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Bug 379233 - check offset before recording page load complete - r=vladimir
author Alice Nodelman <alice@mozilla.com>
date Fri, 17 Sep 2010 11:34:40 -0400
parents dd0018bc27de
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
196
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1 Pageload Test Component
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2 =======================
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3
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4 Usage:
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5
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6 ./firefox -tp file:///path/to/manifest.txt [-tpargs...]
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7
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8 See ./firefox -help for other arguments.
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9
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10
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11 Manifest file format
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12 ====================
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13
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14 Comments in the manifest file start with a #. Each line may be:
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15
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16 * a URL (absolute or relative to the manifest)
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17
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18 This URL is added to the list of tests.
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19
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20 * one or more flags, followed by whitespace, followed by a URL
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21
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22 The only flag supported currently is '%', which indicates that
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23 a test will do its own timing. (See Self-timing Tests below.)
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24
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25 * "include" followed by whitespace, followed by a URL
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26
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27 Parse the given manifest file.
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28
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29 Self-timing Tests
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30 =================
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31
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32 Most timing tests are interested in timing how long it takes the page
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33 to load; that is, from the start of page loading until the 'load'
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34 event is dispatched. By default, this is what the pageloader will
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35 time. However, if a test URL has the % flag, the test is expected to
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36 report its own timing. For this purpose, the pageloader will provide
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37 a function named "tpRecordTime" in the test's global object that it
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38 should call once it has performed whatever timing it wants to do.
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39 The given value will be used as the timing result for this test.
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40
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41 Output format
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42 =============
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43
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44 The result is a dump to stdout via dump() --
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45 browser.dom.window.dump.enabled must be set to true in the profile. A
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46 number of output formats can be specified via the -tpformat command
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47 line option, currently 'js', 'text', and 'tinderbox' are supported.
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48
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49 Sample 'js' format output:
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50
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51 ([({page:"1280x1024-PNG/index.html", value:133, stddev:20.049937655763422}),({page:"bugzilla.mozilla.org/index.html", value:233, stddev:36.66606060105176}),({page:"espn.go.com/index.html", value:117.6, stddev:1.2}),({page:"home.netscape.com/index.html", value:97.8, stddev:47.41898354035017}),])
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52
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53 Sample 'text' format output:
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54
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55 ============================================================
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56 Page mean stdd min max raw
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57 0 1280x1024-PNG/index.html 133 20 121 297 297,173,122,121,124,125
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58 1 bugzilla.mozilla.org/index.html 233 37 192 395 395,273,223,192,198,279
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59 2 espn.go.com/index.html 118 1 116 254 254,117,116,119,119,117
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60 3 home.netscape.com/index.html 98 47 3 124 3,121,120,124,124,121
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61 ============================================================
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62
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63 Sample 'tinderbox' format output:
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64
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65 __start_tp_report
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66 _x_x_mozilla_page_load,778.5,NaN,NaN
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67 _x_x_mozilla_page_load_details,avgmedian|778.5|average|766.75|minimum|NaN|maximum|NaN|stddev|NaN|0;file:///c:/proj/mozilla-cvs/perf/tp2/base/www.cnn.com/index.html;778.5;766.75;722;1027;1027;788;777;722;780|...
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68 __end_tp_report
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69
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70 Note that the minimum, maximum, stddev are not calculated; they're
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71 always reported as NaN. (They were the minimum and maximum values of
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72 any sampled value, and the standard deviation across all sampled
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73 values -- not very useful.)
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74
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75 TODO
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76 ====
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77
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78 * Command line option to choose whether to run with or without browser chrome. Currently runs without.
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79
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80 * Tinderbox-dropping style output
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81 * better yet would be to teach tinderbox about JSON