<br><br><div class="gmail_quote">On Fri, Apr 3, 2009 at 00:07, Raymond Hettinger <span dir="ltr"><<a href="mailto:python@rcn.com">python@rcn.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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It seems weird to me that Collin's group can be working<br>
so hard just to get a percent or two improvement in specific cases for pickling while python-dev is readily entertaining a patch that slows down the entire language. </blockquote><div><br>Collin's group has unfortunately seen that you cannot know the actual impact of a change until you measure it. GCC performance, for instance, is extremely unpredictable, and I can easily see a change like this proving to have zero impact -- or even positive impact -- on most platforms because, say, it warms the cache for the common case. I doubt it will, but you can't *know* until you measure it.<br>
</div></div><br>-- <br>Thomas Wouters <<a href="mailto:thomas@python.org">thomas@python.org</a>><br><br>Hi! I'm a .signature virus! copy me into your .signature file to help me spread!<br>