Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!brutus.cs.uiuc.edu!psuvax1!rutgers!bellcore!rruxh!psgrp From: psgrp@thumper.bellcore.com (PSGRP Account) Newsgroups: comp.windows.x Subject: Re: Purdue Speedups Message-ID: Date: 13 Feb 90 19:43:22 GMT References: <222@hal.CSS.GOV> <9002122217.AA27286@xenon.lcs.mit.edu> Sender: news@bellcore.bellcore.com Distribution: usa Organization: Bell Communications Research (Bellcore) Lines: 39 In-reply-to: keith@EXPO.LCS.MIT.EDU's message of 12 Feb 90 22:17:10 GMT In article <9002122217.AA27286@xenon.lcs.mit.edu> keith@EXPO.LCS.MIT.EDU (Keith Packard) writes: >> I was wondering if the current version of X (X11R4) has >> incorporated the Purdue Speedups Version 2.0 or 2.1 to >> speed up the mfb code. >All of the purdue speedups which produced measurable performance increases >were incorporated into X11R4. Additional speedups engineered here at MIT >are also included which produce significant performance improvements >for text, copyarea and 0-width lines. I am revisiting an old problem that I have. I didn't really get enough help to fix the problem. So I am trying again. I am running on a SUN 3/60 (SUNOS 4.0.2) using X11R3. The 3/60 has two frame buffers, one monochrome and one color. Suntools actually takes advantage of this hardware configuration and uses both frame buffers as one display. However, X treats them as two separate desktops. This is all ok, but I ran into a problem on my monochrome desktop. I got overstriking characters and it looked like the fonts were messed up. I was told at the time that the purdue speedups had something to do with it and I didn't get any further. Is this problem taken care of in X11R4. I see a lot of problems with R4 on the net. Is it stable enough to switch? If someone knows more details on the fix for R3, I would also appreciate your reply. > Keith Packard > MIT X Consortium -- ....bellcore!rruxh!monnie or rruxh!monnie@thumper.bellcore.com