我编写了一个使用COM组件的控制台应用程序。当我尝试使用SOS.dll的！syncblk确定一些性能问题时，我得到的结果显示完全没有syncblk。
Index SyncBlock MonitorHeld Recursion Owning Thread Info SyncBlock Owner
1 00000000 0 0 00000000 none 0 Free
2 0019e1c0 0 0 00000000 none 00bb1644 System.Diagnostics.Eventing.EventProvider+ClassicEtw+ControlCallback
3 00000000 0 0 00000000 none 0 Free
4 00000000 0 0 00000000 none 0 Free
5 00000000 0 0 00000000 none 0 Free
6 00000000 0 0 00000000 none 0 Free
7 00000000 0 0 00000000 none 0 Free
8 00000000 0 0 00000000 none 0 Free
9 00000000 0 0 00000000 none 0 Free
10 00000000 0 0 00000000 none 0 Free
11 0019e394 0 0 00000000 none 00d2f2fc Bid+CtrlCB
12 0019e3c8 0 0 00000000 none 00c38b7c System.__ComObject
13 0019e3fc 0 0 00000000 none 00c38bbc System.__ComObject
14 00000000 0 0 00000000 none 0 Free
.........
11303 460e30a4 0 0 00000000 none 5d42530c System.__ComObject
11304 460e3070 0 0 00000000 none 5d423f64 System.__ComObject
11305 460e303c 0 0 00000000 none 5d4252fc System.__ComObject
11306 460e3008 0 0 00000000 none 5d42d370 System.__ComObject
11307 460e2fd4 0 0 00000000 none 5d4214ec System.__ComObject
11308 460e2fa0 0 0 00000000 none 5d429460 System.__ComObject
11309 460e2f6c 0 0 00000000 none 5d423f54 System.__ComObject
11310 460e2f38 0 0 00000000 none 5d4252d4 System.__ComObject
11311 460e2f04 0 0 00000000 none 5d42d2f8 System.__ComObject
11312 43cfe168 0 0 00000000 none 2c3231f0 System.__ComObject
11313 460e2ed0 0 0 00000000 none 5d4214dc System.__ComObject
11314 460e2e9c 0 0 00000000 none 5d4252c4 System.__ComObject
11315 4426b320 0 0 00000000 none 2c4ee950 System.__ComObject
11316 460e2e68 0 0 00000000 none 5d423f24 System.__ComObject
11317 460e2e34 0 0 00000000 none 5d4252b4 System.__ComObject
11318 460e2e00 0 0 00000000 none 5d42d284 System.__ComObject
11319 460e2dcc 0 0 00000000 none 5d4214ac System.__ComObject
11320 460e2d98 0 0 00000000 none 5d423dd4 System.__ComObject
11321 460e2d64 0 0 00000000 none 5d4252a4 System.__ComObject
11322 460e2d30 0 0 00000000 none 5d429384 System.__ComObject
11323 460e2cfc 0 0 00000000 none 5d42149c System.__ComObject
11324 460e2cc8 0 0 00000000 none 5d425294 System.__ComObject
11325 460e2c94 0 0 00000000 none 5d429374 System.__ComObject
11326 460e2c60 0 0 00000000 none 5d42148c System.__ComObject
11327 460e2c2c 0 0 00000000 none 5d42b29c System.__ComObject
11328 460e2bf8 0 0 00000000 none 5d425284 System.__ComObject
如您所见，所有Monitorheld列都返回0，为什么？