Date: Wed, 25 May 2005 14:59:32 +0900 From: Eric Kjeldergaard <kjelderg@gmail.com> To: Xin LI <delphij@delphij.net> Cc: Jeremie Le Hen <jeremie@le-hen.org>, freebsd-current@freebsd.org, delphij@freebsd.org Subject: Re: [CALL FOR TESTERS] VESA High Resolution Console support from DragonFly Message-ID: <d9175cad0505242259265a12e8@mail.gmail.com> In-Reply-To: <1116999375.731.7.camel@spirit> References: <20050522112612.GA37841@frontfree.net> <20050523003843.GO850@obiwan.tataz.chchile.org> <1116815005.838.3.camel@spirit> <d9175cad05052421282f757528@mail.gmail.com> <1116999375.731.7.camel@spirit>
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2005/5/25, Xin LI <delphij@delphij.net>: > Hi, Eric, > > $B:_(B 2005-05-25$B;0E*(B 13:28 +0900$B!$(BEric Kjeldergaard$B<LF;!'(B > > 2005/5/23, Xin LI <delphij@frontfree.net>: > > > Hi, Jeremie, > > > > > > $B:_(B 2005-05-23$B0lE*(B 02:38 +0200$B!$(BJeremie Le Hen$B<LF;!'(B > > > [snip] > > > > One question however : is it supposed to consume more CPU than classical > > > > non-VESA text mode ? > > > > > > I think so, it should consume more CPU than classical text mode console > > > since it draws characters, rather than giving the responsibility to the > > > video card. A possible optimization would be to map the video card > > > memory into the space. > > > > Tested on my Thinkpad R40 : Radeon 7500. Is it supposed to consume a > > LOT of cpu? Perhaps there's something funny with -O2 or similar > > because some things are VERY slow. I have not, however, noticed any > > major bugs, but screen redraws will take ~1 second if the screen is > > not cleared and thus causes powerd to kick my processor up to full > > speed often. Also, the screensaver (logo_saver) seems to take a while > > to display. The screen goes black for 10 - 15 seconds before the > > screen saver displays. Through all this, though, it's still so worth > > it. > > Yes, it requires more CPU cycles if you use raster mode. Does it also > slow down your console if you are running under text mode? I hope > not :-) > If I'm in text mode it's fine, but of course low-res. When I'm in raster mode I think it's maybe slower than it needs to be? (Slower than similar situations in Linux, for instance.) Also, if I have some terminals in text and some in raster, the switch between them is long. That's hardly a problem by itself, though, as I rarely run mixed terminal resolutions. -- If I write a signature, my emails will appear more personalised.
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