Making Use Of eBPF In The Mainline Linux Kernel

One of the exciting innovations within the Linux kernel in the past few years has been extending the Berkeley Packet Filter (BPF) to become a more generalized in-kernel virtual machine. The eBPF work with recent versions of the Linux kernel allow it to be used by more than just networking so that these programs can be used for tracing, security, and more.

87 Minutes Ago - Linux Kernel - eBPF Linux - Add A Comment

26 August

KDE Connect 1.0 Released For Device/Phone Communication

KDE Connect is the interesting project for integrating notifications and more from your phone or other mobile device onto the KDE desktop. With KDE Connect you can receive smartphone notifications on your computer as well as using your phone as a remote control to the desktop.

26 August 01:26 PM EDT - KDE - KDE Connect 1.0 - 43 Comments
RadeonSI OpenGL Performance Has Evolved A Lot Since Early 2015

Yesterday I posted some benchmarks showing how the AMDGPU / R9 Fury performance has jumped up in the past few months just since the April release of Ubuntu 16.04 LTS. For those wondering how the open-source AMD OpenGL performance has evolved over the longer term, I took a Radeon R9 270X graphics card and re-did tests going back to Ubuntu 15.04 for looking at the RadeonSI Gallium3D performance for the past year and a half.

26 August 11:42 AM EDT - Display Drivers - 7 Comments

25 August

Upcoming Linux Tests With A $300 Broadwell-EP Xeon CPU

Unfortunately Intel Corp hadn't sent over any Broadwell-EP hardware earlier this year when launching these new Xeon E5-2600 V5 server processors nor when it came to the high-end consumer Broadwell-E processors. However, I ended up buying a Xeon E5-2609 v4 Broadwell-EP this week for a new system and will be running a variety of upcoming tests.

25 August 03:33 PM EDT - Intel - Xeon E5-2609 v4 - 13 Comments
Linux 4.8 Intel P-State vs. CPUFreq Scaling Driver/Governor Benchmarks

Given the underlying work that's been happening in the CPUFreq/scheduler area and the introduce of the new Schedutil CPUFreq governor, I decided to run some fresh performance benchmarks of P-State and CPUFreq with the different governor options when testing from a Linux 4.8 Git kernel atop the current Fedora 25 development packages and using a Core i5 Skylake processor.

25 August 11:31 AM EDT - Software - 24 Comments
More Details On PC-BSD's Rebranding As TrueOS

Most Phoronix readers know PC-BSD as the BSD operating system derived from FreeBSD that aims to be user-friendly on the desktop side and they've done a fairly good job at that over the years. However, the OS has been in the process of re-branding itself as TrueOS.

25 August 10:31 AM EDT - BSD - PC-BSD TrueOS - 20 Comments

24 August

EXT4, Btrfs, XFS & NILFS2 HDD File-System Tests On Linux 4.8

Up until running the tests for today's article, I can't remember the last time I touched a hard drive... It's been many months ago at least. Nearly all of our tests at Phoronix are from solid state storage, but I decided to pick up a new HDD for running some Linux file-system tests on a conventional hard drive for those not having an SSD.

24 August 12:03 PM EDT - Storage - 5 Comments

23 August

Nouveau Open-Source NVIDIA Tests On Linux 4.8, Mesa 12.1-dev

I haven't run any Nouveau driver benchmarks recently for looking at the open-source NVIDIA Linux performance since there hasn't been too much progress, particularly when it comes to re-clocking of the desktop GPUs for delivering better performance. However, with all the testing I've been doing on the Radeon side with Linux 4.8 and Mesa 12.1-dev Git, I decided to do a comparison with a few NVIDIA GeForce GPUs under this latest open-source driver stack.

23 August 09:39 AM EDT - Display Drivers - 77 Comments
What's Been Going On With CPUFreq & The Scheduler

As we've been covering the past few kernel cycles, a lot of low-level improvements have been happening to CPUFreq with going through a redesign and more plus the introduction of a new CPUFreq governor. If you're behind on this subject matter, here's some slides from this week's LinuxCon event that covers the changes.

23 August 09:05 AM EDT - Linux Kernel - Schedutil Plus Friends - 21 Comments

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