diff -r a1648e297acd Doc/library/profile.rst
--- a/Doc/library/profile.rst	Sun Oct 10 22:36:04 2010 +0200
+++ b/Doc/library/profile.rst	Mon Oct 11 22:05:11 2010 +0200
@@ -11,27 +11,8 @@
 
 .. index:: single: InfoSeek Corporation
 
-Copyright © 1994, by InfoSeek Corporation, all rights reserved.
-
-Written by James Roskind. [#]_
-
-Permission to use, copy, modify, and distribute this Python software and its
-associated documentation for any purpose (subject to the restriction in the
-following sentence) without fee is hereby granted, provided that the above
-copyright notice appears in all copies, and that both that copyright notice and
-this permission notice appear in supporting documentation, and that the name of
-InfoSeek not be used in advertising or publicity pertaining to distribution of
-the software without specific, written prior permission.  This permission is
-explicitly restricted to the copying and modification of the software to remain
-in Python, compiled Python, or other languages (such as C) wherein the modified
-or derived code is exclusively imported into a Python module.
-
-INFOSEEK CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
-INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT
-SHALL INFOSEEK CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
-DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
-OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+This description of the profile module is Copyright © 1994, by InfoSeek
+Corporation, all rights reserved.  Full copyright message below
 
 .. _profiler-introduction:
 
@@ -70,6 +51,14 @@
 :mod:`cProfile` is really a compatibility layer on top of the internal
 :mod:`_lsprof` module.
 
+.. note::
+
+   The profiler modules are designed to provide an execution profile for a given
+   program, not for benchmarking purposes (for that, there is :mod:`timeit` for
+   resonable accurate results). This is particularly true when trying to
+   benchmark Python code against C code: the profilers introduce overhead for
+   Python code, but not for C-level functions, and so the C code would seem
+   faster than any Python one.
 
 .. _profile-instant:
 
@@ -608,6 +597,31 @@
    best results with a custom timer, it might be necessary to hard-code it in the C
    source of the internal :mod:`_lsprof` module.
 
+Copyright and License Notices
+=============================
+
+Copyright © 1994, by InfoSeek Corporation, all rights reserved.
+
+Written by James Roskind. [#]_
+
+Permission to use, copy, modify, and distribute this Python software and its
+associated documentation for any purpose (subject to the restriction in the
+following sentence) without fee is hereby granted, provided that the above
+copyright notice appears in all copies, and that both that copyright notice and
+this permission notice appear in supporting documentation, and that the name of
+InfoSeek not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission.  This permission is
+explicitly restricted to the copying and modification of the software to remain
+in Python, compiled Python, or other languages (such as C) wherein the modified
+or derived code is exclusively imported into a Python module.
+
+INFOSEEK CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT
+SHALL INFOSEEK CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
+DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 .. rubric:: Footnotes
 
 .. [#] Updated and converted to LaTeX by Guido van Rossum. Further updated by Armin