226 IBM ^ zSeries 990 Technical Guide
For a complete description of these LSPR workloads, refer to Large Systems Performance
Reference, SC28-1187.
LSPR workloads for z990
The z990 servers introduce many different innovations, such as multi-book design, LPAR
Mode only, up to 32 CPs/IFLs/ICFs/zAAPs, and up to 30 logical partitions. Also, some new
workload types are now required to better evaluate processor capacity, as the production
environments are changing, including new e-business applications.
Those factors contributed to the following LSPR changes for the z990 processors:
Newer version of operating systems (z/OS V1 R4 and z/VM V4 R3)
Some workloads dropped; others changed or added
New VM workloads run as Linux virtual machines
New Linux native workloads
All ITRs now assume LPAR mode
Most workload ITRs now assume 64-bit addressing
VSE/ESA workloads have been dropped
The LSPR workloads for z990 are listed in Table 8-3. The measured ITRs represent LPAR
Mode.
Table 8-3 LSPR workloads for z990 (LPAR Mode)
The following are descriptions of the new workloads:
CB-L (Commercial Batch Long job steps - CPU-Intensive; formerly CBW2)
The CB-L workload is a commercial batch jobstream reflective of fairly heavy CPU
processing. The jobs are more resource-intensive than jobs in the CB-S workload, use
more current software, and exploit ESA features. The work done by these jobs includes
various combinations of C, COBOL, FORTRAN, and PL/I compile, link-edit, and execute
steps. Sorting, DFSMS, VSAM and DB2 utilities, SQL processing, SLR processing,
GDDM® graphics, and FORTRAN engineering/scientific subroutine library processing are
also included. This workload is heavily DB2-oriented, with about half of the processing
time performing DB2-related functions.
Operating system Workload type Workload description
z/OS CB-L CPU-intensive commercial batch (formerly CBW2).
CB-S I/O-intensive commercial batch (formerly CB84).
WASDB WebSphere Application Server+DB2 (Trade2-EJB).
OLTP-W Web-enabled OLTP. CICS/DB2 with WebSphere
Application Server front end.
OLTP-T Traditional OLTP (IMS).
z/VM CMS1 Interactive CMS users.
WASDB/LVm Linux guests with WebSphere app+DB (Trade2-EJB).
Linux WASDB/L WebSphere app+DB (Trade2-EJB).
EAS-AS/L Enterprise Application Solution Application Serving under
Linux.
