindspring.com (Hugo MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb08.205258.8408@mindspring.com> Date: Wed, 08 Feb 1995 20:52:58 GMT References: <1995Feb07.203558.5210@kth.se> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Feb07.203558.5210@kth.se>, ckuznetsov@kth.se (Callum Kuznetsov) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- === Hugo MacDonald === Dept of Electrical Engineering, MindSpring Enterprises "Tape doesn't lie at 02:14. Ears do."