v$sgainfo:
NAME BYTES RESIZEABLE
1 Fixed SGA Size 2104472 No
2 Redo Buffers 48226304 No
3 Buffer Cache Size 15804137472 Yes
4 Shared Pool Size 3221225472 Yes
5 Large Pool Size 134217728 Yes
6 Java Pool Size 67108864 Yes
7 Streams Pool Size 1258291200 Yes
8 Granule Size 16777216 No
9 Maximum SGA Size 20535312384 No
10 Startup overhead in Shared Pool 805306368 No
11 Free SGA Memory Available 0
v$sgastat:free memory+kolccst obj=1303443448>1258291200 可以看到v$sgastat查到的空余内存加已使用的部分大于sgainfo的部分,并且kolccst obj还处在持续的增长中,对此非常不解,请刘大看看:
POOL NAME BYTES
1 streams pool free memory 1186863968
2 streams pool kolccst obj 116579480