On Thu, 3 Dec 2009, Peter Zijlstra wrote:
What is the performance hit when the kernel is compiled with frame
pointers?
build both kernels and run your favourite workload to find out.
But generally speaking, frame pointers impose quite some performance
penalty indeed. lmbench syscall microbenchmark can give you some hint. I
expect you'll see approx. 10% performance increase for various syscalls if
you disable them, as that's what we have measured lately.
--
Jiri Kosina
SUSE Labs, Novell Inc.