We plan to build a suite of compiler-based dynamic instrumentation tools for analyzing targeted performance problems. These tools will all live under a new "EfficiencySanitizer" (or "esan") sanitizer umbrella, as they will share significant portions of their implementations.
Derek Bruening of Google has announced the company's interest in creating an "Efficiency Sanitizer" for LLVM/Clang for analyzing targeted performance problems.
Worked on Google and other compoanies have been Address Sanitizer, Memory Sanitizer, Thread Sanitizer, Leak Sanitizer, Data Flow Sanitizer, and other sanitizers found in LLVM/Clang some of which have also been ported to GCC. These sanitizers have been incredibly helpful for developers in catching various problems within program code-bases, including many security issues. The latest focus being pursued by Google's compiler engineers is on an Efficiency Sanitizer.
The most significant changes in this release are a rewrite of the webGUI utilizing Bootstrap, and the underlying system, including the base system and kernel, being converted entirely to FreeBSD pkg. The pkg conversion enables us to update pieces of the system individually going forward, rather than the monolithic updates of the past. The webGUI rewrite brings a new responsive look and feel to pfSense requiring a minimum of resizing or scrolling on a wide range of devices from desktop to mobile phones.
PfSense 2.3 was released today as the newest version of this popular FreeBSD-based firewall/router OS appliance software.
The pfSense 2.3 release has a rewritten web GUI that's now making use of Bootstrap to provide a clean and responsive experience. The pfSense 2.3 release also converts the underlying system now to completely using FreeBSD's pkg for package management, and there are various other underlying updates.
Electric Sheep Fencing LLC., through Chris Buechler, today, April 12, 2016, has had the great pleasure of announcing the release of the stable pfSense 2.3 BSD-based firewall operating system.
There are a number of Unix-like operating systems based on or descended from the Berkeley Software Distribution (BSD) series of Unix variants. The three most notable descendants in current use are FreeBSD, OpenBSD, and NetBSD, which are all derived from 386BSD and 4.4BSD-Lite, by various routes. Both NetBSD and FreeBSD started life in 1993, initially derived from 386BSD, but in 1994 migrating to a 4.4BSD-Lite code base. OpenBSD was forked in 1995 from NetBSD. Other notable derivatives include DragonFly BSD, which was forked from FreeBSD 4.8, and Apple Inc.’s iOS and OS X, with its Darwin base including a large amount of code derived from FreeBSD.
With FreeBSD 10.3 having been released followed by the desktop-oriented PC-BSD 10.3 release that's running rather nicely, I decided to run some open-source performance benchmarks atop PC-BSD 10.3 x64 compared to various Linux distributions.
Originally I also aimed to run some PC-BSD vs. Linux gaming tests using the updated Linux binary compatibility layer in FreeBSD 10.3's kernel, but sadly, that didn't pan out. As noted in the aforelinked article, I've been running into a variety of issues that made my usual test candidates not run on PC-BSD 10.3 with either the x86 or x86_64 Linux binaries. If you want to see my old tests, there is FreeBSD: A Faster Platform For Linux Gaming Than Linux? from a few years ago.
For those curious about the state of C++11 / C++14 / C++1z features in LLVM's Clang compiler, engineers from Google and Qualcomm have a brief yet nice overview of the recent additions to the C++ programming language and the current support state within Clang.
Last year LLVM developers made significant progress on developing a new ELF linker for Linux/Unix-like systems. Since then, this high-performance linker from LLD (dubbed "LLD") has continued maturing and gaining additional functionality.
FreeBSD 10.3 is now out in stable release form.
FreeBSD 10.3 offers improvements to its UEFI boot loader support, support for high availability setups with the CAM Target Layout, much improved support to FreeBSD's Linux binary compatibility layer, support with the Linux compatibility layer for running 64-bit applications on x86_64, initial support for reroot support in the reboot utility, GNOME 3.16.2 is now packaged, and there are many other improvements.