Skip Headers
Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-04
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Previous
Go to next page
Next
PDF · Mobi · ePub

DBA_HIST_PROCESS_MEM_SUMMARY

DBA_HIST_PROCESS_MEM_SUMMARY displays historical information about dynamic PGA memory usage by named component categories for each process.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
CATEGORY VARCHAR2(15) NOT NULL Category name. Categories include "SQL", "PL/SQL", "OLAP" and "JAVA". Special categories are "Freeable" and "Other". Freeable memory has been allocated to the process by the operating system, but has not been allocated to a category. "Other" memory has been allocated to a category, but not to one of the named categories
NUM_PROCESSES NUMBER   Number of processes
NON_ZERO_ALLOCS NUMBER   Number of processes with non-zero allocations
USED_TOTAL NUMBER   Bytes of PGA memory used by the process for the category
ALLOCATED_TOTAL NUMBER   Total number of bytes of PGA memory allocated by the process for the category.
ALLOCATED_AVG NUMBER   Average number of bytes of PGA memory allocated by the process for the category
ALLOCATED_STDDEV NUMBER   Standard deviation of the number of bytes of PGA memory allocated by the process for the category
ALLOCATED_MAX NUMBER   Maximum bytes of PGA memory ever allocated by the process for the category
MAX_ALLOCATED_MAX NUMBER   Maximum bytes of PGA memory that can be allocated by the process for the category