Quote:>we are in progress to migrate from HPUX 10.20 to HPUX 11i and from Ingres
>II 2.0 to Ingres II 2.5.
>Now the question arised, whether Ingres II 2.5 does take use of the 64 bit
>architecture of HPUX.
>Furthermore managment asks, whether we got a performance degree, if Ingres
>2.5 is not
>using all the features of the 64 bit architecture.
Ingres 2.5 is still a 32-bit program in the sense that it uses a 32-bit
memory architecture and 32-bit pointers. It uses the large file API for
file accessing, though, so it is not restricted by the 32 bit limit for
file sizes.
Yes, you still get a performance increase (and quite a significant one)
going from 2.0 to 2.5. I don't have personal experience of 11i but I
imagine that it runs at least as well as 10.20 and probably a bit better.
Realize that larger is not always better (not even for Americans!).
Unless you are going to do something significant with your 64-bit address
space, like cache entire tables, a 64-bit program can actually be larger
and run slower than the 32-bit version of the same program. You have more
bits to push around, and the caches are polluted with useless extra bits.
Quote:>Does anyone have experience with HPUX 11i and OS threads?
>Do they work fine now? Or is it still better to work with internal threads?
That one I don't have an answer to.
--
K/B Computer Associates www.kbcomputer.com
Ingres, Unix, VMS Consulting and Training
by