有人能解释一下CLR的"HighFrequencyHeap"吗?
!eeheap
的部分输出。--------------------------------------
Domain 1: 006428c0
LowFrequencyHeap: 00340000(2000:2000) Size: 0x2000 (8192) bytes.
HighFrequencyHeap: 00342000(8000:2000) Size: 0x2000 (8192) bytes.
StubHeap: Size: 0x0 (0) bytes.
Virtual Call Stub Heap:
IndcellHeap: Size: 0x0 (0) bytes.
LookupHeap: Size: 0x0 (0) bytes.
ResolveHeap: Size: 0x0 (0) bytes.
DispatchHeap: Size: 0x0 (0) bytes.
CacheEntryHeap: Size: 0x0 (0) bytes.
Total size: Size: 0x4000 (16384) bytes.
--------------------------------------
Jit code heap:
LoaderCodeHeap: 004e0000(10000:1000) Size: 0x1000 (4096) bytes.
Total size: Size: 0x1000 (4096) bytes.
--------------------------------------
Module Thunk heaps:
Module 5ef21000: Size: 0x0 (0) bytes.
Module 00342e9c: Size: 0x0 (0) bytes.
Total size: Size: 0x0 (0) bytes.
--------------------------------------
Module Lookup Table heaps:
Module 5ef21000: Size: 0x0 (0) bytes.
Module 00342e9c: Size: 0x0 (0) bytes.
Total size: Size: 0x0 (0) bytes.
--------------------------------------
Total LoaderHeap size: Size: 0x13000 (77824) bytes.
=======================================
Number of GC Heaps: 1
generation 0 starts at 0x02521018
generation 1 starts at 0x0252100c
generation 2 starts at 0x02521000
ephemeral segment allocation context: none
segment begin allocated size
02520000 02521000 0252e010 0xd010(53264)
Large object heap starts at 0x03521000
segment begin allocated size
03520000 03521000 03523250 0x2250(8784)
Total Size: Size: 0xf260 (62048) bytes.
------------------------------
GC Heap Size: Size: 0xf260 (62048) bytes.
Program
实例的!dumpobject
输出。0:000> !dumpheap -type Program
Address MT Size
0252b630 00343858 12
total 0 objects
Statistics:
MT Count TotalSize Class Name
00343858 1 12 TestBench2010.Program
Total 1 objects
0:000> !do 0252b630
Name: TestBench2010.Program
MethodTable: 00343858
EEClass: 0034154c
Size: 12(0xc) bytes
File: C:\workspaces\TestBench2010\TestBench2010\bin\Debug\TestBench2010.exe
Fields:
MT Field Offset Type VT Attr Value Name
00343858 4000001 4 ...Bench2010.Program 0 static 0252b630 p
0:000> !dumpheap -type Program
Address MT Size
0252b630 00343858 12
total 0 objects
Statistics:
MT Count TotalSize Class Name
00343858 1 12 TestBench2010.Program
Total 1 objects
0:000> !do 0252b630
Name: TestBench2010.Program
MethodTable: 00343858
EEClass: 0034154c
Size: 12(0xc) bytes
File: C:\workspaces\TestBench2010\TestBench2010\bin\Debug\TestBench2010.exe
Fields:
MT Field Offset Type VT Attr Value Name
00343858 4000001 4 ...Bench2010.Program 0 static 0252b630 p
请注意类型Program
中静态引用p
的地址。它指向垃圾回收堆中的一个地址。另外,请注意方法表的地址。它指向高频堆中的一个地址。