Language Selection

English French German Italian Portuguese Spanish

Experts work to aid compiler behind open source

Filed under

Lead programmer Mark Mitchell released GCC 4.0 on April 22. It includes a new optimization framework designed to improve the process of translating source code written by humans into binary code a computer understands.

The new version is still very much a work in progress, though, and it will take time for a clear performance advantage to emerge, Mitchell said in an interview. "It's got all this new optimization infrastructure. All that new infrastructure hasn't been as carefully tuned as much as the old one was," Mitchell said.

One of the first rocky moments of the GCC 4.0 debut came with KDE, the graphical interface software widely used on Linux computers. The package wouldn't compile with GCC 4.0, and KDE organizers blacklisted GCC 4.0 for the time being.

The bug that hampered KDE has been fixed now and should be available soon, Mitchell said. "We'll probably do a 4.0.1 refresh release earlier than planned," within a month rather than two months as originally forecast, he said.

GCC is used to produce almost all programs in the free and open-source software movements, so a little improvement or degradation in the compiler can propagate to thousands of projects.

Another rocky patch for GCC 4.0 was a review published this week by programmer and author Scott Ladd. He compared GCC 4.0 to its predecessor, GCC 3.4.3, and found that the new version often took longer to produce code and that the code was bulkier and ran more slowly.

"Is GCC 4.0 better than its predecessors?

Full Story.

More in Tux Machines

LuxMark OpenCL Performance On Windows vs. Linux With Radeon/NVIDIA

When carrying out this week's Windows vs. Linux gaming tests with AMD Radeon and NVIDIA GeForce GPUs on the latest drivers, I also took the opportunity to run some fresh OpenCL benchmarks on Windows and Linux with the competing GPU vendors. I was particularly interested in running this test given the maturing state of ROCm on Linux for providing a new and modern compute stack... That coming with Linux 4.17+ will even begin to work from a mainline Linux kernel. Albeit for this round of testing was using AMD/GPUOpen's stock ROCm Ubuntu packages for 16.04 LTS as outlined on their GitHub page. Read more

Top Linux tools for writers

If you've read my article about how I switched to Linux, then you know that I’m a superuser. I also stated that I’m not an “expert” on anything. That’s still fair to say. But I have learned many helpful things over the last several years, and I'd like to pass these tips along to other new Linux users. Read more

i.MX6 ULL module runs Linux with real-time patch

Artila’s “M-X6ULL” COM runs Linux 4.14 with the PREEMPT_RT patch on an 800MHz i.MX6 ULL, and offers dual LAN controllers, 4GB eMMC or an optional microSD slot, and an optional carrier board. The M-X6ULL, which follows other Artila i.MX based modules such as the i.MX537 based M-5360A, measures only 68 x 43mm. Still, that’s hardly a record for modules featuring NXP’s Linux-driven, power-sipping i.MX6 ULL. MYIR’s MYC-Y6ULX measures 39 x 37mm. Read more

First Zynq UltraScale+ based 96Boards SBC runs PetaLinux

Avnet has launched its open-spec Ultra96 96Boards CE SBC for $249, featuring a Zynq UltraScale+ ARM/FPGA SoC, WiFi, BT, 4x USB, a mini-DisplayPort, and support for Linaro’s Avnet’s Ultra96 (AES-ULTRA96-G) was unveiled earlier this week as part of Linaro’s joint announcement of its program for unleashing the potential of artificial intelligence technology on selected Arm SoCs. Now this Zynq UltraScale+ based, 96Boards CE standard (85 x 54mm) SBC is available for pre-order at $249 with shipments starting in May. Read more