[Meetup] The AOSP and AAOS November meetup

Am 15.11.2023 hat Stefan Lengfeld einen Vortrag bei The AOSP and AAOS Meetup gehalten.

Talk: Adventures with Systrace – measure and investigate the glass to glass latency in Android

What is the glass to glass latency in Android? This means how much delay is between the camera, taking a picture, and the screen, to display the picture again. This presentation is a technical tour through the Android graphics system and hardware. From the measurement setup, based on cables, LEDs, photodiodes and an oscilloscope, to camera sensors and the rolling shutter effect, to displays and refresh rates, to surfaceflinger and vsyncs, and last but not least to the ultimate tool to debug most of your performance issues, to Android’s systrace.

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Über den Speaker:

Stefan Lengfeld arbeitet seit 2017 als Embedded Linux und Embedded Android Entwickler bei inovex in Köln. Seit 2015 ist er Linux Kernel Contributor und beschäftigt sich beruflich mit allen Themen rund um Embedded Linux Software Entwicklung. Neben der regen Teilnahme an Konferenzen ist er auch in seiner Freizeit Opensource Contributor und arbeitet an eigenen Software Projekten.