On 20/10/10 15:10, Robert Haas wrote:
On Tue, Oct 19, 2010 at 8:39 PM, Hsien-Wen Chu<chu.hsien....@gmail.com> wrote:
I want to use hugepage function on Linux platform, my question is if
PostgreSQL supports hugepage in default, if not, what's the code need to be
modified?
Unfortunately, I don't think this is too simple. PostgreSQL uses sysv
shared memory, not POSIX shared memory. I don't know of a way to use
sysv shared memory with hugetlb.
According to:
http://devresources.linuxfoundation.org/dev/robustmutexes/src/fusyn.hg/Documentation/vm/hugetlbpage.txt
shmget and friends are hugetlbpage aware, so it seems it should 'just
work'. However, I have not checked...
Cheers
Mark
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