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Vectorize and use Octave coding conventions for profile script files * profile.m: Add nargin check at input. Add warning message for unrecognized option. * profshow.m: Add input validation for nargin and n. Use # instead of % for comment character. Vectorize two for loops.
author Rik <octave@nomad.inbox5.com>
date Fri, 22 Jul 2011 15:30:52 -0700
parents 23377c46516b
children ca5c1115b679
comparison
equal deleted inserted replaced
12871:23377c46516b 12872:031e1a2c26f3
15 ## You should have received a copy of the GNU General Public License 15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see 16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>. 17 ## <http://www.gnu.org/licenses/>.
18 18
19 ## -*- texinfo -*- 19 ## -*- texinfo -*-
20 ## @deftypefn {Function File} {} profshow (@var{data}) 20 ## @deftypefn {Function File} {} profshow (@var{data})
21 ## @deftypefnx {Function File} {} profshow (@var{data}, @var{n}) 21 ## @deftypefnx {Function File} {} profshow (@var{data}, @var{n})
22 ## Show flat profiler results. 22 ## Show flat profiler results.
23 ## 23 ##
24 ## This command prints out profiler data as a flat profile. @var{data} is the 24 ## This command prints out profiler data as a flat profile. @var{data} is the
25 ## structure returned by @code{profile ('info')}. If @var{n} is given, it 25 ## structure returned by @code{profile ('info')}. If @var{n} is given, it
30 ## @end deftypefn 30 ## @end deftypefn
31 31
32 ## Built-in profiler. 32 ## Built-in profiler.
33 ## Author: Daniel Kraft <d@domob.eu> 33 ## Author: Daniel Kraft <d@domob.eu>
34 34
35 function profshow (data, n) 35 function profshow (data, n = 20)
36 36
37 if (nargin < 2) 37 if (nargin < 1 || nargin > 2)
38 n = 20; 38 print_usage ();
39 endif
40
41 n = fix (n);
42 if (! isscalar (n) || ! isreal (n) || ! (n > 0))
43 error ("profile: N must be a positive integer");
39 endif 44 endif
40 45
41 m = length (data.FunctionTable); 46 m = length (data.FunctionTable);
42 n = min (n, m); 47 n = min (n, m);
43 48
44 % We want to sort by times in descending order. For this, extract the 49 ## We want to sort by times in descending order. For this, extract the
45 % times to an array, then sort this, and use the resulting index permutation 50 ## times to an array, then sort this, and use the resulting index permutation
46 % to print out our table. 51 ## to print out our table.
47 times = NA (1, m); 52 times = -[ data.FunctionTable.TotalTime ];
48 for i = 1 : m 53
49 times(i) = - data.FunctionTable(i).TotalTime;
50 endfor
51 [~, p] = sort (times); 54 [~, p] = sort (times);
52 55
53 % For printing the table, find out the maximum length of a function name 56 ## For printing the table, find out the maximum length of a function name
54 % so that we can proportion the table accordingly. Based on this, 57 ## so that we can proportion the table accordingly. Based on this,
55 % we can build the format used for printing table rows. 58 ## we can build the format used for printing table rows.
56 nameLen = length ('Function'); 59 nameLen = length ('Function');
57 for i = 1 : n 60 for i = 1 : n
58 nameLen = max (nameLen, length (data.FunctionTable(p(i)).FunctionName)); 61 nameLen = max (nameLen, length (data.FunctionTable(p(i)).FunctionName));
59 endfor 62 endfor
60 headerFormat = sprintf ('%%%ds %%12s %%12s\n', nameLen); 63 headerFormat = sprintf ('%%%ds %%12s %%12s\n', nameLen);
61 rowFormat = sprintf ('%%%ds%%13.3f%%13d\n', nameLen); 64 rowFormat = sprintf ('%%%ds%%13.3f%%13d\n', nameLen);
62 65
63 printf (headerFormat, 'Function', 'Time (s)', 'Calls'); 66 printf (headerFormat, 'Function', 'Time (s)', 'Calls');
64 for i = 1 : nameLen + 2 * 13 67 printf ("%s\n", repmat ('-', 1, nameLen + 2 * 13));
65 printf ('-');
66 endfor
67 printf ('\n');
68 for i = 1 : n 68 for i = 1 : n
69 row = data.FunctionTable(p(i)); 69 row = data.FunctionTable(p(i));
70 printf (rowFormat, row.FunctionName, row.TotalTime, row.NumCalls); 70 printf (rowFormat, row.FunctionName, row.TotalTime, row.NumCalls);
71 endfor 71 endfor
72 72
73 endfunction 73 endfunction
74
74 75
75 %!demo 76 %!demo
76 %! profile ('on'); 77 %! profile ('on');
77 %! A = rand (100); 78 %! A = rand (100);
78 %! B = expm (A); 79 %! B = expm (A);