I would really like to see expire gone

Alex Kiernan alexk at demon.net
Mon Feb 3 09:09:32 UTC 2003

bostic at sleepycat.com (Keith Bostic) writes:

> alexk at demon.net (Alex Kiernan) wrote in message news:<b1dhtu$2a3t$1 at FreeBSD.csie
> .NCTU.edu.tw>...
> > Alex Kiernan <alexk at demon.net> writes:
> >
> > OK, I found a bigger box to try on (dual 1GHz UltraSparc III w/ 8GB of
> > RAM)
> >
> > I can insert all 46M articles in the history in 20 minutes (with a
> > 3.95GB cache), unfortunately thats about as far as you could take it
> > entirely in core as Berkeley DB 4.1.25 is limited to a max of 4GB of
> > cache AFAICT (even if you build it 64 bit).
> Berkeley DB is not limited to a 4GB cache, you can create any
> cache size you want.  Most operating systems don't support 
> contiguous memory allocations of more than 4GB, though, so you 
> have to the cache up into logical chunks, each smaller than the
> maximum contiguous allocation for your system.

Ah, I hadn't twigged what that last parameter to set_cachesize was all
about - thanks.

Alex Kiernan, Principal Engineer, Development, THUS plc

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