< unclassified>有什么作用?在windbg中的均值！地址输出 [英] what does <unclassified> mean in windbg !address output
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问题描述
示例:
0:074> !address -summary
--- Usage Summary ---------------- RgnCount ----------- Total Size -------- %ofBusy %ofTotal
Free 90919 7ec`34659000 ( 7.923 Tb) 99.03%
<unclassified> 95426 12`3c3e9000 ( 72.941 Gb) 92.12% 0.89%
Heap 744 1`7ee50000 ( 5.983 Gb) 7.56% 0.07%
Image 4303 0`0f890000 ( 248.563 Mb) 0.31% 0.00%
Stack 225 0`00de9000 ( 13.910 Mb) 0.02% 0.00%
TEB 75 0`00096000 ( 600.000 kb) 0.00% 0.00%
ActivationContextData 28 0`00025000 ( 148.000 kb) 0.00% 0.00%
NlsTables 1 0`00023000 ( 140.000 kb) 0.00% 0.00%
CsrSharedMemory 1 0`00006000 ( 24.000 kb) 0.00% 0.00%
PEB 1 0`00001000 ( 4.000 kb) 0.00% 0.00%
推荐答案
<unclassified>用于无法进一步追溯到其他内存管理器的分配，因此从WinDbg的角度通过VirtualAlloc()进行分配.在较新版本的WinDbg中，这称为<unknown>.
<unclassified> is for allocations that are not further traceable to other memory managers and thus is allocated via VirtualAlloc() from WinDbg's point of view. In newer versions of WinDbg, this is called <unknown>.
以这种方式对内存进行分类有不同的原因:
There are different reasons for memory classified that way:
- direct calls to
VirtualAlloc()of course - allocations via the Windows Heap Manager that are larger than 512 kb (see the statement by Sasha Goldshtein).
- allocations of the .NET runtime (which has its own heaps that are unknown to WinDbg until you use the special SOS extension)
- some versions of MSXML
- potential other memory managers, e.g. the heap manager from Java or Python (just a guess, I never verified)
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