Hi Ben, On 11.01.2018 20:12, Nobody III wrote: > Along with adding features to the base-hw kernel, I would suggest an > emphasis on improving its performance. I have tried my own Sculpt-like > scenario on that kernel, and I found that the mouse was sluggish when I > tried dragging a window around. I had no such problem on NOVA. > > My particular example indicates that the base-hw kernel has performance > issues that need to be resolved, beyond just its lack of SMP support. I > would like to see it running much more smoothly later this year.
I suspect that the perceived sluggishness is a configuration issue, not a kernel issue. In contrast to NOVA that implements traditional static priorities, base-hw combines priorities with a quota regime. Unless a CPU quota is explicitly defined for a component, the assigned priority remains without effect. Since we use interactive scenarios like Sculpt primarily on NOVA, the run scripts lack any CPU-quota definitions. With no priorities, however, interactive scenarios cannot run smoothly at all. If you disabled them on NOVA, it would look similarly poor. However, I take your posting as another indicator that we should put emphasis on the interactive use of base-hw during 2018. Cheers Norman -- Dr.-Ing. Norman Feske Genode Labs https://www.genode-labs.com · https://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ genode-main mailing list genode-main@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-main