Hi.. > I get the same drop in bogomips, but I did not get a slower system...
is the taskswitching and launching (sub)shells in the same speed like your 2.2.20-smp kernel? On my sparc a single running task by itself was fast but switching between 2 active tasks take neerby 1 sec pause. (may be a spezial Problem on CPU's with BIG! caches like my 142MHz/1M) On my 2.2.20-smp system switching is very much! faster. > > > This all seem to be compiler/bintools dependend (gcc 2.95 vs. egcs32) > > and some People say, the 2.4.18 and up may be stable on not-ROSS-cpu's > > and without smp. > > Did you try with egcs? I wonder if that is true... yes... SuSE say, gcc 2.95.x on sparc is buggy and the only way to get a well running 2.2.x Kernel is egcs32. But egcs isn't able to compile 2.4.x ImhO gcc 2.95.x is not buggy and able to build a 2.2.x but i'm not sure about the 2.4.x Kernel and gcc (code generation) and there are some important dependicies not covered by Compiler versions. startupcode/loader in silo and kernel alignment vs. bintools Versions vs. compiler versions vs. Bootprom version (Sparc/Ross) and Number vs. CPU Hardware Type of MMU/Core (cpu bugs ?) vs. ??? vs. something more i've forgotten to count up? Take a look in arch dependend kernel source files an you know what i mean! It will be a very difficult Task to hunt Bugs in this area... damn! And without cpu-docu.... pfff... > > > IMHO it is a Problem nearby the Ross MMU or in managing the CPU-Cache. > > Can someone post assembler language docu for Ross cpu's to my Adress? > > I'll try to hunt the Bug but there is rare docu on the Web. > > I asked for this information on [email protected], but nobody > answered... probably they did not like my mail ;) > I will try to help if I can, but I'm a greenhorn concerning the kernel > code... and sparcs. Hm.. guys with sparcs AND linux are the minority in the mainstream but guys with sparcs AND linux AND more then 1 ROSS cpu are the crazy part of a minority in the mainstream... :-) :-) :-) [Greetings to Propellerhead aldo :-)] I'm a greenhorn too but who cares? Rolf
