NumTcbTablePartitions

  • Article

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Data type Range Default value

REG_DWORD

0x1–0xFFFF (TCB table partitions)

0x1

Description

Specifies the number of partitions in the Transport Control Block table.

Partitioning the Transport Control Block table minimizes contention for table access. This is especially useful on multiprocessor systems.

Note

  • This entry does not exist in the registry by default. You can add it by using the registry editor Regedit.exe.

Caution

  • Do not change the value of this entry before carefully studying the effect of different values in a test environment. When testing, do not enter a value greater than two times the number of processors on the computer.