| 1 | | {{{ |
| 2 | | #!html |
| 3 | | <h1>PANC−PROFILING.PL</h1> |
| 4 | | <a href="#NAME">NAME</a><br> |
| 5 | | <a href="#SYNOPSIS">SYNOPSIS</a><br> |
| 6 | | <a href="#DESCRIPTION">DESCRIPTION</a><br> |
| 7 | | <a href="#AUTHOR">AUTHOR</a><br> |
| 8 | | |
| 9 | | <hr> |
| 10 | | <a name="NAME"></a> |
| 11 | | <h2>NAME</h2> |
| 12 | | <!-- INDENTATION --> |
| 13 | | <table width="100%" border=0 rules="none" frame="void" |
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| 15 | | <tr valign="top" align="left"> |
| 16 | | <td width="10%"></td> |
| 17 | | <td width="89%"> |
| 18 | | <p>panc-profiling.pl − generate profiling information |
| 19 | | from panc log file</p> |
| 20 | | </td> |
| 21 | | </table> |
| 22 | | <a name="SYNOPSIS"></a> |
| 23 | | <h2>SYNOPSIS</h2> |
| 24 | | <!-- INDENTATION --> |
| 25 | | <table width="100%" border=0 rules="none" frame="void" |
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| 27 | | <tr valign="top" align="left"> |
| 28 | | <td width="10%"></td> |
| 29 | | <td width="89%"> |
| 30 | | <p><b>panc−profiling.pl</b> |
| 31 | | [<b>−−help</b>] |
| 32 | | [<b>−−usefunctions</b>] {logfile}</p> |
| 33 | | </td> |
| 34 | | </table> |
| 35 | | <a name="DESCRIPTION"></a> |
| 36 | | <h2>DESCRIPTION</h2> |
| 37 | | <!-- INDENTATION --> |
| 38 | | <table width="100%" border=0 rules="none" frame="void" |
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| 40 | | <tr valign="top" align="left"> |
| 41 | | <td width="10%"></td> |
| 42 | | <td width="89%"> |
| 43 | | <p>The <b>panc−profiling.pl</b> script will analyze a |
| 44 | | panc log file and report profiling information. The script |
| 45 | | takes the name of the log file as its first argument. The |
| 46 | | second argument determines if function call information will |
| 47 | | be included (flag=1) or not (flag=0). By default, the |
| 48 | | function call information is not included. If no argument is |
| 49 | | given or the <b>−−help</b> option is used, a |
| 50 | | short usage message is printed. <i>The log file must have |
| 51 | | been created with "call" logging enabled.</i></p> |
| 52 | | <!-- INDENTATION --> |
| 53 | | <p>Two files are created for each object template: one with |
| 54 | | ´top−down´ profile information and the |
| 55 | | other with ´bottom−up´ information.</p> |
| 56 | | <!-- INDENTATION --> |
| 57 | | <p>The top−down file contains a text representation of |
| 58 | | the call tree with each entry giving the total time spent in |
| 59 | | that template and any templates called from that template. |
| 60 | | At each level, one can use this to understand the relative |
| 61 | | time spent in a node and each direct descendant.</p> |
| 62 | | <!-- INDENTATION --> |
| 63 | | <p>The bottom−up file provides how much time is spent |
| 64 | | directly in each template (or function), ignoring any time |
| 65 | | spent in templates called from it. This allows one to see |
| 66 | | how much time is spent in each template regardless of how |
| 67 | | the template (or function) was called.</p> |
| 68 | | <!-- INDENTATION --> |
| 69 | | <p>All of the timing information is the |
| 70 | | "wall−clock" time, so other activity on the |
| 71 | | machine and the logging itself can influence the output. |
| 72 | | Nonetheless, the profiling information should be adequate to |
| 73 | | understand inefficient parts of a particular build.</p> |
| 74 | | </td> |
| 75 | | </table> |
| 76 | | <a name="AUTHOR"></a> |
| 77 | | <h2>AUTHOR</h2> |
| 78 | | <!-- INDENTATION --> |
| 79 | | <table width="100%" border=0 rules="none" frame="void" |
| 80 | | cols="2" cellspacing="0" cellpadding="0"> |
| 81 | | <tr valign="top" align="left"> |
| 82 | | <td width="10%"></td> |
| 83 | | <td width="89%"> |
| 84 | | <p><b>Charles Loomis</b></p></td> |
| 85 | | </table> |
| 86 | | }}} |
