[Python-Dev] Comparison speed (original) (raw)

Tim Peters tim.one@home.com
Sun, 20 May 2001 17:13:04 -0400

[Martin v. Loewis, on pointer-equality tests in string_compare()]

I've done some measurements here, too, again taking your example ... for i in indices: "ab" < "ab" ... This is the case where testing for identity helps. Running it without identity test takes 0.74s, running it with identity test takes 0.68s.

This stuff all ties together. A pointer-equality test in string_compare() is guaranteed to lose every time string_compare() gets called from lookdict_string(). Let's lose string_compare() entirely (in favor of a self-contained-- apart from memcmp() --string_richcompare).