Svobodný software

GMP (GNU MP nebo též libgmp) je otevřená knihovna pro práci s čísly v libovolně přesné aritmetice. Ve druhém článku se podíváme na umocňování, výpočet modulu nebo různé funkce z teorie čísel.

Budeme se zabývat velmi často řešenou úlohou: analýzou, zda je předložený text spam nebo se jedná o jiný typ textu (ham). Při vektorizaci textu využijeme takzvané n-gramy.

Sent out today were the big set of PCI subsystem updates ready to be merged for the Linux 6.13 kernel. Most notable of the PCI updates is PCI Express TLP Processing Hints (TPH) with that kernel support worked on by AMD engineers as part of one of the new hardware features found with the AMD EPYC 9005 server processors. Over on the Intel side is the new PCIe cooling driver and other changes...

The KVM changes were merged yesterday for Linux 6.13 in further enhancing the open-source virtualization stack...

The GCC 15 code compiler that is releasing as stable in the early months of 2025 has removed all support for the Altera Nios II CPU target...

With my recent AMD EPYC 9005 1P 4U server build using a Supermicro H13SSL-N motherboard, SilverStone kindly sent over their two Socket SP5 cooling options for AMD EPYC processors: the XE04-SP5 4U-compatible heatsink fan and then the XE360-SP5 AIO liquid cooler with a triple 120mm fan radiator to allow effectively cooling up to the new 400~500 Watt EPYC Turin processors. Here is a look at these two high-end AMD EPYC cooling options for those carrying out 4U EPYC 9004/9005 server builds along with thermal and performance benchmark results.

The FUSE feature enhancements were submitted today for the Linux 6.13 kernel as part of improving the file-system in user-space capabilities...

Huawei engineer Zhang Yi posted a set of nine patches today for enabling large folio support for regular files with the EXT4 file-system. These patches enable large folios for EXT4 on regular files except when using FSVERITY, FSCRYPT, or the journaled data mode. Long story short, these large folio patches can deliver some nice performance gains for both reads and writes...

Sent out last night for the ongoing Linux 6.13 merge window were all of the perf tool changes for the wonderful "perf" subsystem for performance profiling and the like. In addition to adding the HWMON PMU to "perf stat", leader sampling for inherited task events, and various other tooling improvements, there are also vendor event updates. Most notable with the updated CPU vendor events are new AMD Zen 5 processor events...

Complementing the Raspberry Pi Pico 2 that launched this summer, the Raspberry Pi Pico 2 W was announced today for $7 as the wireless-enabled variant of this small microcontroller board...

Richard Hughes of Red Hat has released Fwupd 2.0.2 as the newest update to this open-source firmware updating solution for Linux systems...

V tomto pravidelném vydání pondělních Postřehů z bezpečnosti se podíváme na využití AI severokorejskými útočníky, pročínskou vlivovou síť podvodných webů nebo nové malwary z arzenálu ruských skupin.

Projekt quBSD je nadstavba FreeBSD jails, který implementuje schéma inspirované Qubes. Po 22 letech vývoje byla vydána verze FreeCAD 1.0. Tuxedo mění licenci pro moduly linuxového jádra z GPL-3.0+ na GPL-2.0+.

The AMDXDNA kernel driver for Linux systems that was made open-source in January for supporting the Ryzen AI NPU on laptop SoCs going back to the Ryzen 7040 "Phoenix" series is now one step away from appearing in the mainline Linux kernel in the near future...

Earlier this week was the main power management updates for Linux 6.13 that included switching AMD EPYC Turin to using the amd_pstate driver on supported systems. Sent out this weekend was another set of power management updates that also includes a notable addition: the virtual CPUFreq driver...

Following all of the MM patches earlier this week sent in by Andrew Morton, on Sunday morning he sent out all of the non-MM patches that he manages for the Linux kernel. Notable for Linux 6.13 with this pull request is presenting the hung task counter as well as finishing off the folio conversion in the NILFS2 code...

Týden v KDE: počet cyklů nabití konečně v Plasmě, DAW Zrythm v nové verzi 1.0 stále s GTK, jádro Linux 6.13 bez novinek v Bcachefs, vývojová verze Wine 9.22 jako poslední před Wine 10.0-rc1.

Ahead of FreeBSD 14.2 hopefully releasing in just over one week, FreeBSD 14.2-RC1 is out this weekend as the last planned development release for testing ahead of that much anticipated point release...

A Microsoft Research project that was quietly announced a few years ago to some fanfare but not hearing much about since has been Demikernel as their library OS architecture for kernel-bypass I/O. A Phoronix reader brought up Demikernel this week and while it hasn't been talked about much in recent years it does remain under active development with the most recent commits as of hours ago...

IBM isn't formally releasing Power11 processors until next year, but their software engineers continue being quite busy preparing the Linux kernel and other open-source software for Power11. The newest on the kernel side is enabling support for KVM nested guests on IBM Power11 platforms...