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PSPP-BUG: [bug #33260] terrible performance when data paged to disk


From: Ben Pfaff
Subject: PSPP-BUG: [bug #33260] terrible performance when data paged to disk
Date: Tue, 25 Jun 2013 06:08:25 +0000
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:10.0.12) Gecko/20100101 Firefox/10.0.12 Iceweasel/10.0.12

Update of bug #33260 (project pspp):

                  Status:                    None => Ready for Test/Review  

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Follow-up Comment #6:

I pushed a commit that made your test case much faster.  I believe that it
reduces the time to read a row from O(N**2) in the number of columns to O(N),
in the common case.

John, can you try it out too?

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?33260>

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