 | | | hugemem kernel | hugemem kernel 2006-03-27 - By Ed Greshko
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Stephen Mah wrote:
> Can someone explain to me the memory limitation for RHEL3's kernel and
> the difference between the hugemem kernel?
>
Would reading the release notes be of value?
Red Hat Enterprise Linux 3 includes a new kernel known as the hugemem
kernel. This kernel supports a 4GB per process user space (versus 3GB
for the other kernels), and a 4GB direct kernel space. Using this kernel
allows Red Hat Enterprise Linux to run on systems with up to 64GB of
main memory. The hugemem kernel is required in order to use all the
memory in system configurations containing more than 16GB of memory. The
hugemem kernel can also benefit configurations running with less memory
(if running an application that could benefit from the larger per
process user space, for example.)
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