A3640 V3.0 refuses to run speed test on SysInfo V3.24 ?!

[Piru]

SysInfo is really old and has all sort of bugs in it, some which will crash it randomly on 040 and 060 systems. Crashes are normal with this program. You're better off by not using SysInfo at all.

Try SysSpeed.

PS. MIPS is useless info really, and you can't compare MIPS numbers of different programs. Real life benchmarks give you better idea of the performance.

[Piru]

Probably there is.

Just use SysSpeed ok?

[Piru]

@Effy

Get over it already. SysInfo is buggy as hell. Use some other program.

[Piru]

@CatHerder

Will your Amiga run slower with an LC chip? Absolutely not. Will it run slower if you use specific applications requiring, or benefitting from an FPU? NO. The only time you will notice ANY problems is if you intend to run Unix on your Amiga (an A3000UX for example because Unix requires a MMU). Other than that, there is no "bad thing" about having an LC chip in an Amiga.

68040/68060 Amiga requires MMU for proper DMA operation (DMA + CopyBack cache). The reasons are described in the Enforcer documentation (in the Enforcer.guide: 'Enforcer', 'Important 680x0.library developer notes' and 'COPYBACK mode and DMA').

Naturally you can run the system without copyback cache, but the performance will be poor then.

[Piru]

@CatHerder

For some reason I trust Michael Sinz more than some motorola/commodore rep :-)

[Piru]

@Kin-Hell

I'd also like to add, some post'ees in this thread just Blamed SysInfo for being Buggy. Not the case...

Code: [Select]

; hunk 0, offset $33DE

        lea     $7FFFC,a1
        lea     $2000.w,a0
.iloop  move.l  (a0)+,d0
        cmp.l   a1,a0
        blt.b   .iloop

From SysInfo 3.24


The code is assuming that address $2000 is accessable. In certain cases the mapped memory only begins at $4000, and SysInfo will nuke (the test is executed in a way that any exception will kill the system).

Correct chipmem start address would easily be available from the chip memory MemHeader.

[Piru]

Did my quoting confuse someone?