A Benchmark Test on Presto, Spark Sql and Hive on TezGw Liu
Presto、Spark SQLとHive on Tezの性能に関して、数万件から数十億件までのデータ上に、常用クエリパターンの実行スピードなどを検証してみた。
We conducted a benchmark test on mainstream big data sql engines including Presto, Spark SQL, Hive on Tez.
We focused on the performance over medium data (from tens of GB to 1 TB) which is the major case used in most services.
This document lists files in a directory related to documentation for an engine project. It includes documentation files for Lua, C#, C++, libraries, modules, tasks, and how to run samples. It also includes source files related to language bindings between Lua, C++ and C#.
The document discusses various Android application programming interfaces (APIs) including how to use intents to communicate between activities and access Google Maps. It provides links to the Android developer documentation and guides for learning how to use APIs like Google Maps and Twitter in Android applications. Tips are also given on resizing applications for different screen sizes and encoding video for streaming.
This document discusses Android SDK and provides tips for its use. It mentions downloading the SDK, setting up development environments, and basic syntax and functions. Links are provided for additional slang and Twitter resources to aid in learning and development.
The document discusses KLab, an IT company that develops Android apps. It notes that KLab started developing Android apps after the Android 1.0 SDK was released in 2007. KLab also participates in programming competitions like ACM-ICPC and TopCoder. The document encourages readers to try Android development and participating in TopCoder competitions. It notes that over 75 million people have downloaded KLab's Android apps so far.
Google App Engine is a platform for developing and hosting web applications at Google-scale. It allows developers to build applications on Google's infrastructure using common programming languages and APIs. App Engine automatically scales as traffic to an application changes. Google also utilizes Site Reliability Engineering practices to maintain high service availability for App Engine applications.
This document discusses the release of version 1.1 of the muo Android application. It notes that the update includes support for Android 2.3 (Gingerbread) and 3.0 (Honeycomb), as well as some minor bug fixes and improvements. The developer thanks users for their continued support and feedback to help improve the app. Links are also provided to Japanese Android developer resources and the muo website for more information.
IoT Devices Compliant with JC-STAR Using Linux as a Container OSTomohiro Saneyoshi
Security requirements for IoT devices are becoming more defined, as seen with the EU Cyber Resilience Act and Japan’s JC-STAR.
It's common for IoT devices to run Linux as their operating system. However, adopting general-purpose Linux distributions like Ubuntu or Debian, or Yocto-based Linux, presents certain difficulties. This article outlines those difficulties.
It also, it highlights the security benefits of using a Linux-based container OS and explains how to adopt it with JC-STAR, using the "Armadillo Base OS" as an example.
Feb.25.2025@JAWS-UG IoT
12. 当然一筋縄ではいかない
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