I'm looking for some real information about the effect of systemtap on performance. I know that static kernel probes are documented somewhere on their website (with stats), but what about userspace probes? I saw this post on their mailing list (http://sourceware.org/ml/systemtap/2009-q1/msg00518.html) which points at a possibility of si...
I'd like to test whether particular socket options have been set on an existing socket. Ie, pretty much everything you can see in: #!/usr/bin/env python '''See possible TCP socket options''' import socket sockettypelist = [x for x in dir(socket) if x.startswith('SO_')] sockettypelist.sort() for sockettype in sockettypelist: print...
How can I know if the standard kernel provided in my linux flavour has got DEBUG KERNEL ENABLED flags selected or not ?? I think DEBUG option should be enabled inorder to use tools like kprobe, systemtap ?? ...