----- Original Message -----
From: "Tinny Ng" <[EMAIL PROTECTED]>
Sent: Tuesday, July 31, 2001 5:28 AM
> Ring some bells, but before going further, may be can you first explain
to me
> what does "-assume noaligned-objects" do? I am not familiar to TRU64
Unix....
It has to do with the Alpha 64bit architecture: correct aligned data (a
"quadword" of 64bit) will be fetched directly from the MMU but misaligned
data generates a fetch + mask + shift (eg. the CPU has to do some work as
well).
See
http://csa.compaq.com/Dev_Tips/unalign.htm
for some tips about why this happens and instructions on pinpointing what
code that is generating the warnings.
It's not neccessary any big downside of turning the warnings off with "uac
p 0", but it's probably best to find out where in Xerces this is happening
and see if it can easily be fixed. If it can, then other 64bit
architectures such as HP-PA might also run faster.
Regards,
Martin.
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