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Depends, 64bit can certainly give you more throughput, but it is very slow
for being patched.
"Do not criticize someone until you walked a mile in their shoes, that way
when you criticize them, you are a mile a way and have their shoes."
Christopher R. Spence
Oracle DBA
Phone: (978) 322-5744
Fax: (707) 885-2275
Fuelspot
73 Princeton Street
North, Chelmsford 01863
-----Original Message-----
Sent: Friday, September 14, 2001 3:50 PM
To: Multiple recipients of list ORACLE-L
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Is there any benefit of 64 bit versions over 32 bit versions of Oracle
beyond allowing > 2GB SGAs? (8.1.7/Solaris 2.8 in particular) The
systems I'm working with are predominantly DSS queries against data sets
that most of the servers have no hope of caching anywhere near the amount
of data needed so huge SGAs are not that useful. Our C++ guys tell me
that Sun reccommends that compiling 64 bit binaries for processes that
might take advantage of the larger memory limit. The logic being that 64
bit pointers take up twice as much space as 32 bit pointers and the
processor cache density is thus lower for 64 bit processes.
Does anyone know if there is any additional trickery Oracle does on the
64-bit port that may provide performance benefits that would outweigh the
potential for lower cache hit rates? Magic data structures?
_make_sql_faster support?
S-
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