1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Firefox 18 Beta Brings The IonMonkey Engine

Mozilla

Published on 27 November 2012 04:11 AM EST
Written by Michael Larabel in Mozilla
10 Comments

Mozilla's Firefox 18 Beta web-browser released on Monday. New to this development release that's coming just one week after Firefox 17 is integrating the new IonMonkey JavaScript engine.

Mozilla's IonMonkey JavaScript engine is a Just-In-Time (JIT) compiler that provides a new compiler that is more organized and has explicit data structures of advanced compilers. IonMonkey also lays down work for further optimizations and experimentation.

IonMonkey works by translating the JavaScript code into an intermediate representation (IR), running various algorithms on the generated IR for carrying out optimizations, and then translating the optimized IR into machine code for execution. The current optimized machine code back-ends include support for ARMv7, x86, and x86_64. This is a much cleaner model is similar in nature to LLVM while Mozilla's current J├ĄgerMonkey and former TraceMonkey engines didn't go through this IR layer.

Among the current IonMonkey optimization passes on the IR are for dead code elimination, range analysis, a register allocation scheme similar to the HotSpot JVM, redundant code elimination, and the moving of instructions outside of loops where possible.

Benchmarks already of this new Firefox 18 Beta show its JavaScript to be much faster than Firefox 17 and its predecessors. More IonMonkey details are available from the Mozilla Wiki.

Other Firefox 18 Beta features include early WebRTC support, a built-in PDF viewer, performance improvements, CSS3 Flexbox support, support for @supports, W3C touch events, and much more.

The Firefox 18 Beta for all major platforms is available from Mozilla.org.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. NVIDIA's Latest Maxwell Line-Up Against AMD With Catalyst On Linux
  2. Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell
  3. AMD FX-8320E Performance On Linux
  4. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
  5. Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux
  6. Linux Benchmarks Of NVIDIA's Early 2015 GeForce Line-Up
Latest Linux News
  1. NVIDIA Tegra DRM Driver Supports Atomic Mode-Setting In Linux 3.20
  2. Linux "GHOST" Vulnerability Hits Glibc Systems
  3. Linux Game Publishing Remains Offline, Three Years After The CEO Shakeup
  4. PlayStation 4 System Compiler Support Landing In LLVM
  5. Now-Closed KDE Vulnerabilities Remind Us X11 Screen Locks / Screensavers Are Insecure
  6. Vivaldi: A New Chromium-Powered, Multi-Platform Browser
  7. KDE Plasma 5.2 Officially Released
  8. Intel Broadwell On Linux Has Working OpenCL 1.2, VP8 Video Acceleration
  9. GParted 0.21 Brings ReFS Detection, EXT4 For RHEL5, Reiser4 For Linux 3.x
  10. Wine Staging Update Has Better CUDA Support, Driver Testing Framework
Most Viewed News This Week
  1. Windows 10 To Be A Free Upgrade: What Linux Users Need To Know
  2. LibreOffice 4.4 Is Coming Soon With New Features
  3. TraceFS: The Newest Linux File-System
  4. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  5. Interstellar Marines On Linux With Catalyst: Bull S*#@
  6. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  7. Faster VP9 Decoding Is On The Horizon
  8. Linux Users Upset By Chromium's Busted HiDPI Support