Hi, On Mon, Feb 11, 2019 at 08:38:00PM -0200, Alexandre Oliva wrote: > On Feb 11, 2019, Tom Li <to...@tomli.me> wrote: > >> and, more recently, a very slow system overall, that's been present since > >> 4.20. > > > The mainline framebuffer driver doesn't have any hardware drawing, printing > > even a single line on the console is required a full screen redraw via > > memory- > > That doesn't seem to explain even a quiet boot up taking several times > longer than 4.19, and package installation over an ethernet connection > (thus not using the console) also taking several times longer.
Maybe it's a slow disk? ATA (libata) CS5536 driver is having issues with spurious IRQs and often disables IRQs completely during the boot. You should see a warning in dmesg. This was the reason for slowness on my FuLoong mini-PC. A workaround is to switch to old IDE driver. Discussion: https://lore.kernel.org/linux-mips/20190106124607.gk27...@darkstar.musicnaut.iki.fi/ A.
