New String-related cmdline options

[Paul Hohensee]

What 6714404 means is that the +UseStringCache switch only works if you 
also specify
+AggressiveOpts.  By default, UseStringCache is off, even if 
AggressiveOpts is on, because
at the moment it benefits only some applications on some architectures.  
At some point,
we'll probably make whether it defaults on or off platform dependent, 
but we haven't
completed the necessary analysis yet.

Recall that AggressiveOpts enables optimizations that we believe will 
have general
applicability, but of which we're not yet confident enough to either 
make default on
or platform-dependent default-on.  We'll almost always do one or the 
other in some
future release, so think of AggressiveOpts as a way-station for new 
optimizations.

Paul

On 4/11/11 9:21 AM, David Dabbs wrote:
> Hi.
>
> I see there are some new String-related cmdline opts. StringTableSize and
> UseStringCache. Are there docs concerning the new switches and/or
> diagnostics related to tuning? Just for grins, I specified AggressiveOpts,
> but didn't see UseStringCache set to true, or did I misunderstand this
> patch?
>
>         6714404: Add UseStringCache switch to enable String caching under
> AggressiveOpts
>
>
> Thank you,
>
> David
>
>