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✏️ sortperf.pyo
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� z fc @ s� d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z e j � Z d � Z d � Z d � Z d � Z d � Z e d k r� e � n d S( s_ Sort performance test. See main() for command line syntax. See tabulate() for output format. i����Nc C sl t j j t d | � } y t | d � } Wn� t k r� t j } g t | � D] } | � ^ qR } yl z3 t | d � } t j | | � | j � d } Wd | r� y t j | � Wq� t j k r� q� Xn XWqht k r� } d G| Gd G| GHqhXnk Xt j | � } | j � xN t d � D]@ } t j | � } | | } | | 4| j � | j | � ~ q$W| S( s+ Return a list of n random floats in [0, 1).s rr%06dt rbt wbNs can't writet :i ( t ost patht joint tdt opent IOErrort randomt xranget marshalt dumpt closet Nonet unlinkt errort loadt ranget randranget reverset extend( t nt fnt fpt rt it resultt msgt temp( ( s% /usr/lib64/python2.7/test/sortperf.pyt randfloats s: " c C s t j j � d S( N( t syst stdoutt flush( ( ( s% /usr/lib64/python2.7/test/sortperf.pyR! 8 s c C s9 t j � } | j � t j � } d | | Gt � d S( Ns %6.2f( t timet clockt sortR! ( t Lt t0t t1( ( s% /usr/lib64/python2.7/test/sortperf.pyt doit; s c C s; t g d D] } | d ^ q � } d d t | � } | d | GHx�| D]�} d | >} t | � } d | | f Gt � t | � | j � t | � t | � xO t d � D]A } t j | � } t j | � } | | | | | | <| | <q� Wt | � | d k r8g t d � D] } t j � ^ q| d )n t | � x1 t | d � D] } t j � | t j | � <qSWt | � | d k r�| d 3| | d } t d � | � } n t | � ~ t t d g | � } t | � ~ | d } t | d d d � } | j t | � � t t | � } t | � HqK Wd S( s: Tabulate sort speed for lists of various sizes. The sizes are 2**i for i in r (the argument, a list). The output displays i, 2**i, and the time to sort arrays of 2**i floating point numbers with the following properties: *sort: random data \sort: descending data /sort: ascending data 3sort: ascending, then 3 random exchanges +sort: ascending, then 10 random at the end %sort: ascending, then randomly replace 1% of the elements w/ random values ~sort: many duplicates =sort: all equal !sort: worst case scenario s *\/3+%~=!R$ s %2s %7ss %6sR s 2**ii s %2d %7di i i����id i c S s | S( N( ( t x( ( s% /usr/lib64/python2.7/test/sortperf.pyt <lambda>y t g �i i����N( R s 2**i( t tuplet lenR R! R( R R R R R t mapt absR t float( R t cht casest fmtR R R% t dummyt i1t i2t half( ( s% /usr/lib64/python2.7/test/sortperf.pyt tabulateB sL # ! , c C s� d } d } t j d r� t t j d � } } t j d r� t t j d � } t j d r� d } x) t j d D] } d | t | � } qq Wt j | � q� q� n t | | d � } t | � d S( s� Main program when invoked as a script. One argument: tabulate a single row. Two arguments: tabulate a range (inclusive). Extra arguments are used to seed the random generator. i i i i i i� N( R t argvt intt hashR t seedR R8 ( t k1t k2R) t aR ( ( s% /usr/lib64/python2.7/test/sortperf.pyt main� s t __main__( t __doc__R R" R R t tempfileR t gettempdirR R R! R( R8 R@ t __name__( ( ( s% /usr/lib64/python2.7/test/sortperf.pyt <module> s ' L
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