FreeBSD ZFS vs. ZoL Performance, Ubuntu ZFS On Linux Reference

With iX Systems having released new images of FreeBSD reworked with their ZFS On Linux code that is in development to ultimately replace their existing FreeBSD ZFS support derived from the code originally found in the Illumos source tree, here are some fresh benchmarks looking at the FreeBSD 12 performance of ZFS vs. ZoL vs. UFS and compared to Ubuntu Linux on the same system with EXT4 and ZFS.

95 Minutes Ago - Storage - 2 Comments
OpenBSD 6.5 Released With RETGUARD, OpenRSYNC

OpenBSD 6.5 was released today, about one week ahead of schedule for this security-minded BSD operating system. OpenBSD 6.5 is bringing several prominent new features including RETGUARD as its new stack protector and OpenRSYNC as its ISC-licensed in-progress replacement to rsync.

9 Hours Ago - BSD - OpenBSD 6.5 - 2 Comments
NVIDIA Adds Vulkan Support To Nsight Systems

Nsight Systems, NVIDIA's proprietary cross-platform tool providing a timeline view of system resource analysis and other metrics while running GPU compute/graphics workloads, now can handle the Vulkan API.

10 Hours Ago - NVIDIA - Nsight Systems + Vulkan - Add A Comment
OS108 Yields NetBSD Desktop Operating System Powered By MATE

Over the past decade there's been talks on a few occasions about either spinning NetBSD as a desktop platform or offering up various desktop usability improvements to make it easier to use this BSD as a desktop operating system. In 2019 there still isn't a great desktop experience to NetBSD but the new "OS108" is seeking to improve that with a NetBSD OS paired with the MATE desktop environment.

12 Hours Ago - BSD - OS108 - 3 Comments

23 April

RADV Vulkan Driver Lands FreeSync/Adaptive-Sync For Mesa 19.1

While on the kernel-side there has been FreeSync support with the AMDGPU DRM driver since Linux 5.0 and for the OpenGL driver with RadeonSI there has been this functionality in Mesa 19.0 when paired with a supported kernel, the Mesa Radeon Vulkan driver has missed out on this action until now. But landing just in time for the Mesa 19.1 feature freeze is now the FreeSync/Adaptive-Sync enablement for RADV.

23 April 08:24 PM EDT - Radeon - RADV Vulkan - 19 Comments
Intel Iris Gallium3D Picks Up More Game Performance Optimizations For Mesa 19.1

There is just one week to go until the Mesa 19.1 feature freeze and branching for this next quarterly feature update to these open-source OpenGL/Vulkan Linux drivers. Notable this round is the introduction of the Intel "Iris" Gallium3D driver for supporting Broadwell graphics and newer atop this next-gen OpenGL driver ahead of next year's Xe Graphics dGPU launch. With days to go until the Mesa 19.1 feature freeze, more performance optimizations have landed.

23 April 08:11 AM EDT - Intel - Iris Gallium3D - 8 Comments
Intel SPMD Compiler 1.11 Released

Intel continues working on its SPMD compiler as part of their SPIR-V translator running on the CPU and other efforts. ISPC is the Intel SPMD Program Compiler and at the end of last week reached its version 1.11 milestone for this C variant compiler designed for single program, multiple data programming.

23 April 12:17 AM EDT - Intel - ISPC 1.11 - 11 Comments

22 April

Scientific Linux 6/7 Will Remain Supported But The Distribution Is Ending

For those wanting a community-supported, free version in effect of Red Hat Enterprise Linux, the two options have been CentOS with its close relation (and employment) by Red Hat or Scientific Linux that has been maintained Fermilab, CERN, and other research labs. Moving forward, however, these labs are going to be adopting CentOS 8 and they will not be developing a new version of Scientific Linux based on the upcoming RHEL8.

22 April 11:31 AM EDT - Red Hat - No Scientific Linux 8 - 27 Comments
Dropped Linux Kernel Drivers Occasionally See Revival - FDOMAIN Gets Second Chance

When drivers get dropped from the Linux kernel it's generally due to hardware being no one cares about anymore that hasn't been produced in many years and the code often falls into disrepair to the point that the only logical way forward is dropping the driver. That happened last year to the "FDOMAIN" driver but as does happen every so often (albeit rare) thanks to the code being still obtainable through Git and the nature of open-source, interested parties can step up and revive the code.

22 April 10:45 AM EDT - Hardware - FDOMAIN SCSI - 2 Comments

21 April

Oracle's Ksplice Live Kernel Patching Picks Up Known Exploit Detection

One of the areas of Oracle Linux and its "Unbreakable Enterprise Kernel" that the company continues investing in and differentiating it from upstream RHEL and alternatives is around Ksplice as their means of live kernel patching while Red Hat continues with Kpatch and SUSE with kGraft.

21 April 06:57 AM EDT - Oracle - Ksplice Known Exploit Detection - 31 Comments
The NULL TTY Driver Is Coming To The Linux 5.2 Kernel

While initially some questions were raised over the usefulness and practicality of this driver when it was first proposed on the kernel mailing list, the NULL TTY driver is set to make its maiden voyage to mainline with the upcoming Linux 5.2 kernel cycle.

21 April 12:00 AM EDT - Linux Kernel - NULL TTY Driver - 3 Comments

20 April

JITLink Lands In LLVM 9.0

Being merged into the LLVM code-base this Saturday is JITLink, a just-in-time linker for parsing object files and letting their contents run in a target process.

20 April 03:20 PM EDT - LLVM - LLVM JITLink - Add A Comment
In 2019, Most Linux Distributions Still Aren't Restricting Dmesg Access

Going back to the late Linux 2.6 kernel days has been the CONFIG_DMESG_RESTRICT (or for the past number of years, renamed to CONFIG_SECURITY_DMESG_RESTRICT) Kconfig option to restrict access to dmesg in the name of security and not allowing unprivileged users from accessing this system log. While it's been brought up from time to time, Linux distributions are still generally allowing any user access to dmesg even though it may contain information that could help bad actors exploit the system.

20 April 06:37 AM EDT - Linux Security - Dmesg To All - 77 Comments

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