Programming: C, JDK, LLVM and Debian
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Linux C Programming Tutorial Part 12 - Assignment Operators and Conditional Expressions
In this ongoing C programming tutorial series, we have already discussed some of the basic stuff like arithmetic, logical, and relational operators as well as conditional loops like 'if' and 'while'. Adding upon that, this tutorial will focus on assignment operators (other than =) and conditional expressions.
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Set up JDK Mission Control with Red Hat Build of OpenJDK
JDK Mission Control is now the newest member of the Red Hat Software Collections (RHSCL). JDK Mission Control is a powerful profiler for HotSpot Java virtual machines (JVMs) and has an advanced set of tools that enable efficient and detailed analysis of the extensive data collected by JDK Flight Recorder. The toolchain enables developers and administrators to collect and analyze data from Java applications running locally or deployed in production environments.
In this article, I will go through a primary example of setting up JDK Mission Control. For Linux, JDK Mission Control is part of the RHSCL and, for Windows, it is available as part of the OpenJDK zip distribution on the Red Hat Customer Portal. For Linux, these instructions assume that Red Hat Build of OpenJDK 11 is already installed. I will show how to set up the system to install software from RHSCL, which provides the latest development technologies for Red Hat Enterprise Linux. Then, I will install the JDK Mission Control and run a simple sample application. The whole tutorial should take fewer than 10 minutes to complete.
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A Big Patch Could Yield Big Performance Benefits For GPU Offloading With LLVM
The researchers at Saarland University in Germany continue doing interesting things with LLVM and a new patch for at least some benchmarks can yield big performance benefits for GPU offloading.
Johannes Doerfert of Saarland University published code this week on the OpenMP GPU code "SPMD-zation". The code builds upon their earlier proposal from months ago to allow for more code targeting the GPU to be executed in SPMD (Single Program, Multiple Data) mode and lightweight "guarded" modes where appropriate in order to overcome some bottlenecks in LLVM's existing OpenMP GPU offloading code.
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Ben Hutchings: Debian LTS work, February 2019
I was assigned 19.5 hours of work by Freexian's Debian LTS initiative and carried over 1 hour from January. I worked only 4 hours and so will carry over 16.5 hours.
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Hideki Yamane: pbuilder hack with new debootstrap option
Suddenly I noticed that maybe I can use --cache-dir option that I've added to debootstrap some time ago for pbuilder, too. Then hacked it.
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