Open-source News

GCC 10 vs. Clang 10 Compiler Performance On AMD Zen 2 + Intel Cascade Lake

Phoronix - Tue, 05/19/2020 - 22:40
We delivered many benchmarks of Clang 10.0 on various CPUs following that updated LLVM compiler stack release earlier this year. With GCC 10 released earlier this month, we have begun our benchmarking of this annual feature release to the GNU Compiler Collection. First up is a look at the GCC 9 vs. GCC 10 vs. LLVM Clang 10 compiler performance on AMD Zen 2 and Intel Cascade Lake systems.

SD 8.0 Specification To Allow 4GB/s Transfer Rates By Leveraging PCIe 4.0

Phoronix - Tue, 05/19/2020 - 22:28
The SD 8.0 specification was announced today for SD Express memory cards to allow up to 4GB/s transfer rates by building off the PCIe 4.0 architecture...

Linux KVM Virtualization Had Mistakenly Been Applying L1TF Workaround To Unaffected CPUs

Phoronix - Tue, 05/19/2020 - 20:09
The all-important Linux Kernel-based Virtual Machine (KVM) code for open-source virtualization had mistakenly been applying its L1TF workaround for unaffected CPUs -- namely AMD EPYC CPUs -- for the past several months until the issue was uncovered this week...

Clang 11 Changes -O To Match GCC Behavior

Phoronix - Tue, 05/19/2020 - 19:08
Clang 11.0 has changed its "-O" optimization flag to match the defaults of GCC...

AOMedia AV1 2.0 Codec Library Released With Many Improvements

Phoronix - Tue, 05/19/2020 - 18:53
Version 2.0 of the libaom AOMedia AV1 video encoder / video codec SDK library is now available as the first major update in nearly two years...

Linux Kernel Seeing Workaround Revived For Buggy Micron NAND Block Erase Behavior

Phoronix - Tue, 05/19/2020 - 18:40
A new patch series has been revived from work originally published by Micron back in 2018 for dealing with the behavior on their planar 2D NAND devices where in rare cases when issuing block erase commands, the flash block might not actually be erased and this could lead to further problems down the road when touching said block...

24 Linux desktops you need to try

opensource.com - Tue, 05/19/2020 - 15:02

One of the great strengths of the Linux desktop is the choice it affords its users. If you don't like your application menu in the lower left of your screen, you can move it. If you don't like the way your file manager organizes your documents, you can use a different one. Admittedly, however, that can be confusing for new users who aren't used to having a say in how they use their computers. If you're looking at installing Linux, one of the choices you're going to have to make is which desktop you want to use, and the best way to do that is to try a few different ones until you find the on


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An open source HTTP router to increase your network visibility

opensource.com - Tue, 05/19/2020 - 15:01

In my previous article, I introduced Skipper, an open source HTTP router and reverse proxy for service composition. This article focuses on how Skipper increases network visibility and describes its advantages for both developers of scalable applications and operators of the infrastructure they run on.


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