my question:
1.what's meaning UNKNOWN？
2.what causes high thread wait？
3.anyone have good idea？
Instrumentation began 01:42:38.432 ended 01:48:13.322 elapsed 334.890
Thread 4 SmMonitorThread parent=1 01:42:38.432-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 12 0.002 0.000 0.000 0.000 0.0 0
Network Send 12 0.000 0.000 0.000 0.000 0
Unknown 334.887
----------------------------------------------------------------------------
Total 334.890 0.0 0
Thread 20 SessionThread parent=6 01:42:38.432-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 5 0.001 0.000 0.000 0.000 0.0 0
Network Send 5 0.000 0.000 0.000 0.000 0
Shmem Read 639361 162.687 0.000 0.000 0.044
Shmem Write 639360 2.459 0.000 0.000 0.000
Shmem Copy 639360 7.629 0.000 0.000 0.000
Thread Wait 79920 159.010 0.002 0.000 21.782
Unknown 3.101
----------------------------------------------------------------------------
Total 334.890 0.0 0
Thread 31 AgentThread parent=23 01:42:38.432-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Tape Read 79921 205.606 0.003 0.000 21.804 99509.5 20459776
Thread Wait 79921 128.653 0.002 0.000 0.044
Unknown 0.630
----------------------------------------------------------------------------
Total 334.890 61093.9 20459776
Thread 128 psSessionThread parent=5 01:42:38.432-->01:42:38.434
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.001 0.001 0.000 0.001 0.0 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 1 0.000 0.000 0.000 0.000
Thread Wait 4 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.002 0.0 0
Thread 129 SmAdminCommandThread parent=128 01:42:38.432-->01:42:38.432
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 1 0.000 0.000 0.000 0.000 0
Network Send 1 0.000 0.000 0.000 0.000 0
Unknown 0.000
----------------------------------------------------------------------------
Total 0.000
Thread 130 psSessionThread parent=5 01:44:12.125-->01:44:12.137
Session ID 68 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 18 0.009 0.001 0.000 0.004 108.0 1
Network Send 17 0.000 0.000 0.000 0.000 2
Acquire XLatch 2 0.000 0.000 0.000 0.000
Thread Wait 184 0.000 0.000 0.000 0.000
Unknown 0.002
----------------------------------------------------------------------------
Total 0.012 242.0 3
Thread 131 SmAdminCommandThread parent=130 01:44:12.131-->01:44:12.132
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.000 0.000 0.000 0.000 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 35 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.001 0.0 0
Thread 132 psSessionThread parent=5 01:44:14.534-->01:44:14.546
Session ID 69 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 18 0.008 0.000 0.000 0.003 112.7 1
Network Send 17 0.000 0.000 0.000 0.000 2
Acquire XLatch 2 0.000 0.000 0.000 0.000
Thread Wait 184 0.000 0.000 0.000 0.000
Unknown 0.002
----------------------------------------------------------------------------
Total 0.012 249.6 3
Thread 133 SmAdminCommandThread parent=132 01:44:14.541-->01:44:14.542
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.000 0.000 0.000 0.000 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 35 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.001 0.0 0
Thread 134 psSessionThread parent=5 01:44:35.828-->01:44:35.840
Session ID 70 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 18 0.008 0.000 0.000 0.003 115.0 1
Network Send 17 0.000 0.000 0.000 0.000 2
Acquire XLatch 2 0.000 0.000 0.000 0.000
Thread Wait 184 0.000 0.000 0.000 0.000
Unknown 0.002
----------------------------------------------------------------------------
Total 0.011 250.3 3
Thread 135 SmAdminCommandThread parent=134 01:44:35.834-->01:44:35.836
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.000 0.000 0.000 0.000 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 35 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.001 0.0 0
Thread 136 psSessionThread parent=5 01:48:13.314-->01:48:13.322
Session ID 72 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 16 0.004 0.000 0.000 0.000 221.9 1
Network Send 15 0.000 0.000 0.000 0.000 1
Acquire XLatch 1 0.000 0.000 0.000 0.000
Thread Wait 1 0.002 0.002 0.002 0.002
Unknown 0.001
----------------------------------------------------------------------------
Total 0.008 244.6 2
Thread 137 SmAdminCommandThread parent=136 01:48:13.320-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 7 0.001 0.000 0.000 0.000 0.0 0
Network Send 7 0.000 0.000 0.000 0.000 0
Acquire XLatch 1 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.002 442.9 1
TOTAL SERVER SUMMARY
Operation Count Tottime Avgtime Maxtime InstTput RealTput Total KB
----------------------------------------------------------------------------
Tape Read 79921 205.606 0.003 21.804 99509.5 61093.9 20459776
Network Recv 139 9.033 0.065 4.491 0.7 0.0 6
Network Send 155 0.002 0.000 0.000 5434.8 0.0 11
Shmem Read 639361 162.687 0.000 0.044
Shmem Write 639360 2.459 0.000 0.000
Shmem Copy 639360 7.629 0.000 0.000
Acquire XLatch 120 0.000 0.000 0.000
Thread Wait 160495 622.559 0.004 213.016
1.what's meaning UNKNOWN？
2.what causes high thread wait？
3.anyone have good idea？
Instrumentation began 01:42:38.432 ended 01:48:13.322 elapsed 334.890
Thread 4 SmMonitorThread parent=1 01:42:38.432-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 12 0.002 0.000 0.000 0.000 0.0 0
Network Send 12 0.000 0.000 0.000 0.000 0
Unknown 334.887
----------------------------------------------------------------------------
Total 334.890 0.0 0
Thread 20 SessionThread parent=6 01:42:38.432-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 5 0.001 0.000 0.000 0.000 0.0 0
Network Send 5 0.000 0.000 0.000 0.000 0
Shmem Read 639361 162.687 0.000 0.000 0.044
Shmem Write 639360 2.459 0.000 0.000 0.000
Shmem Copy 639360 7.629 0.000 0.000 0.000
Thread Wait 79920 159.010 0.002 0.000 21.782
Unknown 3.101
----------------------------------------------------------------------------
Total 334.890 0.0 0
Thread 31 AgentThread parent=23 01:42:38.432-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Tape Read 79921 205.606 0.003 0.000 21.804 99509.5 20459776
Thread Wait 79921 128.653 0.002 0.000 0.044
Unknown 0.630
----------------------------------------------------------------------------
Total 334.890 61093.9 20459776
Thread 128 psSessionThread parent=5 01:42:38.432-->01:42:38.434
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.001 0.001 0.000 0.001 0.0 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 1 0.000 0.000 0.000 0.000
Thread Wait 4 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.002 0.0 0
Thread 129 SmAdminCommandThread parent=128 01:42:38.432-->01:42:38.432
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 1 0.000 0.000 0.000 0.000 0
Network Send 1 0.000 0.000 0.000 0.000 0
Unknown 0.000
----------------------------------------------------------------------------
Total 0.000
Thread 130 psSessionThread parent=5 01:44:12.125-->01:44:12.137
Session ID 68 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 18 0.009 0.001 0.000 0.004 108.0 1
Network Send 17 0.000 0.000 0.000 0.000 2
Acquire XLatch 2 0.000 0.000 0.000 0.000
Thread Wait 184 0.000 0.000 0.000 0.000
Unknown 0.002
----------------------------------------------------------------------------
Total 0.012 242.0 3
Thread 131 SmAdminCommandThread parent=130 01:44:12.131-->01:44:12.132
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.000 0.000 0.000 0.000 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 35 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.001 0.0 0
Thread 132 psSessionThread parent=5 01:44:14.534-->01:44:14.546
Session ID 69 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 18 0.008 0.000 0.000 0.003 112.7 1
Network Send 17 0.000 0.000 0.000 0.000 2
Acquire XLatch 2 0.000 0.000 0.000 0.000
Thread Wait 184 0.000 0.000 0.000 0.000
Unknown 0.002
----------------------------------------------------------------------------
Total 0.012 249.6 3
Thread 133 SmAdminCommandThread parent=132 01:44:14.541-->01:44:14.542
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.000 0.000 0.000 0.000 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 35 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.001 0.0 0
Thread 134 psSessionThread parent=5 01:44:35.828-->01:44:35.840
Session ID 70 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 18 0.008 0.000 0.000 0.003 115.0 1
Network Send 17 0.000 0.000 0.000 0.000 2
Acquire XLatch 2 0.000 0.000 0.000 0.000
Thread Wait 184 0.000 0.000 0.000 0.000
Unknown 0.002
----------------------------------------------------------------------------
Total 0.011 250.3 3
Thread 135 SmAdminCommandThread parent=134 01:44:35.834-->01:44:35.836
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 2 0.000 0.000 0.000 0.000 0
Network Send 2 0.000 0.000 0.000 0.000 0
Acquire XLatch 35 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.001 0.0 0
Thread 136 psSessionThread parent=5 01:48:13.314-->01:48:13.322
Session ID 72 ADMIN (Windows)
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 16 0.004 0.000 0.000 0.000 221.9 1
Network Send 15 0.000 0.000 0.000 0.000 1
Acquire XLatch 1 0.000 0.000 0.000 0.000
Thread Wait 1 0.002 0.002 0.002 0.002
Unknown 0.001
----------------------------------------------------------------------------
Total 0.008 244.6 2
Thread 137 SmAdminCommandThread parent=136 01:48:13.320-->01:48:13.322
Operation Count Tottime Avgtime Mintime Maxtime InstTput Total KB
----------------------------------------------------------------------------
Network Recv 7 0.001 0.000 0.000 0.000 0.0 0
Network Send 7 0.000 0.000 0.000 0.000 0
Acquire XLatch 1 0.000 0.000 0.000 0.000
Unknown 0.000
----------------------------------------------------------------------------
Total 0.002 442.9 1
TOTAL SERVER SUMMARY
Operation Count Tottime Avgtime Maxtime InstTput RealTput Total KB
----------------------------------------------------------------------------
Tape Read 79921 205.606 0.003 21.804 99509.5 61093.9 20459776
Network Recv 139 9.033 0.065 4.491 0.7 0.0 6
Network Send 155 0.002 0.000 0.000 5434.8 0.0 11
Shmem Read 639361 162.687 0.000 0.044
Shmem Write 639360 2.459 0.000 0.000
Shmem Copy 639360 7.629 0.000 0.000
Acquire XLatch 120 0.000 0.000 0.000
Thread Wait 160495 622.559 0.004 213.016