> I get: > > juststore 0.93 > justtups 0.58 > storetups 7.61 > > list.append is out of the picture here. Creating a million tuples > goes fast so long as they're recycled, and storing a million things > goes fast, but storing a million distinct tuples takes very much > longer. It's a Mystery to me so far. How does it act on Linux? Very reasonable with Python 2.2: juststore 0.95 justtups 0.82 storetups 1.61 But with Python 2.3 it does just about as poorly as you saw on Windows: juststore 0.91 justtups 0.82 storetups 9.40 Could it be that pymalloc somehow slows things down here? The 2.3 tupleobject.c is nearly unchanged from 2.2, so that can't be it. If I double the array size, the 2.3 storetups time almost quadruples: juststore 1.82 justtups 1.62 storetups 34.11 While with 2.2 it's nicely linear: juststore 1.91 justtups 1.63 storetups 3.20 Bizarre, but I know you like a challenge. :-) --Guido van Rossum (home page: http://www.python.org/~guido/)
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