4 ms·

Sigh. SGI had this in Ultrix in 1991-1992ish (maybe earlier). Why? Their market was graphics. If anything non-essential prevented the system from rendering a

Sigh. SGI had this in Ultrix in 1991-1992ish (maybe earlier). Why? Their market was graphics. If anything non-essential prevented the system from rendering a frame, an attempt was made to run that on another processor. I remember a 4 processor reality engine^2 that had four processors. 1 processor was dedicated to graphics. another to networking. I don't recall what the other 2 were for.

reeses 14y ago
SGI = IRIX, DEC = Ultrix What you're thinking of is different from task/processor/thread affinity. Regarding SGI, I'm guessing you're thinking about the Onyx, which would have put it about 1993+. The R4x00s that were in the machine were not powerful enough to drive the RE2 and IR boards on a shared basis. The scheduler on many of these machines (Ultrix and IRIX both, along with Unicos, etc.) all pretty much sucked at the time, with AIX being a notable exception in some environments, especially running under VM. You still see dedicated task processors with the z-series and maybe i as well today.