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

Benchmarking LLVM/Clang 3.2, GCC 4.8, DragonEgg Compilers

Michael Larabel

Published on 9 November 2012
Written by Michael Larabel
Page 2 of 5 - 7 Comments

When starting with HMMer, GCC (both 4.7 and 4.8) are much faster than LLVM or even when using GCC with DragonEgg. It seems LLVM's optimizers are not as good as GCC's for this scientific benchmark. When DragonEgg was used while also enabling the GCC optimizers, the performance returned to nearly matching that of the vanilla GCC.

MrBayes was also the fastest with vanilla GCC over LLVM in any configuration -- Clang or DragonEgg. When attempting to use the GCC and LLVM optimizers with the extra compiler switch, the build failed.

LLVM finally comes out ahead when it comes to the KASUMI test within the Botan crypto library. LLVM with the Clang compiler front-end did the best while GCC with DragonEgg also was close with its performance and well ahead of a plain GNU Compiler Collection setup.

The other Botan crypto tests were mixed for who has the best compiler on the Intel Core i7 Linux setup.

Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  2. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
  3. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
  4. MSAA RadeonSI Gallium3D Performance Preview
Latest Linux News
  1. X.Org Server Shatter Project Fails
  2. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  3. Fedora 21 Alpha Finally Coming Next Week
  4. Ubuntu Touch/Phone Reaches Its First RTM Image
  5. The KMS Mode-Setting Driver Was Imported For X.Org Server 1.17
  6. SNA & UXA Intel Benchmarks With X.Org Server 1.16
  7. Graphics Driver Changes Coming In The Linux 3.18 Kernel
  8. Tropico 5 Being Released For Linux Gamers This Week
  9. Eclipse IDE Starts Firing Up On Wayland's Weston
  10. OpenSUSE Announcement On SUSE's Recent Merger
Latest Forum Discussions
  1. New Group Calls For Boycotting Systemd
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Stop grabbing my keyboard :(
  4. Best Radeon for a Power Mac G5?
  5. New stress testing utility for GPU's
  6. Hd 6850
  7. support for first generation UVD blocks (RV6xx, RS780, RS880 and RV790)
  8. Nvidia joins the ranks of Apple and Microsoft