I should have been more rigorous -- I had two different changes running on my system, as well as forcing it to use the 12x24 font for a 160x45 console.
If you apply the "Optimized rasops32 putchar" patch I just posted, you should see another significant speedup. -------- Original Message -------- Subject: Re: [PATCH] fast conditional console scrolling From: Paul de Weerd <we...@weirdnet.nl> Date: Fri, June 26, 2020 1:23 am To: jo...@armadilloaerospace.com Cc: "tech@openbsd.org" <tech@openbsd.org> Hi John, I tried your diff. I don't quite see the same 3x improvement that you report, more like 2x. I timed 7 runs of ls -R /usr/ports: Before diff, time ls -R /usr/ports | wc -l 2.897s on average After diff, time ls -R /usr/ports | wc -l 2.707s on average Before diff, time ls -R /usr/ports 2m53.067 on average After diff, time ls -R /usr/ports 1m30.387 on average Note that the 'before diff' runs were with a snapshot kernel. There may be diffs in there that account for the difference between before and after of the no-output runs. See dmesg and full stats below. So, on average, a speed-up of ~48%. Thanks! Paul 'WEiRD' de Weerd
