March 2004
Intermediate to advanced
440 pages
11h 46m
English
book
DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
by Whei-Jen Chen, Peter Z He, Kang Yong Ying, Andreas Paulsen, Sunminder S Saini
Content preview from DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
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56 DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
Figure 3-5 How the database manager uses the memory
3.2.3 Storage model
Figure 3-6 illustrates how the data is physically stored on disks.
Utility heap
(util_heap_sz)
Database manager shared memory (Including FCM)
Database global memory
Backup buffer
Restore buffer
(restbuisz)
Package cache
(pckcachesz)
(app_ctl_heap_sz)
Application global memory
Application heap
(applheapsz)
Agent private memory
Sort heap
(sortheap)
Agent/Application
shared memory
Application support
layer heap (aslheapsz)
Client I/O block
(rqrioblk) (local)
Buffer pools
Extended memory cache
Lock list (locklist)
Database heap
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