raptor-metrics.rst (41344B)
1 ################ 2 Metrics Gathered 3 ################ 4 5 .. contents:: 6 :depth: 2 7 :local: 8 9 **WARNING: This page is still being actively developed.** 10 11 This document contains information about the metrics gathered in Browsertime tests, as well as detailed information about how they are gathered. 12 13 Pageload Tests 14 -------------- 15 16 For browsertime pageload tests, there is a limited set of metrics that we collect (which can easily be expanded). Currently we divide these into two sets of metrics: (i) visual metrics, and (ii) technical metrics. These are gathered through two types of tests called warm and cold pageload tests. We have combined these two into a single "Chimera" mode which you'll find in the Treeherder tasks. 17 18 Below, you can find the process of how we run Warm, Cold, and Chimera pageload tests. 19 20 Warm Pageload 21 ============== 22 23 In this pageload test type, we open the browser, then repeatedly navigate to the same page without restarting the browser in between cycles. 24 25 * A new, or conditioned, browser profile is created 26 * The browser is started up 27 * Post-startup browser settle pause of 30 seconds or 1 second if using a conditioned profile 28 * A new tab is opened 29 * The test URL is loaded; measurements taken 30 * The tab is reloaded ``X`` more times (for ``X`` replicates); measurements taken each time 31 32 NOTES: 33 - The measurements from the first page-load are not included in overall results metrics because of first load noise; however they are listed in the JSON artifacts 34 - The bytecode cache gets populated on the first test cycle, and subsequent iterations will already have the cache built to reduce noise. 35 36 Cold Pageload 37 ============== 38 39 In this pageload test type, we open the browser, navigate to the page, then restart the browser before performing the next cycle. 40 41 * A new, or conditioned, browser profile is created 42 * The browser is started up 43 * Post-startup browser settle pause of 30 seconds or 1 second if using a conditioned profile 44 * A new tab is opened 45 * The test URL is loaded; measurements taken 46 * The browser is shut down 47 * Entire process is repeated for the remaining browser cycles 48 49 NOTE: The measurements from all browser cycles are used to calculate overall results. 50 51 Chimera Pageload 52 ================ 53 54 A new mode for pageload testing is called Chimera mode. It combines the warm and cold variants into a single test. This test mode is used in our Taskcluster tasks. 55 56 * A new, or conditioned, browser profile is created 57 * The browser is started up 58 * Post-startup browser settle pause of 30 seconds or 1 second if using a conditioned profile 59 * A new tab is opened 60 * The test URL is loaded; measurements taken for ``Cold pageload`` 61 * Navigate to a secondary URL (to preserve the content process) 62 * The test URL is loaded again; measurements taken for ``Warm pageload`` 63 * The desktop browser is shut down 64 * Entire process is repeated for the remaining browser cycles 65 66 NOTE: The bytecode cache mentioned in Warm pageloads still applies here. 67 68 Technical Metrics 69 ================= 70 71 Technical metrics are values obtained directly from the browser. This includes metrics like First Paint, DOM Content Flushed, etc.. 72 73 Visual Metrics 74 ============== 75 76 Visual metrics can be obtained by running Raptor Browsertime with ``--browsertime-visualmetrics``, it will record a video of the page being loaded and then process this video to build the metrics. The video is either produced using FFMPEG (with ``--browsertime-no-ffwindowrecorder``) or the Firefox Window Recorder (default). 77 78 79 Benchmarks 80 ---------- 81 82 Benchmarks gather their own custom metrics, unlike the pageload tests above. Please ping the owners of those benchmarks to determine what they mean and how they are produced, or reach out to the Performance Test and Tooling team in #perftest on Element. 83 84 Metric Definitions 85 ------------------ 86 87 The following documents all available metrics that current alert in Raptor Browsertime tests. 88 89 Contentful Speed Index 90 ====================== 91 Similar to SpeedIndex, except that it uses the contentfulness of a frame to determine visual completeness, rather than relying on histogram differences. The contentfulness is determined by calculating the number of edges found in the frame. A lower number of edges detected gives a smaller contentfulness value (and a smaller visually complete value). 92 93 94 * **Aliases**: ContentfulSpeedIndex 95 * **Tests using it**: 96 * **Custom**: `connect <raptor.html#connect-c>`__, `process-switch <raptor.html#process-switch-c>`__, `throttled <raptor.html#throttled-c>`__, `welcome <raptor.html#welcome-c>`__ 97 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 98 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 99 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 100 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 101 102 103 Estimated Frame Latency (Any) 104 ============================= 105 Similar to estimatedFirstFrameLatency, except that it uses all identified frames during video playback, normalized to be an estimate of when the first frame was displayed by using the expected time offset from the video itself. 106 107 108 * **Aliases**: estimatedAnyFrameLatency 109 * **Tests using it**: 110 * **Custom**: `vpl-av1 <raptor.html#vpl-av1-c>`__, `vpl-h264 <raptor.html#vpl-h264-c>`__, `vpl-vp9 <raptor.html#vpl-vp9-c>`__ 111 112 113 Estimated Frame Latency (First) 114 =============================== 115 A metric used to denote the latency on displaying the first frame of a video. Calculated by using videos of the pageload from which key frames are identified by matching a given solid RGB color with fuzz. 116 117 118 * **Aliases**: estimatedFirstFrameLatency 119 * **Tests using it**: 120 * **Custom**: `vpl-av1 <raptor.html#vpl-av1-c>`__, `vpl-h264 <raptor.html#vpl-h264-c>`__, `vpl-vp9 <raptor.html#vpl-vp9-c>`__ 121 122 123 First Paint 124 =========== 125 Denotes the first time the browser performs a paint that has content in it (in ms). 126 127 128 * **Aliases**: First Contentful Composite, First Contentful Paint, fcp 129 * **Tests using it**: 130 * **Custom**: `browsertime <raptor.html#browsertime-c>`__, `connect <raptor.html#connect-c>`__, `process-switch <raptor.html#process-switch-c>`__, `throttled <raptor.html#throttled-c>`__, `welcome <raptor.html#welcome-c>`__ 131 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 132 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 133 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 134 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 135 * **Unittests**: `test-page-1 <raptor.html#test-page-1-u>`__, `test-page-2 <raptor.html#test-page-2-u>`__, `test-page-3 <raptor.html#test-page-3-u>`__, `test-page-4 <raptor.html#test-page-4-u>`__ 136 137 138 First Visual Change 139 =================== 140 The first visual change detected in the test (in ms). 141 142 * **Aliases**: FirstVisualChange 143 * **Tests using it**: 144 * **Custom**: `connect <raptor.html#connect-c>`__, `process-switch <raptor.html#process-switch-c>`__, `throttled <raptor.html#throttled-c>`__, `welcome <raptor.html#welcome-c>`__ 145 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 146 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 147 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 148 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 149 150 151 Largest Contentful Paint 152 ======================== 153 The time (in ms) at which the largest piece of content on the page was rendered/painted. 154 155 156 * **Aliases**: largestContentfulPaint, lcp 157 * **Tests using it**: 158 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 159 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 160 161 162 Last Visual Change 163 ================== 164 The last visual change detected in the test (in ms). 165 166 * **Aliases**: LastVisualChange 167 * **Tests using it**: 168 * **Custom**: `process-switch <raptor.html#process-switch-c>`__, `welcome <raptor.html#welcome-c>`__ 169 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 170 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 171 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 172 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 173 174 175 Load Time 176 ========= 177 The time it took for the page to complete loading (in ms). 178 179 * **Aliases**: loadtime 180 * **Tests using it**: 181 * **Custom**: `browsertime <raptor.html#browsertime-c>`__, `connect <raptor.html#connect-c>`__, `process-switch <raptor.html#process-switch-c>`__, `throttled <raptor.html#throttled-c>`__, `welcome <raptor.html#welcome-c>`__ 182 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 183 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 184 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 185 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 186 * **Unittests**: `test-page-1 <raptor.html#test-page-1-u>`__, `test-page-2 <raptor.html#test-page-2-u>`__, `test-page-3 <raptor.html#test-page-3-u>`__, `test-page-4 <raptor.html#test-page-4-u>`__ 187 188 189 Perceptual Speed Index 190 ====================== 191 Similar to SpeedIndex, except that it uses the structural similarity index measure (ssim) to determine visual completeness. This technique compares the luminance, contrast, and structure of the frames (a given frame vs. a final frame) to determine the completeness. 192 193 194 * **Aliases**: PerceptualSpeedIndex 195 * **Tests using it**: 196 * **Custom**: `connect <raptor.html#connect-c>`__, `process-switch <raptor.html#process-switch-c>`__, `throttled <raptor.html#throttled-c>`__, `welcome <raptor.html#welcome-c>`__ 197 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 198 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 199 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 200 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 201 202 203 Speed Index 204 =========== 205 A metric used to denote the speed at which a page loaded. Lower values indicate faster pageloads. Units are in (Visually-Complete x Milliseconds). Calculated by using videos of the pageload which provide a measure of visual completeness. Visual completeness is calculated by comparing the histogram of a given frame to the final frame of the pageload. The SpeedIndex is calculated as the area between the curves of a constant line at y=1, and the graph of the visual completeness from 0ms to when visual completeness reaches 100% (or hits the y=1 line). 206 207 208 * **Aliases**: SpeedIndex 209 * **Tests using it**: 210 * **Custom**: `connect <raptor.html#connect-c>`__, `process-switch <raptor.html#process-switch-c>`__, `throttled <raptor.html#throttled-c>`__, `welcome <raptor.html#welcome-c>`__ 211 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai <raptor.html#openai-d>`__, `outlook <raptor.html#outlook-d>`__, `paypal <raptor.html#paypal-d>`__, `pinterest <raptor.html#pinterest-d>`__, `reddit <raptor.html#reddit-d>`__, `samsung <raptor.html#samsung-d>`__, `tiktok <raptor.html#tiktok-d>`__, `tumblr <raptor.html#tumblr-d>`__, `twitch <raptor.html#twitch-d>`__, `twitter <raptor.html#twitter-d>`__, `weather <raptor.html#weather-d>`__, `wikia <raptor.html#wikia-d>`__, `wikipedia <raptor.html#wikipedia-d>`__, `yahoo-mail <raptor.html#yahoo-mail-d>`__, `youtube <raptor.html#youtube-d>`__ 212 * **Interactive**: `cnn-nav <raptor.html#cnn-nav-i>`__, `facebook-nav <raptor.html#facebook-nav-i>`__, `reddit-billgates-ama <raptor.html#reddit-billgates-ama-i>`__, `reddit-billgates-post-1 <raptor.html#reddit-billgates-post-1-i>`__, `reddit-billgates-post-2 <raptor.html#reddit-billgates-post-2-i>`__ 213 * **Live**: `booking-sf <raptor.html#booking-sf-l>`__, `discord <raptor.html#discord-l>`__, `fashionbeans <raptor.html#fashionbeans-l>`__, `google-accounts <raptor.html#google-accounts-l>`__, `imdb-firefox <raptor.html#imdb-firefox-l>`__, `medium-article <raptor.html#medium-article-l>`__, `people-article <raptor.html#people-article-l>`__, `reddit-thread <raptor.html#reddit-thread-l>`__, `rumble-fox <raptor.html#rumble-fox-l>`__, `stackoverflow-question <raptor.html#stackoverflow-question-l>`__, `urbandictionary-define <raptor.html#urbandictionary-define-l>`__, `wikia-marvel <raptor.html#wikia-marvel-l>`__ 214 * **Mobile**: `allrecipes <raptor.html#allrecipes-m>`__, `amazon <raptor.html#amazon-m>`__, `amazon-search <raptor.html#amazon-search-m>`__, `bild-de <raptor.html#bild-de-m>`__, `bing <raptor.html#bing-m>`__, `bing-search-restaurants <raptor.html#bing-search-restaurants-m>`__, `booking <raptor.html#booking-m>`__, `cnn <raptor.html#cnn-m>`__, `cnn-ampstories <raptor.html#cnn-ampstories-m>`__, `dailymail <raptor.html#dailymail-m>`__, `ebay-kleinanzeigen <raptor.html#ebay-kleinanzeigen-m>`__, `ebay-kleinanzeigen-search <raptor.html#ebay-kleinanzeigen-search-m>`__, `espn <raptor.html#espn-m>`__, `facebook <raptor.html#facebook-m>`__, `facebook-cristiano <raptor.html#facebook-cristiano-m>`__, `google <raptor.html#google-m>`__, `google-maps <raptor.html#google-maps-m>`__, `google-search-restaurants <raptor.html#google-search-restaurants-m>`__, `imdb <raptor.html#imdb-m>`__, `instagram <raptor.html#instagram-m>`__, `microsoft-support <raptor.html#microsoft-support-m>`__, `reddit <raptor.html#reddit-m>`__, `sina <raptor.html#sina-m>`__, `stackoverflow <raptor.html#stackoverflow-m>`__, `wikipedia <raptor.html#wikipedia-m>`__, `youtube <raptor.html#youtube-m>`__, `youtube-watch <raptor.html#youtube-watch-m>`__ 215 216 217 Youtube Playback Metrics 218 ======================== 219 Metrics starting with VP9/H264 give the number of frames dropped, and painted. 220 221 222 * **Aliases**: H264, VP9 223 * **Tests using it**: 224 * **Benchmarks**: `youtube-playback-hfr <raptor.html#youtube-playback-hfr-b>`__ 225 226 227 cpu Time 228 ======== 229 Specifies cumulative CPU usage in milliseconds across all threads of the process since the process start. 230 231 232 * **Aliases**: cpuTime 233 * **Tests using it**: 234 * **Benchmarks**: `speedometer <raptor.html#speedometer-b>`__, `speedometer3 <raptor.html#speedometer3-b>`__, `youtube-playback-h264-1080p30 <raptor.html#youtube-playback-h264-1080p30-b>`__, `youtube-playback-h264-1080p60 <raptor.html#youtube-playback-h264-1080p60-b>`__, `youtube-playback-h264-full-1080p30 <raptor.html#youtube-playback-h264-full-1080p30-b>`__, `youtube-playback-h264-full-1080p60 <raptor.html#youtube-playback-h264-full-1080p60-b>`__, `youtube-playback-v9-1080p30 <raptor.html#youtube-playback-v9-1080p30-b>`__, `youtube-playback-v9-1080p60 <raptor.html#youtube-playback-v9-1080p60-b>`__, `youtube-playback-v9-full-1080p30 <raptor.html#youtube-playback-v9-full-1080p30-b>`__, `youtube-playback-v9-full-1080p60 <raptor.html#youtube-playback-v9-full-1080p60-b>`__ 235 * **Custom**: `addMab1 <raptor.html#addMab1-c>`__, `addMabN <raptor.html#addMabN-c>`__, `addMar1 <raptor.html#addMar1-c>`__, `addMarN <raptor.html#addMarN-c>`__, `addMbl1 <raptor.html#addMbl1-c>`__, `addMblN <raptor.html#addMblN-c>`__, `addkAB1 <raptor.html#addkAB1-c>`__, `addkABN <raptor.html#addkABN-c>`__, `addkAR1 <raptor.html#addkAR1-c>`__, `addkARN <raptor.html#addkARN-c>`__, `addkBL1 <raptor.html#addkBL1-c>`__, `addkBLN <raptor.html#addkBLN-c>`__, `getkeyrng <raptor.html#getkeyrng-c>`__, `idb-open-few-par <raptor.html#idb-open-few-par-c>`__, `idb-open-few-seq <raptor.html#idb-open-few-seq-c>`__, `idb-open-many-par <raptor.html#idb-open-many-par-c>`__, `idb-open-many-seq <raptor.html#idb-open-many-seq-c>`__ 236 * **Desktop**: `amazon <raptor.html#amazon-d>`__, `bing-search <raptor.html#bing-search-d>`__, `buzzfeed <raptor.html#buzzfeed-d>`__, `cnn <raptor.html#cnn-d>`__, `docomo <raptor.html#docomo-d>`__, `ebay <raptor.html#ebay-d>`__, `espn <raptor.html#espn-d>`__, `expedia <raptor.html#expedia-d>`__, `facebook <raptor.html#facebook-d>`__, `fandom <raptor.html#fandom-d>`__, `google-docs <raptor.html#google-docs-d>`__, `google-mail <raptor.html#google-mail-d>`__, `google-search <raptor.html#google-search-d>`__, `google-slides <raptor.html#google-slides-d>`__, `imdb <raptor.html#imdb-d>`__, `imgur <raptor.html#imgur-d>`__, `instagram <raptor.html#instagram-d>`__, `linkedin <raptor.html#linkedin-d>`__, `microsoft <raptor.html#microsoft-d>`__, `netflix <raptor.html#netflix-d>`__, `nytimes <raptor.html#nytimes-d>`__, `office <raptor.html#office-d>`__, `openai 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