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index.feed.received.today — 6 mai 2025Phoronix

LVFS/Fwupd Talked Up For Linux Servers & Being What Customers Want

6 mai 2025 à 12:25
Lead LVFS/Fwupd developer Richard Hughes of Red Hat was at the PremDay on-premise computing conference in Paris to talk up this open-source firmware updating solution and being what customers want. The presentation video and slides are now available for those needing additional material in helping sell your organization on the benefits of LVFS/Fwupd...
index.feed.received.yesterday — 5 mai 2025Phoronix

21-Way Intel Core / AMD Ryzen Linux Laptop Comparison On Ubuntu 25.04

5 mai 2025 à 16:32
As part of fresh re-testing of existing laptops on-hand given the recent release of Ubuntu 25.04 and then also recent Linux reviews of some interesting models like the Framework Laptop 13 with AMD Strix Point and the Lenovo ThinkPad X1 Carbon Gen 13 Aura Edition, I have been running a lot of Linux laptop benchmarks the past few weeks. I ended up taking things a bit further after those reviews and have now extended it to a 21-way laptop comparison of AMD Ryzen and Intel Core SoCs from the past few generations in looking at their performance on Ubuntu 25.04 across more than 200 benchmarks.

New Patches Aim To Modernize The Default Linux x86 Kernel Configuration

5 mai 2025 à 14:43
Longtime Linux kernel developer Ingo Molnar sent out a patch series this morning to enable additional kernel features by default for the Linux default configuration "defconfig" on x86-based kernels. The defconfig improvements aim to reflect modern Linux x86 kernel use with various features commonly being enabled by distribution vendor kernels and related improvements...

ARM64 Expected To Support Lazy Preemption "PREEMPT_LAZY" With Linux 6.16

5 mai 2025 à 12:15
Introduced last year for Linux 6.13 was lazy preemption "PREEMPT_LAZY" for a preemption model that is similar to full preemption but less eager to preempt normal scheduler tasks to provide some of the performance benefits found with voluntary preemption. After initially being supported for x86_64 and RISC-V, it looks like Linux 6.16 will support lazy preemption on ARM64 (AArch64)...
index.feed.received.before_yesterdayPhoronix

Bcachefs Patches Aim For Faster Snapshot Deletion But With Another On-Disk Format Update

4 mai 2025 à 12:27
In addition to Bcachefs working on better self-healing / automatic repair capabilities, this modern copy-on-write file-system is also working on faster snapshot deletion performance. A patch series was posted this week to speed-up the deletion of snapshots though it comes with another bump to the on-disk format of the file-system...

Rust Use Within The QEMU Emulator Shaping Up Well

3 mai 2025 à 22:50
The QEMU processor emulator that plays an important role in the open-source Linux virtualization stack has been seeing experimental support for the Rust programming language developing within its codebase. There continues to be good progress being made on this Rust support as more QEMU components get ported over to this programming language for memory safety and other security benefits...

NVIDIA Encouraging CUDA Users To Upgrade From Maxwell / Pascal / Volta

3 mai 2025 à 12:24
NVIDIA CUDA 12.9 is now available as the newest minor feature update to NVIDIA's GPU compute stack. CUDA 12.9 adds compiler targetr support for SM 10.3 and 12.1, compiler support for "family-specific architectures", new NVML counters being exposed, and other minor feature improvements. The NVIDIA CUDA 12.9 documentation is also now more verbose in encouraging anyone still relying on Maxwell, Pascal, and Volta hardware to upgrade...

Continued Work On Attack Vector Controls Ahead Of Linux 6.16

2 mai 2025 à 18:35
Going back to last year an AMD engineer has been pursuing "Attack Vecotr Controls" to rethink CPU security mitigation handling. Attack Vector Controls aims to make it easier to manage CPU security mitigation settings by focusing on the class/scope of vulnerabilities rather than managing the mitigations at an individual level. It's looking like the initial attack vectors control code will be ready for mainlining in the upcoming Linux 6.16 cycle but stopping short of the complete implementation...

Full Disk Encryption Performance With Ubuntu 25.04 + Framework Laptop 13 Strix Point

2 mai 2025 à 14:30
For anyone storing personal information on their laptops especially, I definitely recommend making use of Linux LUKS-based full disk encryption capabilities. I've been recommending going with the full disk encryption capabilities for nearly two decades to help protect personal data in case your laptop is lost or stolen. The performance implications of using full disk encryption have went down over time and in most real-world workloads you'll see minimal to any difference out of it. As it's been a while since running any reference benchmarks looking at no disk encryption to full disk encryption, here are some results on the newly-released Ubuntu 25.04 paired with the Framework Laptop 13 powered by AMD Ryzen AI 300 "Strix Point".

Linux 6.16 Will Begin Reporting The Cause Of Your AMD Zen System Being Reset/Rebooted

2 mai 2025 à 12:34
In the event of your AMD Ryzen or EPYC system being randomly reset or unexpectedly rebooted under Linux, the Linux kernel with the upcoming Linux 6.16 cycle is gaining the ability to report the reason for that reset. This is making use of a technical capability found going back to the AMD Zen 1 processors that the Linux kernel is now tapping into for reporting the cause of any previous system reset...

Redis 8.0 Released: Now Tri-Licensed With AGPLv3

1 mai 2025 à 18:23
Last year Redis made the much criticized move to Redis Source Available License v2 and Server Side Public License v1 (SSPL) licensing. The move was widely panned by the open-source community and led to the Linux Foundation forking it as Valkey and also other forks like Redict coming about. In the months since many Linux distributions have switched from Redis to Valkey. Now Redis Labs announced today that with the Redis 8.0 release, they are adding AGPLv3 to the licensing mix...

GCC 15 Compiler Demonstrating Measurable Performance Gains For AMD EPYC Turin

1 mai 2025 à 17:00
With the recently released GCC 15 (GCC 15.1) compiler besides adding new language features, enhancements to help developers in debugging build failures, and other refinements, there is the never-ending quest of compiler performance optimizations. Since the recent GCC 15.1 release candidate I've been testing this annual compiler feature release on more hardware, including several AMD 5th Gen EPYC "Turin" servers to great success compared to the prior GCC 14 stable series.

Patch Posted For Addressing The AMD CPU Performance Regression On Linux 6.15

1 mai 2025 à 13:50
As a follow-up to the Phoronix article a few days ago entitled A Linux 6.15 Performance Regression Hits Modern AMD CPUs, there continues to be activity to address this issue with the performance impact catching the upstream kernel developers off guard. I've tested a patch now that does address the issue while still carrying the KVM protections desired...
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