Download PDF (1.3 MB) - IBM Redbooks

► Disable PMI.
► Set HTTP maxPersistentRequests to -1.
Set GC policy to -Xgcpolicy:gencon (see Table 5-1 and Table 5-2 for nursery setting
-Xmn).
► Use remote DB2 databases (connection type 4) for the SIB System, BPCDB, and SIB
BPEDB.
Table 5-1 lists Business Process Manager server-related settings to modify from their default
value when the Business Process Manager server is deployed on AIX.
Table 5-1 Three-tiered application cluster settings for AIX
Setting
Value
Java heap Megabytes 1536
Java nursery Megabytes -Xmn 768
Default thread pool max 100
BPEDB Data source connection pool max 300
BPEDB Data source WebSphere Application Server data source properties
Statement cache size
300
BPC messaging engine data source connection pool max 50
SCA SYSTEM messaging engine data source connection pool max 50
BPM Common Data source connection pool max 500
J2C activation specifications SOABenchBPELMod2_AS Custom properties
maxConcurrency, maxBatchSize
Resources Asynchronous Beans Work Managers BPENavigationWorkManager
Work request queue size, max threads, growable
50
400,
50,
no
Application Cluster Business Flow Manager Message pool size, Intertransaction cache size 5000,
400
WebContainer thread pool min, max 100, 100
com.ibm.websphere.webservices.http.maxConnection 50
Table 5-2 lists Business Process Manager server-related settings to modify from their default
value when Business Process Manager server is deployed on Windows and Linux on Intel
systems.
Table 5-2 Three-tiered web service and remote DB2 tuning variations for Windows and Linux on Intel systems
Tuning variations Microflow: Number of cores Macroflow: Number of cores
1 2 4 1 4
Java heap Megabytes 1280 1280 1280 1280 1280
Java nursery Megabytes -Xmn 640 640 640 768 768
Web container thread pool max 100 150 150 100 300
Default thread pool max 100 200 200 100 200
Chapter 5. Initial configuration settings 99