maria-developers team mailing list archive

[Vadim Tkachenko <vadim@xxxxxxxxxxx>]

Kristian,

Ok, thank you.

Please let me know if some code changes required from our side!



Kristian Nielsen wrote:
> Kristian Nielsen <knielsen@xxxxxxxxxxxxxxx> writes:
>
> > I think there are two issues here.
> >
> > One is that we are replacing InnoDB with XtraDB in MariaDB. Thus we need
> > XtraDB to build and work on all the platforms that MariaDB should work on.
> >
> > The other is to get good performance/scalability of XtraDB. This is very
> > important on the major platforms, but maybe not on all platforms.
> >
> > So it seems that right now XtraDB relies on GCC intrinsics for the performance
> > improvements. I personally think this is fine. We can build with GCC on the
> > main performance platforms I think. The main non-GCC platform currently is
> > Windows, so we need XtraDB to build and work with non-GCC, but I think for now
> > 8CPU+ scalability on Windows is not the most important priority.
> >
> > Later we can then add Windows method for scalability, or maybe switch to also
> > build with GCC on Windows.
> >
> > > I am not sure what to do with this, I also need to look into
> > > InnoDB-plugin 1.0.3, what solution they have and may be use new InnoDB
> > > rw_locks instead of ours. Anyway - this is something to discuss.
> > Ok.
> >
> > I will also look closer as time permits, checking the ./configure tests
> > (already discussed this a bit with Sergei Golubchik) and the build failures
> > when INNODB_RW_LOCKS_USE_ATOMICS is not defined.
>
> Just to avoid duplicate work, let me just mention that I am now starting to
> look into this issue. I will try to find a good way to make XtraDB
> compile/work on all the platforms/compilers we want to support, and report
> back what I discover.
>
>  - Kristian.


--
Vadim Tkachenko, CTO
Percona Inc.
ICQ: 369-510-335, Skype: vadimtk153, Phone +1-888-401-3403
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