On May 9, 6:16*am, Richard James <rja...@invalid.com> wrote:
> On Thu, 08 May 2008 13:06:04 -0700, Ted wrote:
> > Could you tell me what is the maximum RAM, slakware can manage, and what
> > would be the max heap that could be given to a java program? *Thx
>
> "The main danger of running on a 32 bit system with lots of highmem (more
> than 8GB) is that the kernel could end up needing to allocate more data
> than what fits in ZONE_NORMAL. This means the machine can effectively run
> out of memory, even if there were still lots of high memory free.
>
> Another issue is that the system will more aggressively reclaim kernel
> data structures like cached inodes, buffer heads and other caches that
> can help system performance.
>
> The third issue is that, on a 32 bit system, no process will be able to
> effectively use more than 3GB of memory. This means that buying more than
> 4GB of memory is only useful if none of the processes on your system need
> all of the memory.
>
> For these reasons it is recommended that if you buy a system with more
> than 4GB of memory, you should consider getting a 64 bit CPU and
> installing a 64 bit operating system. The price difference between 32 and
> 64 bit systems is practically nonexistant in 2005, and 64 bit x86-64
> systems can still run 32 bit applications, so there is no real need to
> experience the pains of highmem any more... "
>
> http://linux-mm.org/HighMemory
>
> Also read these
>
> http://www.spack.org/wiki/LinuxRamLi....org/node/2450
>
> Richard James
> --
> sig fail on line -1

Thx Ted