Preferpoll Option

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One or more of the options discussed on this page are restricted. Restricted options are not intended for general use and if set may cause severe operational problems. If you believe you need to set a restricted option you should first check with Oracle support.

Introduced in release: 7.0.5

Updated in release: 8.0.1


To improve performance, the IMAP and MMP servers use Solaris Event Completion Ports on Solaris instead of the poll system call starting with the Messaging Server 7.0.5 release. Since the Messaging Server 8.0.1 release, the servers use epoll on Linux instead of the poll system call. Setting the preferpoll option (available at base and MMP level) to 1 will revert to use of the standard Posix poll API instead. When preferpoll is set to 1, then the polldelay option also applies.


The default value is: 0

Use with base

See also:

Use with the MMP

See also:


See also: