BLOG ESPECIALIZADO NO MUNDO LINUX. Blog de Linux com vídeo aulas, notícias do mundo Linux e do Software Livre.
Is Linux 7.0 stable release at risk? Linus Torvalds sounds the alarm on unusually large -rc3 kernel. Dive into critical performance regressions, new AMD/Intel hardware enablement, and security features like IBPB-On-Entry for EPYC "Turin" affecting enterprise Linux 7.0 adoption for Ubuntu 26.04.
The latest Linux 7.0 x86/urgent patches deliver critical security enhancements for AMD EPYC Zen 5 with IBPB-on-Entry for SEV-SNP VMs, alongside essential topology fixes for Intel Xeon Granite Rapids. Discover how these updates fortify enterprise server infrastructure against speculative execution threats and ensure hardware reliability. We break down the technical implications for cloud architects and sysadmins.
A critical analysis of the severe 64% performance regression discovered in the Linux 7.0 kernel's SLUB allocator. Explore the technical root cause identified by Red Hat's Ming Lei, the fix engineered by SUSE's Vlastimil Babka, and what this means for enterprise workload stability ahead of the -rc3 release. Essential reading for kernel engineers, sysadmins, and DevOps professionals.
A deep dive into the latest Linux kernel patches queued for Linux 7.1, enhancing AMD IBS for Zen 6 processors. Discover how new features like RIP filtering and remote socket indicators will revolutionize performance profiling for EPYC "Venice" and beyond. Essential reading for systems engineers and DevOps professionals.
Dive into the comprehensive analysis of Linux 7.0-rc1. We dissect the new kernel's transformative features, from Intel Nova Lake and AMD Zen 6 enablement to critical file-system performance gains for PostgreSQL and exFAT. Explore the implications for Ubuntu 26.04 LTS, Fedora 44, and the enterprise infrastructure landscape.
Critical analysis of SUSE libvirt vulnerability CVE-2025-12748, detailing patch SUSE-2026-0375-1 implications for enterprise virtualization security, hypervisor management, and cloud infrastructure defense strategies for system administrators.
Discover how Linux kernel 6.18's "sheaves" per-CPU caching layer is evolving in Linux 7.0 to replace traditional slab allocators. Explore the performance implications, code simplification benefits, and insights from maintainer Vlastimil Babka on this pivotal systems engineering advancement for enterprise computing and high-performance workloads.
Linux 7.0 aims to replace traditional per-CPU partial slab caches with the new "sheaves" caching layer, potentially boosting kernel memory management performance. Learn about the technical implementation, benefits for PREEMPT_RT, and the roadmap from SUSE's SLAB maintainer Vlastimil Babka.
Explore Tencent's groundbreaking Linux kernel patches delivering 30% swap metadata memory savings, up to 2.4% faster performance, and scalable enhancements for enterprise server optimization and high-performance computing. Learn about cutting-edge systems programming innovations.
Explore AMD’s next-gen EPYC “Venice” server features: Global Bandwidth Enforcement (GLBE), Global Slow Bandwidth Enforcement (GLSBE), & Privilege Level Zero Association (PLZA). Dive into Linux kernel integration, performance optimization, and enterprise data center implications. Learn how these advancements redefine CPU resource control. Meta description length:
Intel Linux engineers boost NVMe storage performance by up to 15% with a new CPU cluster-aware patch for the Linux kernel, addressing IRQ affinity issues on high-core-count Xeon servers. Discover how this kernel-level optimization enhances I/O throughput for data centers and enterprise storage solutions.
Discover how the new cake_mq Linux kernel scheduler enables multi-queue aware traffic shaping, dramatically improving network performance for data centers and high-speed infrastructure. Learn about its architecture, benefits over sch_cake, and implementation insights from Red Hat engineers. This comprehensive guide covers everything from technical configuration to real-world deployment scenarios.
Discover how Google's BPF CCX scheduler leverages eBPF for advanced thread placement on AMD Zen CPUs, boosting data center & desktop performance. Explore benchmarks, technical insights from LPC 2025, and the future of Linux high-performance computing. Learn more about this innovative approach to core complex optimization.
A critical Linux kernel performance patch targets a slab memory allocation regression in Linux 6.18 LTS and 6.19, slashing kmem_cache_destroy() latency by 45% with optimized RCU sheaf flushing. Learn how the kvfree_rcu_barrier_on_cache() fix resolves major regressions for module loading and graphics performance.
Discover how Linux 6.19's groundbreaking DMA-BUF support for VFIO PCI, led by NVIDIA, revolutionizes PCIe peer-to-peer (P2P) DMA. This deep dive covers virtualization, GPU passthrough, and high-performance computing (HPC) use cases for data centers, boosting RDMA and NVMe-oF performance. Learn about the kernel development impact on enterprise hardware.
Explore Cloud Hypervisor 48.0's major updates: massive 8,192 vCPU scaling for x86_64/KVM, experimental fw_cfg & ivshmem, RISC-V firmware boot, and a groundbreaking policy banning AI-generated code. Download now on GitHub.
Linux 6.17 MM breakthroughs: 37% faster mremap, DAMON_STAT for production monitoring, 3x mprotect speed, per-VMA locks. Enterprise-grade NUMA/proactive reclaim optimizations. Analysis of Andrew Morton’s pull request.
Discover how Linux 6.17's key SMP optimization, driven by NVIDIA, enhances HPC & server performance. Learn how smarter NUMA-aware CPU selection in smp_call_function_any() reduces latency & boosts efficiency. Essential reading for Linux sysadmins & performance engineers. Explore the technical details & implications.
Linux 6.17 ARM64 updates feature BRBE profiling for low-overhead tracing, BBML2 TLBI optimizations, HiSilicon PMU support & MTE security enhancements. Boost AArch64 performance & debugging.
