On 09/23/2012 10:19 AM, matthew green wrote: >>>> That's interessting what size does the arena have on the system with >>>> 512mb? Probably limited by NKMEMPAGES_MAX_DEFAULT, so it might need to >>>> be larger on those. >>> >>> i noticed macppc already defines this to 256MB. trying that now. >>> >>> >>> .mrg. >>> >> >> Yes, that's what I think. Having the limit at 1/3 of the kernel address >> space size make sense. >> >> I don't know for sure but the kernel address space and user address >> space on powerpc are disjunct right? So we are not really limited at all >> like on i386. > > KVA on ppc is limited to 512MB i am told. would you then > recommend more like 170MB? > > this works, though there was a long long pause i thought there > was a problem why my build was running though GCC. that's a > different issue, though again it was the page daemon cpu > spinning for a long time. i wonder if it should sleep for a > second if it has looped more than N times in a row without > entering the wait section of the loop. for N=1000 maybe? > > > .mrg. >
ah I see we have 2 segments for the kernel, going to high here will most likely limit the memory for uareas. I would suggest give it a try with 200mb and see if the arenas free memory drops below 10%. Lars -- ------------------------------------ Mystische Erklärungen: Die mystischen Erklärungen gelten für tief; die Wahrheit ist, dass sie noch nicht einmal oberflächlich sind. -- Friedrich Nietzsche [ Die Fröhliche Wissenschaft Buch 3, 126 ]