Re: [HACKERS] mmap and MAP_ANON - Mailing list pgsql-hackers

From dj@pelf.harvard.edu (Diab Jerius)
Subject Re: [HACKERS] mmap and MAP_ANON
Date
Msg-id 199805111339.JAA10747@pelf
Whole thread Raw
In response to mmap and MAP_ANON  (Bruce Momjian <maillist@candle.pha.pa.us>)
List pgsql-hackers
I can't find MAP_ANON on Solaris 2.5.1 or 2.5.6.  The man
page claims the following options are avaliable:

          MAP_SHARED               Share changes.
          MAP_PRIVATE              Changes are private.
          MAP_FIXED                Interpret addr exactly.
          MAP_NORESERVE            Don't reserve swap space.


If you'd like, I can send along the whole man page.

---------  Received message begins Here  ---------

>
> Would people tell me what platforms do NOT support the MAP_ANON flag to
> the mmap() system call?  You should find it in the mmap() manual page.
>
> *BSD has it, but I am not sure of the others.  I am researching cache
> size issues and the use of mmap vs. SYSV shared memory.
>
> --
> Bruce Momjian                          |  830 Blythe Avenue
> maillist@candle.pha.pa.us              |  Drexel Hill, Pennsylvania 19026
>   +  If your life is a hard drive,     |  (610) 353-9879(w)
>   +  Christ can be your backup.        |  (610) 853-3000(h)
>
>

-------------
Diab Jerius                       Harvard-Smithsonian Center for Astrophysics
                                  60 Garden St, MS 70, Cambridge MA 02138 USA
djerius@cfa.harvard.edu           vox: 617 496 7575         fax: 617 495 7356

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