#!/usr/bin/stap global profile%[20000], pcount probe timer.profile { pcount <<< 1 # NB: we resolve to a function name here (rather than recording only # the PC), because during a later pc->name lookup, the process context # may be different. fn = user_mode() ? ("u:".umodname(uaddr()).":".usymname(uaddr())) : ("k:".modname(addr()).":".symname(addr())); profile[fn] <<< 1 } probe timer.ms(5000) { printf ("\n--- %d samples recorded:\n", @count(pcount)) foreach (f in profile- limit 20) { printf ("%-30s\t%6d\n", f, @count(profile[f])) } delete profile delete pcount }