Dear all:

my openwrt kernel cpu loading very high at large thoughput. I want to user
kernel profile.

I read the link:http://homepages.cwi.nl/~aeb/linux/profile.html

thay say: Boot the kernel with command line option profile=2 (or some other
number instead of 2). This will cause a file /proc/profile to be created.

I want to know how to set profile=2 at openwrt kernel boot?

in addition, I compile oprofile on openwrt. the version is 0.94, it's start
and running is ok, but the opreport say:

r...@openwrt:/dev/oprofile/stats/cpu0# opreport -l
opreport error: No sample file found: try running opcontrol --dump
or specify a session containing sample files

by the way: my broadband is MIPS 71xx.

Thanks
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