Eric Anderson <anderson_at_centtech.com> writes: > I noticed that changing to 16bit (instead of 32 or 24) helped a lot. ...because more pixels fit in a single 64 kB page, so the console code doesn't have to switch pages as much while redrawing the screen. Switching pages requires switching to virtual x86 mode (stalling the CPU and invalidating the cache) to invoke the VESA BIOS. On graphic adapters with linear framebuffer support (pretty much all of them today), you can map the entire framebuffer into memory to avoid paging, but our VESA driver doesn't know how to do that. DES -- Dag-Erling Smørgrav - des_at_des.noReceived on Thu May 26 2005 - 18:28:54 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:38:35 UTC