Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-sdd!megatek!akbar!mark From: mark@akbar.megatek.uucp (mark thompson) Newsgroups: comp.arch Subject: MIPS/MFLOPS ratio Message-ID: <596@megatek.UUCP> Date: 27 Jun 89 20:37:00 GMT Sender: news@megatek.UUCP Reply-To: mark@megatek.UUCP () Organization: Megatek Corporation, San Diego, Ca. Lines: 20 Lately, it seems that the integer performance of popularly available (especially RISC) computers seems to be outrunning the floating point performance. A little paper design for a SPARC system using the latest Cypress IU and FPC/FPU gets me a MIPS/MFLOPS ratio of about 10. This seems a little out of whack... it seems that older scientific processors had ratios in the 3-4 range. Looking a published info on MIPS, and some hand waving gets me a ratio of about 5-6, better but still slow (an aside: what are the MIPS guys doing to get the speeds up higher than the SPARC guys? compilers?) Why is the floating point lagging integer performance so much? What is being done to get this back in balance? -mark -- mark thompson uunet!megatek!mark --