In Red Hat Enterprise Linux 2.1 I can use bigpages bootup parameter to preallocate a large chunk of memory to be used solely for shared memory. How can I achieve the same goal in Red Hat Enterprise Linux 3?
Updated -
Red Hat Enterprise Linux 3 has replaced bigpages with the hugetlb feature. hugetlb can be set two ways, either through GRUB or LILO's configuration files or dynamically through /etc/sysctl.conf or /proc/sys/vm/hugetlb_pool files.
GRUB or LILO
For /etc/grub.conf:
kernel /vmlinuz-2.4.21-27.0.2.ELsmp ro root=LABEL=/ hugepages=x...Subscriber exclusive content
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