[OpenBIOS] [PATCH] RFC: Increase dictionary size on SPARC64

Mark Cave-Ayland mark.cave-ayland at siriusit.co.uk
Tue Apr 13 21:16:18 CEST 2010


Blue Swirl wrote:

>>  I honestly don't know enough to make an informed choice, although my
>> feeling is that since PPC has 512K (and it will obviously be enough to solve
>> the problem with OpenSolaris) then it can't be too bad an option. Does
>> anyone else have a feeling one way or the other?
> 
> One possible problem may be that we overrun the 32 bit address space,
> because there is only 3M available: 0xffd00000 to 0xffffffff.

Hmmm. Would that matter even for a 64-bit architecture like SPARC64? It 
wouldn't affect any of the other architectures except for PPC which 
already has a default of 512K rather than 256K. Also even with 
MEMORY_SIZE and DICTIONARY_SIZE set to 512K, that's still just 1M...


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063

Sirius Labs: http://www.siriusit.co.uk/labs



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