Lackey
This manual was last updated on 2002-10-03
njn25@cam.ac.uk
Copyright © 2002-2004 Nicholas Nethercote
Lackey is licensed under the GNU General Public License,
version 2
Lackey is an example Valgrind tool that does some very basic program
measurement.
1 Lackey
Lackey is a simple Valgrind tool that does some basic program measurement.
It adds quite a lot of simple instrumentation to the program's code. It is
primarily intended to be of use as an example tool.
It measures three things:
- The number of calls to
_dl_runtime_resolve()
, the function
in glibc's dynamic linker that resolves function lookups into shared
objects.
- The number of UCode instructions (UCode is Valgrind's RISC-like
intermediate language), x86 instructions, and basic blocks executed by the
program, and some ratios between the three counts.
- The number of conditional branches encountered and the proportion of those
taken.