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Re: Does the KA630 have a TB?



I think the performance of the simulated VAX is somewhat disappointing, with that hardware... I would have expected more...

Hmm. Now I guess I need to fire up simh and compare... Or have you done that already?

  Johnny

On 2023-09-25 17:28, Mouse wrote:
I've just started a(nother) build of the 1.4T+mouse world on my
emulated VAX.  I started rebuilding the kernel last night; it's
10:29:17.35 in and it's working on uipc_syscalls.c [...]
So your emulation is a bit slower than an 11/785, it sounds like.
Maybe close to an 11/780.

This is without any JITting.  I've never built a jitter, so I expect
that to take significant time - once I _find_ the time, that is.

And, of course, speed also depends on the underlying machine.  In this
case, that means

cpu0: Intel Pentium 4 (686-class), 1594.95 MHz, id 0xf12
cpu0: features 0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features 0x3febfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
cpu0: features 0x3febfbff<FXSR,SSE,SSE2,SS,HTT,TM>
cpu0: "Intel(R) Pentium(R) 4 CPU 1.60GHz"
cpu0: I-cache 12K uOp cache 8-way, D-cache 8KB 64B/line 4-way
cpu0: L2 cache 256KB 64B/line 8-way
cpu0: ITLB 4K/4M: 64 entries
cpu0: DTLB 4K/4M: 64 entries
cpu0: Initial APIC ID 0
cpu0: Cluster/Package ID 0
cpu0: family 0f model 01 extfamily 00 extmodel 00 stepping 02

But if-and-when I do write a jitter, it won't be for x86/x64; I'd
instead pick a machine I know better, probably SPARC.

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Johnny Billquist                  || "I'm on a bus
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