mdixon@thelonius.PARC.xerox.com (Mike Dixon) (07/06/89)
i tried a simple root-finding benchmark and got 40s for my NeXT vs. 30s on a mac IIx. given that the mac is running the same hardware slower, this is presumably a combination of (a) higher OS overhead, and (b) better performance-tuning in the mac version. on the other hand, the OS overhead shouldn't be *that* high (none of the other processes were compute bound, and there's 16MB of memory; i ran the test several times and got quite consistent timings). and i don't understand why the code in question (kernel) isn't identical between the two machines (what's the point of separating kernel & front end if you don't share the kernel code??). so what's happening?