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A-2
How to improve system performance for RedHat 7.2 and
RedHat 7.3
It is recommended to upgrade RedHat 7.2 to version 7.3, since there are many
improvements as well as kernel upgrade. Currently there is limitation about
multi-processor handling irq in RedHat 7.3. It is suggested to download the latest
kernel in order to improve the performance. The latest kernel 2.4.18 need patch to fix
multi-processor handle irq limitation. Please use the following steps to build the
kernel.
Download the latest kernel from http://www.kernel.org, for example:
linux-2.4.18.tar.gz .
# mv linux-2.4.18.tar.gz /usr/src
# gunzip linux-2.4.18.tar.gz (unpack the kernel)
# tar xvf linux-2.4.18.tar (extract form kernel tar file)
# patch -p0 < irq.patch (update necessary patch)
# cd linux
# make mrproper
# make xconfig
# make dep
# make clean
# make bzImage
# cp /usr/src/linux/arch/i386/boot/bzImage /boot/vmlinuz-24188irqbal
# make modules
# make modules_install
# mkdinitrd /boot/initrd.2.4.18.img 2.4.18
# cp /usr/src/linux/System.map /boot/System.map-2.4.18-irqbal
# cd /boot
# ln -s System.map-2.4.18-irqbal System.map
# add following entries to /etc/lilo.conf
image=/boot/vmlinuz-24188irqbal
label=lin24188irqbal
initrd=/boot/initrd-2.4.18.img
read-only
root=/dev/hda2
# lilo
# reboot
SI-2P+
Appendix A
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