Subject: write_data spends too much time to create file.
From: Leo Butler
Date: Tue, 3 Aug 2010 06:05:39 +0100 (BST)
On Mon, 2 Aug 2010, Alejandro Morales wrote:
< Dear Leo:
< Here the results of your suggestion:
<
< %i1) showtime:true $
< Evaluation took 0.0000 seconds (0.0000 elapsed) using 32 bytes.
< (%i2) array(new,1000,1) $
< Evaluation took 0.0000 seconds (0.0000 elapsed) using 8.164 KB.
< (%i3) for a:0 thru 1000 step 1 do (new[a,0]:a,new[a,1]:a+1) $
< Evaluation took 0.0100 seconds (0.0100 elapsed) using 579.039 KB.
< (%i4) write_data(new,"new.dat");
< Evaluation took 0.1100 seconds (0.1100 elapsed) using 7.901 MB.
<
< %i5) build_info();
<
< Maxima version: 5.21.1
< Maxima build date: 21:4 7/30/2010
< Host type: x86_64-unknown-linux-gnu
< Lisp implementation type: CMU Common Lisp
< Lisp implementation version: Snapshot 2010-07 (20A Unicode)
<
< Thank you very much.
< Morales
Hi,
Perhaps you should file a bug report about this on the
debian or ubuntu (or whatever your distro is) clisp package.
write_data is a pretty straightforward lisp function,
so it seems likely that there is a bug in the 64bit build of clisp.
Leo
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