Some link-time optimization compiler benchmarks by Michael Larabel for Phoronix.com of GCC 4.8.2 and 4.9.0 RC1. The Link-time optimization results with -flto didn't turn out to be as exciting as anticipated, so here they are for this short future article on phoronix. Benchmarks from an Intel Core i7 Haswell running Ubuntu Linux.
Compiler Notes: --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: ECS NVIDIA GeForce GTX 460 768MB (675/1804MHz), Audio: Realtek ALC1150, Monitor: Samsung SyncMaster, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-22-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.0, Display Driver: NVIDIA 337.12, OpenGL: 4.3.0, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 2560x1600
OS: Ubuntu 14.04, Kernel: 3.13.0-22-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.0, Display Driver: NVIDIA 337.12, OpenGL: 4.3.0, Compiler: GCC 4.9.0 20140411, File-System: ext4, Screen Resolution: 2560x1600
LAME is an MP3 encoder licensed under the LGPL. This test measures the time required to encode a WAV file to MP3 format. Learn more via the OpenBenchmarking.org test page.
This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests to stress the system's CPU. Learn more via the OpenBenchmarking.org test page.
This test runs the U.S. Department of Energy's Ames Laboratory Hierarchical INTegration (HINT) benchmark. Learn more via the OpenBenchmarking.org test page.
This is a test of ab, which is the Apache benchmark program. This test profile measures how many requests per second a given system can sustain when carrying out 1,000,000 requests with 100 requests being carried out concurrently. Learn more via the OpenBenchmarking.org test page.
The Himeno benchmark is a linear solver of pressure Poisson using a point-Jacobi method. Learn more via the OpenBenchmarking.org test page.
This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests to stress the system's CPU. Learn more via the OpenBenchmarking.org test page.
This is a test of C-Ray, a simple raytracer designed to test the floating-point CPU performance. This test is multi-threaded (16 threads per core), will shoot 8 rays per pixel for anti-aliasing, and will generate a 1600 x 1200 image. Learn more via the OpenBenchmarking.org test page.
This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests to stress the system's CPU. Learn more via the OpenBenchmarking.org test page.
This is a test of a DUNE (Distributed and Unified Numerics Environment) module called OPM Benchmarks from the Open Porous Media project. Open Porous Media is a set of open-source tools concerning simulation of flow and transport of fluids in porous media. Learn more via the OpenBenchmarking.org test page.
Smallpt is a C++ global illumination renderer written in less than 100 lines of code. Global illumination is done via unbiased Monte Carlo path tracing and there is multi-threading support via the OpenMP library. Learn more via the OpenBenchmarking.org test page.
Compiler Notes: --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Testing initiated at 12 April 2014 10:03 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: ECS NVIDIA GeForce GTX 460 768MB (675/1804MHz), Audio: Realtek ALC1150, Monitor: Samsung SyncMaster, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-22-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.0, Display Driver: NVIDIA 337.12, OpenGL: 4.3.0, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 2560x1600
Compiler Notes: --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Testing initiated at 12 April 2014 12:47 by user pts.
Compiler Notes: --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Testing initiated at 12 April 2014 15:27 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: ECS NVIDIA GeForce GTX 460 768MB (675/1804MHz), Audio: Realtek ALC1150, Monitor: Samsung SyncMaster, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-22-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.0, Display Driver: NVIDIA 337.12, OpenGL: 4.3.0, Compiler: GCC 4.9.0 20140411, File-System: ext4, Screen Resolution: 2560x1600
Compiler Notes: --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Testing initiated at 12 April 2014 18:34 by user pts.