I wanted a machine that would still fit in the train or plane, for work, but a little larger than my Thinkpad x121e. ) from Hettes, a Dutch shop specializing in hardware with Linux preinstalled (now gone, since they could no longer source hardware without a Windows license). I bought that machine in 2012(. It’s a really nice and slick machine. So I’m really happy to buy a new machine from a Free Software supporting shop in 2017.
As of Linux 4. BPF makes perf tracing programmatic, and takes perf from being a counting & sampling-with-post-processing tracer, to a fully in-kernel programmable tracer. 4, perf has some enhanced BPF support (aka eBPF or just “BPF”), with more in later kernels.
Given that benchmarking the Linux scheduler is a controversial topic and often depends on proprietary tools, we’ll also discuss how to develop fully open source tools and benchmarks for this. The agenda for this year will focus on sharing current workload and benchmark tools and traces and how these can be used to improve the various Linux subsystems, including power management and real time.
I wanted to try to run it on the Linux kernel to see what kind of bugs it would find. Clang-Tidy is a linter from the LLVM ecosystem.
Any such ABI is therefore bound to the instruction set. The term Linux ABI refers to a kernel–user space ABI. The Application binary interface refers to the compiled binaries, in machine code. Defining a useful ABI and keeping it stable is less the responsibility of the Linux kernel developers or of the developers of the GNU C Library, and more the task for Linux distributions and Independent software vendor (ISVs) who wish to sell and provide support for their proprietary software as binaries only for such a single Linux ABI, as opposed to supporting multiple Linux ABIs.
Over the years, there has been a persistent effort to build the Linux kernel using the Clang C compiler that is part of the LLVM project.
It has the potential to take Linux to the next level – not just by creating a faster linux.
04) I was not able to compile the linux kernel (v4. There are just too many assembly level compile errors th. (For amd64 Ubuntu 16.
Either way, you need to know the capabilities of perf_events so you know when to reach for it, whether that means searching for an example command or writing your own. You should also browse examples on other sites (Links). One goal of the examples that follow is just to show you what can be done, to help you learn these capabilities.
So we may soon see a flavour of Debian compiled with clang/llvm. Of the programs (and the Linux kernel is one potential benefiter of LTO).
(On this kernel range, you might find more documentation for tracing these with bcc/eBPF, including using the trace. If you are on an older kernel, say, Linux 4. 9, you can probably get these to work with adjustments (I’ve even hacked them up with ftrace for older kernels), but since they have been in development, I haven’t seen documentation outside of lkml, so you’ll need to figure it out.
Today I spotted a Calamares BoF — not one I scheduled, mind, but apparently people think I should be doing more work. I missed BoFs yesterday that I wanted to go to — I guess I was wrapped up in hacking and talking to people outside of the scheduled activities.