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 Linux Hardware Reviews
  1. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  2. Intel Pentium G3258 On Linux
  3. SilverStone Precision PS10
  4. ASRock Z97 Extreme6
Latest Linux Articles
  1. KVM Benchmarks On Ubuntu 14.10
  2. X.Org Server 1.16 Officially Released With Terrific Features
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
Latest Linux News
  1. Unigine Develops City Traffic System, A Driving Simulator
  2. Intel 3.0 X.Org Driver Still Baking, New Development Release
  3. Eric Anholt Makes Progress With Broadcom VC4 Graphics Driver
  4. Intel Is Getting Very Close To OpenGL 4.0/4.1/4.2 Mesa Support
  5. Valve Is Still Hiring For SteamOS, Linux Work
  6. Users Warned About Possible Regressions With DRI3
  7. GNOME Shell Gets Wayland HiDPI Fonts, Mutter Gets Touch Gestures
  8. BPTC Texture Compression Comes To Nouveau After Intel's Work
  9. Development Continues For Supporting EXT4 On NVDIMMs
  10. Libinput 0.5 Improves Pointer Acceleration, Adds A Configuration API
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Radeon related kernel bug??
  3. AMD Publishes Open-Source Linux HSA Kernel Driver
  4. Next-Gen OpenGL To Be Announced Next Month
  5. Open-Source Radeon Performance Boosted By Linux 3.16
  6. Remote gui not accessible in Phoronix Test Suite 5.2
  7. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  8. In Road To Qt, Audacious Switches From GTK3 Back To GTK2