64bit sysv ipc code

[Vivek Khera]

On Jul 24, 2007, at 10:41 AM, Daniel Gish wrote:

> The system has 8 gigs of memory.  We need to set a high SHMMAXPGS  
> for Postgresql, and we're unable to set it above 2 gigs.  This  
> message back in December gives more details about the problem, and  
> mentions that "someone needs to go over the sysv ipc code and make  
> it 64-bit capable":

i run with 2Gb of SHM on boxes with 8Gb and 20Gb of RAM respectively,  
and it works just fine.  Much of the database ends up in the I/O  
cache of the system.

That said, I'd like to try higher SHM values too, especially on the  
20Gb box :-)