High OLTP workloads may benefit from running on several
processors, even if the processors are not entirely used.
The I/O subsystem under Linux profits from having several CPUs
available on the system.
Test environment
IBM eServer zSeries 900 (2064-216)
IBM TotalStorage Enterprise Storage Server 2105-800
LPAR with 1-12 CPUs, 16GB memory
Novell/SUSE SLES 8 + SP3 for IBM zSeries (64-bit), updated
kernel 2.4.21-228
IBM DB2 Universal Database ESE v8.2 (64-bit)
Benchmark DB2 OLTP
Database data Logical Volume (LV): 8 CHPIDs, 8 host
adapters, 25 x 10GB FCP/SCSI disks in 8 ranks, ext2 filesystem
