Edit File: pf3.stp
#!/usr/bin/stap %( CONFIG_64BIT == "y" %? global profile%[20000], pcount %: # On a 32-bit platform, the profile array must be smaller, otherwise # its allocation will fail on module startup. global profile%[5000], 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. if (!user_mode()) try { // modname() can throw fn = "k:".modname(addr()).":".symname(addr()) } catch { fn = "k:<unknown>:".symname(addr()) } else { try { // umodname() can throw fn = "u:".umodname(uaddr()).":".usymname(uaddr()) } catch { fn = "u:<unknown>:".usymname(uaddr()) } } 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 }