Re: [Numpy-discussion] Sort performance with structured array

2013-04-07 Thread Charles R Harris
On Sun, Apr 7, 2013 at 5:56 PM, Charles R Harris wrote: > > > On Sun, Apr 7, 2013 at 5:23 PM, Tom Aldcroft < > aldcr...@head.cfa.harvard.edu> wrote: > >> I'm seeing about a factor of 50 difference in performance between >> sorting a random integer array versus sorting that same array viewed >> as

Re: [Numpy-discussion] Sort performance with structured array

2013-04-07 Thread Charles R Harris
On Sun, Apr 7, 2013 at 5:23 PM, Tom Aldcroft wrote: > I'm seeing about a factor of 50 difference in performance between > sorting a random integer array versus sorting that same array viewed > as a structured array. Am I doing anything wrong here? > > In [2]: x = np.random.randint(1, size=100

[Numpy-discussion] Sort performance with structured array

2013-04-07 Thread Tom Aldcroft
I'm seeing about a factor of 50 difference in performance between sorting a random integer array versus sorting that same array viewed as a structured array. Am I doing anything wrong here? In [2]: x = np.random.randint(1, size=1) In [3]: xarr = x.view(dtype=[('a', np.int)]) In [4]: tim