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According to otn whitepaper:
http://otn.oracle.com/tech/linux/pdf...h-WP-Final.PDF
We can setup large pages for linux, to enhance performance for system with larger memory.
But when i try to implement it, i face difficulty.
This is my lilo.conf file:
prompt
timeout=50
default=linux
boot=/dev/sda
map=/boot/map
install=/boot/boot.b
message=/boot/message
linear
bigpages=2MB
image=/boot/vmlinuz-2.4.9-e.3smp
label=linux
initrd=/boot/initrd-2.4.9-e.3smp.img
read-only
root=/dev/sda2
append="CONFIG_WATCHDOG_NOWAYOUT=Y"
image=/boot/vmlinuz-2.4.9-e.3
label=linux-up
initrd=/boot/initrd-2.4.9-e.3.img
read-only
root=/dev/sda2
when i type
#lilo
it gives out error message:
[root@rac1 etc]# lilo
Syntax error near line 9 in file /etc/lilo.conf
Does someone have experience on this topic?
www.cnoug.org
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just curious, dont you have to recompile kernel or loaded it as a kernel module?
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Originally posted by pando
just curious, dont you have to recompile kernel or loaded it as a kernel module?
According to that article, and another whitepaper
http://otn.oracle.com/tech/linux/pdf...2_accepted.pdf
We do not need to recompile the kernel.
Now i tried this:
[oracle@rac1 dbs]$ cat /etc/lilo.conf
prompt
timeout=50
default=linux
boot=/dev/sda
map=/boot/map
install=/boot/boot.b
message=/boot/message
linear
append="bigpages=2MB"
image=/boot/vmlinuz-2.4.9-e.3smp
label=linux
initrd=/boot/initrd-2.4.9-e.3smp.img
read-only
root=/dev/sda2
append="CONFIG_WATCHDOG_NOWAYOUT=Y"
image=/boot/vmlinuz-2.4.9-e.3
label=linux-up
initrd=/boot/initrd-2.4.9-e.3.img
read-only
root=/dev/sda2
and run lilo, this time linux does not give out error message, but this is not the way oracle said, so i am not sure whether this is right, and not able to verify if bigpages are really enabled.
Is there someone have this experience? Or have the interest to research it with me?
www.cnoug.org
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