Large print server High CPU usage - Windows 2016

[Juan Barles]

Hi!

I´m having problems with CPU use on migrated print server from 2008 R2 to 2016, with no print jobs running

Driver Lexmark UDP V2.14 or V2.14.1 for all 1100 printers

spoolsv.exe process has multiple threads as example.

TID: 1980 CPU: 30.50 Cycles Delta: 871.870.762 Spooler ntdll.dll!RtlReleaseSRWLockExclusive+0x1370


Stack data

ntoskrnl.exe!KeSynchronizeExecution+0x3f26
ntoskrnl.exe!KeWaitForMultipleObjects+0x109c
ntoskrnl.exe!KeWaitForMultipleObjects+0xb3f
ntoskrnl.exe!KeWaitForSingleObject+0x377
ntoskrnl.exe!KeUnstackDetachProcess+0x2230
ntoskrnl.exe!ObDereferenceObjectDeferDelete+0x28a
ntoskrnl.exe!KeWaitForMultipleObjects+0x1283
ntoskrnl.exe!KeWaitForMultipleObjects+0xb3f
ntoskrnl.exe!KeGetProcessorIndexFromNumber+0x678
ntoskrnl.exe!CcUnpinData+0x66
ntoskrnl.exe!setjmpex+0x3ac3
ntdll.dll!NtWaitForAlertByThreadId+0x14
ntdll.dll!RtlpUnWaitCriticalSection+0x597
ntdll.dll!RtlpUnWaitCriticalSection+0x49e
ntdll.dll!RtlpUnWaitCriticalSection+0x32f
ntdll.dll!RtlEnterCriticalSection+0x114
ntdll.dll!RtlEnterCriticalSection+0x40
tcpmon.dll!CPortABC::Read+0xf6f3
tcpmon.dll!CPortABC::Read+0x13aeb
tcpmon.dll!CPortABC::Read+0x1b0f0
tcpmon.dll!CPortABC::Read+0x10988
ntdll.dll!RtlDeregisterWaitEx+0x994
ntdll.dll!RtlReleaseSRWLockExclusive+0x1822
KERNEL32.DLL!BaseThreadInitThunk+0x14
ntdll.dll!RtlUserThreadStart+0x21


Thanks!


Juan Barles - SECT IT Global Services

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