CoolThreads - CMT Tuning and Resources

SAP

SAP Configuration Notes

We recommend the following parameters in your SAP profile so that extended memory and all other buffers use ISM

es/use_shared_memory = true
ipc/sem_fast_watchdog = 0

If "es/use_shared_memory" is not set, the extended memory will be allocated on anon memory and could be on a smaller page size if not aligned.

ISM is used for buffer management and extended memory starting with SAP 640 and 700 release. Older releases use regular shared memory instead of "ISM".

Configure a sufficient number of dialogue processes and update processes to ensure enqueue length is less than 5 on average.

Multiple instances of SAP may be required to achieve scaling. On high throughput workloads we have used 4 SAP instances on an 8 core Sun Fire CoolThreads sever.

Always check SAP R/3 buffer stats to make sure there is no swapping.

Siebel

This Sun BluePrints article provides tuning and optimization knowledge and techniques for Oracle's Siebel 7.x eBusiness Application Suite on the Solaris platform. All the techniques discussed in this document are lessons learned from a series of performance tuning studies conducted under the auspices of the Siebel Platform Sizing and Performance Program (PSPP). The tests conducted under this program are based on real world scenarios derived from Oracle's Siebel customers, reflecting some of the most frequently used and critical components of the Oracle eBusiness Application Suite. Tips and best practices guidance based on the combined experience of Oracle and Sun is provided for field staff, benchmark engineers, system administrators, and customers interested in achieving optimal performance and scalability with Siebel on Sun installations.

Note: This article is available in PDF Format only.

Oracle PeopleSoft Configuration Notes

PeopleSoft 8.4 Financials and PeopleTools 8.46

For PeopleSoft 8.4 Financials and PeopleTools 8.46 on UltraSPARC T1, use the same PeopleSoft parameters used with previous UltraSPARC processors like UltraSPARC III. Here are the parameters set for each of the configuration tiers:

PeopleTools

- Disabled the PPM
- Min Handlers=9
- Max Handlers=9
- Max Clients per Handler=45
- REPLYQ=Y

Web Server

- Webserver Configuration:
Threadcount=100
Compressrespose=N

Database

Change in init.ora file:
- optimizer_mode = FIRST_ROWS
- SESSION_CACHED_CURSORS = 500

Oracle eBusiness Suite

For Oracle Apps 11i Performance Tuning

SugarCRM / MySQL Tuning

Demonstration of how SugarCRM scales on Sun's Coolthreads Server running Solaris Operating system.