On Tue, Jan 4, 2011 at 10:20 AM, Igor Stasenko <siguctua at gmail.com> wrote:

> On 4 January 2011 08:45, Levente Uzonyi <leves at elte.hu> wrote:
> > On Mon, 3 Jan 2011, Eliot Miranda wrote:
> >
> >> On Sun, Jan 2, 2011 at 11:38 PM, Levente Uzonyi <leves at elte.hu> wrote:
> >>
> >>> Quoting Chris Muller <asqueaker at gmail.com>:
> >>>
> >>>  Levente wrote:
> >>>>
> >>>>  I think we should wait for the new VMs, before releasing the new
> >>>> images.
> >>>>>
> >>>>
> >>>> Hi Levente,
> >>>>
> >>>> I did agree, but now that Eliot is on a tear with a new code
> >>>> generator, the first official release might still be some weeks away.
> >>>> Someone please correct me if that is a misstatement.
> >>>>
> >>>> It seems unlikely 4.2 will be incompatible with whatever ends up being
> >>>> the first official Cog release.  We should consider pushing it out the
> >>>> door so we can re-open the trunk to new featurey.
> >>>>
> >>>
> >>> That's right, Cog's recent improvements introduced some instability. So
> I
> >>> think we should release Squeak 4.2 with SqueakVM only and postpone the
> >>> multi-VM release. We can also make the release cycle of Squeak 4.3
> >>> shorter
> >>> to catch up with the two release per year policy and deliver the VM
> >>> improvements earlier. I'm also sure that a lot of improvements will be
> >>> done
> >>> till April/May on both image and VM side.
> >>>
> >>
> >> It would be my preference to release with the Cog VM using the naive
> >> SimpleStackBasedCogit code generator.  After all that's worth at least
> 3x
> >> over the standard VM whereas the unstable StackToregisterMappingCogit is
> >> only ~ 8% faster than SimpleStackBasedCogit.  It's quite easy for me to
> >> generate either; the two coexist in the same VMMaker.
> >
> > Okay, then I guess we should make sure that the two VMs (SqueakVM and
> > CogVM with SimpleStackBasedCogit) behave the same way in most cases.
> Here's
> > an incomplete list of VM differences:
> > - CogVM does compile the FloatMathPlugin properly (no crash), but
> SqueakVM
> > doesn't or it does without optimizing the code. Wwe can apply some
> > optimization for most methods, see the makefiles of Cog.
> > - CogVM doesn't support the new finalization scheme
>
> this is easy to fix, if Eliot would merge my changes to VMMaker,
> like VMMaker-oscog-Igor.Stasenko.43 and build new VM's using merged
> version.
>

Soon :)


>
> > - there's no SoundPlugin in CogVM on windows
> > - the SocketPlugin of CogVM seems to be missing the new primitives
> > - AllocationTest >> #testOneGigAllocation is still failing with CogVM
> > - I'm not sure if SqueakVM has all of the mirror primitives
> >
> >
> > Levente
> >
> > P.S.: does the ~8% speedup come from the recompilation benchmark? Is the
> > code for the Computer Language Benchmarks Game available somewhere? It
> > would be good to test the new stdio support with it.
> >
>
>
>
> --
> Best regards,
> Igor Stasenko AKA sig.
>
>
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