Horton

Re: PostgreSQL and HugePage

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Hsien-Wen Chu <chu.hsien.wen@gmail.com>
Cc: pgsql-hackers@postgresql.org, Robert Haas <robertmhaas@gmail.com>, daveg <daveg@sonic.net>, Mark Kirkwood <mark.kirkwood@catalyst.net.nz>
Date: 2010-10-24T16:29:40Z
Lists: pgsql-hackers 
Hsien-Wen Chu <chu.hsien.wen@gmail.com> writes:
> as my known, FreeBSD implements this feature called superpage, it's similar
> with Solaris, so is it enabled in default? or any default parameter need to
> be set?

The Solaris-specific code is just that if SHM_SHARE_MMU is defined (by
<sys/ipc.h>, I think) we include it in the flags parameter for shmat(2).
If FreeBSD does it the same way as Solaris then that should work.

			regards, tom lane