In message <[email protected]> David Pitt <[email protected]> wrote:
> In message <[email protected]> > george greenfield <[email protected]> wrote: > >> In message <[email protected]> >> David Pitt <[email protected]> wrote: > >>> Peter Howkins, on 23 Oct, wrote: >>> [Snip] > > I have just tried a brief test or two but they don't really tell us > much. The tests are !Desk_Bogo and Dhrystones. > > bogomips dhrystones > > Ubuntu 12.04 on VMware on an iMac, rpcemu 0.8.11 > Phoebe OS3.80 Interpreter 41 98,396 > SA110 OS5.21 Recompiler 117 481,463 > > This is not like for like, no surprises, the Recompiler is a lot > faster. > > Mac OS X Mavericks, rpcemu 0.8.9 > SA110 OS5.21 Recompiler 159 627,746 ROMark scores c.610k dhrystone MIPs on my 0810/520 Recompiler installation here, running on a Dell XPS 3.4GHz i7 Win7/64 platform. > > This is more interesting there is that much difference between the > Virtual Machine and native installations. > > Mac OS X Mavericks, VRPC > OS4.39 320 484,730 > > There is the oft repeated story that !Desk_Bogo favours VRPC, but > Dhrystones indicate rpcemu is faster. Indeed: that suspicion is supported by Chris Hall's benchmarks here https://www.riscosopen.org/forum/forums/5/topics/466?page=8 where VRPC on a 2668MHz PC gives only 175% compared to a bog-standard S/ARM RPC, i.e. 1524MHz = 100%; the corresponding figure for RPCEmu here is approx. 1000MHz = 100%. Obviously that assumes a similar processor type in the 2668MHz machine, which may not be the case. > > Raspberry Pi > OS5.21 401 995,024 That's a very high dhrystone figure for a Pi: I got 450,080 when I tested one recently. > > Emulators not too dusty then! No indeed. > > Phoebe in hardware might have been a step forward but that might not > apply to an emulation. > As Peter H has just explained. -- george greenfield _______________________________________________ Rpcemu mailing list [email protected] http://www.riscos.info/cgi-bin/mailman/listinfo/rpcemu
