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Perfetto<\/a> is Google\u2019s open-source tracing ecosystem covering Linux kernel tracing (and user-mode) and built into Android. Perfetto is best-in-class for Android tracing. The Perfetto ecosystem covers System Profiling, In-App Tracing, Trace Viewer, and Trace Analysis.<\/p>\n The Perfetto ecosystem is Google\u2019s equivalent of the Microsoft Event Tracing for Windows (ETW) ecosystem. We worked with Google to complete their vision of making Perfetto trace processor<\/a> truly available cross platform, including now on Windows!<\/p>\n With this trace processor support in place, we were able to add value building on top of this great core, to create the Perfetto Microsoft-Performance-Tools-Linux-Android tooling. Among other things, the tooling newly exposes the Perfetto trace processor via .NET Core & C#, does unique post-processing and analysis, and optionally exposes the data to Windows Performance Analyzer (WPA).<\/p>\n In the rest of this blog post, we will walk you through analyzing a simple example trace on Android Open Source Project (AOSP) 12<\/a>. I will give you a quick tour to get started capturing & analyzing a scenario, otherwise this blog post would get too long.<\/p>\n Android 12, just recently released, has some exciting new trace collection features that devs will love! We have found these similar tracing capture features quite useful for Windows analysis.<\/p>\n If you take a trace on an older Android OS, such as Android 11+ \/ Q+, then you still get great tracing such as: CPU, GPU, Power, Memory, Android Apps & Svcs, and Chrome. See record new trace<\/a>.<\/p>\n In this post we will use the following tools and will walk through each of them<\/p>\n Figure 2 – Perfetto Record UI – CPU Probes<\/p>\n Figure 3 – Perfetto UI – Recording command<\/p>\n <\/p>\n <\/p>\n Hopefully you can use these powerful Perfetto tools on Android & Chrome to gain insight into what the system and how your code is performing. These are powerful tools you can use as a dev to improve perf!<\/p>\n We walked through how to configure trace capturing and added some new Android 12+ goodness with CPU Sampling.<\/p>\n If this trace is running say inside a Windows VM, such as in Windows Subsystem for Android (WSA), you can optionally co-load an Android Perfetto trace in the same timeline as the Windows ETW trace.<\/p>\n You may be interested in these other blogs post covering WPA in more detail. The great thing about the integration with WPA, is that the Microsoft-Performance-Tools-Linux-Android plugins are considered first class right along with Windows ETW support.<\/p>\n This means that almost every powerful WPA feature covered in these blog posts, seamlessly is the same experience and also applicable to the Microsoft-Performance-Tools-Linux-Android plugins. Enjoy!<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Introduction In the last blog post, we introduced the cross platform open-source .NET Core Microsoft-Performance-Tools-Linux-Android tooling. Recently, we just released version 1.2 adding Perfetto support, which we will cover here. Perfetto is Google\u2019s open-source tracing ecosystem covering Linux kernel tracing (and user-mode) and built into Android. Perfetto is best-in-class for Android tracing. The Perfetto ecosystem […]<\/p>\n","protected":false},"author":77202,"featured_media":76,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[39,38,2],"tags":[43,44,26,14],"class_list":["post-476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux-android","category-microsoft-performance-tools","category-windows-performance-analyzer","tag-android","tag-perfetto","tag-performance","tag-windows-performance-analyzer"],"acf":[],"blog_post_summary":" Introduction In the last blog post, we introduced the cross platform open-source .NET Core Microsoft-Performance-Tools-Linux-Android tooling. Recently, we just released version 1.2 adding Perfetto support, which we will cover here. Perfetto is Google\u2019s open-source tracing ecosystem covering Linux kernel tracing (and user-mode) and built into Android. Perfetto is best-in-class for Android tracing. The Perfetto ecosystem […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/posts\/476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/users\/77202"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/comments?post=476"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/posts\/476\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/media\/76"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/media?parent=476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/categories?post=476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/performance-diagnostics\/wp-json\/wp\/v2\/tags?post=476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
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Perfetto \u2013 Trace Capture<\/h2>\n
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data_sources: {\r\n config {\r\n name: \"linux.perf\"\r\n perf_event_config {\r\n timebase {\r\n frequency: 1000\r\n }\r\n callstack_sampling {\r\n kernel_frames: true\r\n }\r\n }\r\n }\r\n}<\/pre>\n\n
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adb devices<\/pre>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
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adb push perfetto_trace_config \/data\/local\/tmp<\/pre>\n<\/li>\n<\/ol>\n<\/li>\n
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cat \/data\/local\/tmp\/perfetto_trace_config | perfetto -o \/data\/misc\/perfetto-traces\/perfetto_trace.pftrace --txt -c \u2013<\/pre>\n<\/li>\n
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adb pull \/data\/misc\/perfetto-traces\/perfetto_trace.pftrace c:\\temp<\/pre>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
Trace Analysis with Microsoft-Performance-Tools-Linux-Android and WPA<\/h2>\n
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Analyzing our example Android 12 trace<\/h2>\n
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Wrap-up<\/h2>\n
Bonus \/ Next Steps – Deeper dive into the WPA UI<\/h2>\n
Windows Performance Analyzer \u201cWPA\u201d Intro<\/a><\/h5>\n
Windows Performance Analyzer \u2013 Table & Graph Configurations (Part 1)<\/a><\/h5>\n
WPA: Table & Graph Configurations (Part 2)<\/a><\/h5>\n