Upgrading from 32bit to 64 bit OS on 2950

[Matthew Geier]

McDougall, Marshall (FSH) wrote:
>
> This all precipitated when we started migrating our Sybase ASE 12x off
> of 2650's running ES3 and putting them on 2950's with ES4.  We went
> from:
> 2650 with 2x3.2GHz cpu, 4GB ram, 5x146GB U320 in RAID5 and ES3   
>  to
> 2950 with 2x3GHz Xeon 5160's, 8GB ram, 6x146GB SAS drives in RAID 10 and
> ES4.
>
> Our performance benchmarks show a significant slowdown on the 2950's
> compared to 2550's on Sybase inserts, updates, and deletes.
>   

 If the Sybase engine is also compiled for 64bits, it may be able to 
make use of the larger address space available to a 64bit process and 
push that 8Gb of ram just that little bit harder.