Linux began in 1991 as a personal project by Finnish student Linus Torvalds: to create a new free operating system kernel. The resulting Linux kernel has been marked by constant growth throughout its history. Since the initial release of its source code in 1991, it has grown from a small number of C files under a license prohibiting commercial distribution to the 4.15 version in 2018 with more than 23.3 million lines of source code, not counting comments, under the GNU General Public License v2.
You might be wondering “Who created Linux and when?”
Linux, a freely distributable version of UNIX is developed by Linus Torvalds. Linux is one of the most popular operating systems to use for development by programmers. This tutorial will take a deep dive into the history of Linux.
In 1991, while studying computer science at University of Helsinki, Linus Torvalds began a project that later became the Linux kernel.
One frequent answer is, it is the primary software that manages all the software and hardware on a computer. There are different types of operating systems and Linux Tutorial is one among them. In this Linux tutorial, we will start from the basics of Linux and learn all the major Linux concepts that a Linux professional must be aware of.
What is the startup process in Linux?
The startup process. The startup process follows the boot process and brings the Linux computer up to an operational state in which it is usable for productive work. Systemd is the mother of all processes and it is responsible for bringing the Linux host up to a state in which productive work can be done .
How linux perf works?
Perf is a profiler tool for Linux 2.6+ based systems that abstracts away CPU hardware differences in Linux performance measurements and presents a simple commandline interface. Perf is based on the perf_events interface exported by recent versions of the Linux kernel. This article demonstrates the perf tool through example runs.
Perf_events is part of the Linux kernel, under tools/perf. While it uses many Linux tracing features, some are not yet exposed via the perf command, and need to be used via the ftrace interface instead.
What are the best resources for Linux perf analysis?
Perf- tools (github), a collection of my performance analysis tools based on Linux perf_events and ftrace. Perf Main Page. The excellent perf Tutorial, which focuses more on CPU hardware counters.
Another popular query is “How do I install the Perf tools in Linux?”.
The perf tools sourcecode lives in the Linux kernel tree under /tools/perf. You will find much more documentation in | /tools/perf/Documentation. To build manpages, info pages and more, install these tools: and issue a make install-man from /tools/perf. This step is also required to be able to run perf help