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Hans Peter Anvin
Hans Peter Anvin (12 January 1972), also known as hpa, is a Swedish-American computer programmer who has contributed to free and open-source software projects. Anvin is the originator of SYSLINUX, Linux Assigned Names and Numbers Authority (LANANA), and various Linux kernel features. History Peter Anvin grew up in Västerås, Sweden. He moved to the United States in 1988, as a teenager, when his father moved to Chicago. Anvin was previously maintainer of the ''linux.*'' Usenet newsgroup hierarchy and the Linux kernel archives at kernel.org, wrote the original Swap Space How-to, and the "Linux/I386 Boot Protocol" (file: linux/Documentation/i386/boot.txt) Peter Anvin graduated in 1994 from Northwestern University, where he also was president of the Northwestern Amateur Radio Society (W9BGX); his amateur radio call sign is AD6QZ (formerly N9ITP). According to his personal web site, he is a believer in the Baháʼà Faith. In addition to his regular employment at Intel's Open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Västerås
Västerås ( , , ) is a city in central Sweden on the shore of Mälaren, Lake Mälaren in the province of Västmanland, west of Stockholm. The city had a population of 127,799 at the end of 2019, out of the municipal total of 154,049. Västerås is the seat of Västerås Municipality, the capital of Västmanland County and an episcopal see. History Västerås is one of the oldest cities in Sweden and Northern Europe. The name originates from ''Västra Aros'' (West Aros), which refers to the river mouth of Svartån. The area has been populated since the Nordic Viking Age, before 1000 CE. In the beginning of the 11th century it was the second largest city in Sweden, and by the 12th century had become the seat of the bishop. Anundshög is located just outside the City of Västerås. Anundshög is Sweden's largest burial mound. "Hög" is derived from the Old Norse word ''haugr'' meaning mound or barrow. It was built about 500 CE and is over wide and is almost high. In the ensu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. The term "amateur" is used to specify "a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;" (either direct monetary or other similar reward) and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and '' amateur-satellite service'') is established by the International Telecommunication Union (ITU) through the Radio Regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station licenses with a unique identifying call sign, which mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swedish Computer Programmers
Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by the Swedish language * Swedish people or Swedes, persons with a Swedish ancestral or ethnic identity ** A national or citizen of Sweden, see demographics of Sweden ** Culture of Sweden * Swedish cuisine See also * * Swedish Church (other) * Swedish Institute (other) * Swedish invasion (other) * Swedish Open (other) Swedish Open is a tennis tournament. Swedish Open may also refer to: *Swedish Open (badminton) * Swedish Open (table tennis) *Swedish Open (squash) *Swedish Open (darts) The Swedish Open is a darts tournament established in 1969, held in Malmà ... {{disambig Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C Standard Library
The C standard library or libc is the standard library for the C programming language, as specified in the ISO C standard.ISO/IEC (2018). '' ISO/IEC 9899:2018(E): Programming Languages - C §7'' Starting from the original ANSI C standard, it was developed at the same time as the C library POSIX specification, which is a superset of it. Since ANSI C was adopted by the International Organization for Standardization, the C standard library is also called the ISO C library. The C standard library provides macros, type definitions and functions for tasks such as string handling, mathematical computations, input/output processing, memory management, and several other operating system services. Application programming interface Header files The application programming interface (API) of the C standard library is declared in a number of header files. Each header file contains one or more function declarations, data type definitions, and macros. After a long period of stabi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klibc
In computing, klibc is a minimalistic subset of the standard C library developed by H. Peter Anvin. It was developed mainly to be used during the Linux startup process, and it is part of the early user space, i.e. components used during kernel startup, but which do not run in kernel mode.https://www.kernel.org/doc/Documentation/early-userspace/README These components do not have access to the standard library (usually glibc or musl) used by normal userspace programs. The development of klibc library was part of the 2002 effort to move some Linux initialization code out of the kernel. According to its documentation, the klibc library is optimized for correctness and small size. Because of its design, klibc is also technically suitable for embedded software in general on a variety of platforms, and is used even by full-featured programs such as the MirBSD Korn Shell. During the Linux startup process, klibc is loaded from within a temporary RAM file system, initramfs. It is inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X32 ABI
The x32 ABI is an application binary interface (ABI) and one of the interfaces of the Linux kernel. The x32 ABI provides 32-bit integers, long and pointers (ILP32) on Intel and AMD 64-bit hardware. The ABI allows programs to take advantage of the benefits of x86-64 instruction set (larger number of CPU registers, better floating-point performance, faster position-independent code, shared libraries, function parameters passed via registers, faster syscall instruction) while using 32-bit pointers and thus avoiding the overhead of 64-bit pointers. Details Though the x32 ABI limits the program to a virtual address space of 4 GiB, it also decreases the memory footprint of the program by making pointers smaller. This can allow it to run faster by fitting more code ''and'' more data into cache. The best results during testing were with the 181.mcf SPEC CPU 2000 benchmark, in which the x32 ABI version was 40% faster than the x86-64 version. On average, x32 is 5–8% faster on the SPEC CPU i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAID 6
In computer storage, the standard RAID levels comprise a basic set of RAID ("redundant array of independent disks" or "redundant array of inexpensive disks") configurations that employ the techniques of striping, mirroring, or parity to create large reliable data stores from multiple general-purpose computer hard disk drives (HDDs). The most common types are RAID 0 (striping), RAID 1 (mirroring) and its variants, RAID 5 (distributed parity), and RAID 6 (dual parity). Multiple RAID levels can also be combined or ''nested'', for instance RAID 10 (striping of mirrors) or RAID 01 (mirroring stripe sets). RAID levels and their associated data formats are standardized by the Storage Networking Industry Association (SNIA) in the Common RAID Disk Drive Format (DDF) standard. The numerical values only serve as identifiers and do not signify performance, reliability, generation, or any other metric. While most RAID levels can provide good protection against and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automounter
An automounter is any program or software facility which automatically mounts filesystems in response to access operations by user programs. An automounter system utility (daemon under Unix), when notified of file and directory access attempts under selectively monitored subdirectory trees, dynamically and transparently makes local or remote devices accessible. The automounter has the purpose of conserving local system resources and of reducing the coupling between systems which share filesystems with a number of servers. For example, a large to mid-sized organization might have hundreds of file servers and thousands of workstations or other nodes accessing files from any number of those servers at any time. Usually, only a relatively small number of remote filesystems (''exports'') will be active on any given node at any given time. Deferring the mounting of such a filesystem until a process actually needs to access it reduces the need to track such mounts, increasing reliabil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CPUID
In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU IDentification) allowing software to discover details of the processor. It was introduced by Intel in 1993 with the launch of the Pentium and SL-enhanced 486 processors. A program can use the CPUID to determine processor type and whether features such as MMX/ SSE are implemented. History Prior to the general availability of the CPUID instruction, programmers would write esoteric machine code which exploited minor differences in CPU behavior in order to determine the processor make and model. With the introduction of the 80386 processor, EDX on reset indicated the revision but this was only readable after reset and there was no standard way for applications to read the value. Outside the x86 family, developers are mostly still required to use esoteric processes (involving instruction timing or CPU fault triggers) to determine the var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudo Terminal
In some operating systems, including Unix and Linux, a pseudoterminal, pseudotty, or PTY is a pair of pseudo-device endpoints (files) which establish asynchronous, bidirectional communication ( IPC) channel (with two ports) between two or more processes. The ''master'' provides means by which a terminal emulator process controls the slave. The ''slave'', emulates a hardware text terminal device. PTY are similar to bidirectional pipes. The ''master'' files are typically used by networking applications (e.g. rlogin) and ''slave'' files are used by terminal-oriented programs such as shells (e.g. bash) as a processes to read/write data back from/to ''master'' endpoint. Common application of PTYs is in providing network login services. Devpts is a Linux Kernel virtual file system used to emulate PTYs connection. Linux implementation is based on System V-style terminals (commonly referred as UNIX 98 pseudoterminals) and provides POSIX and the Single Unix Specification API in the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RPath
rPath, Inc. was a technology company based in Raleigh, North Carolina that developed technology to automate the process of constructing (or packaging), deploying and updating software.Craig, Julie. "Cloud Coalition: rPath, newScale, and Eucalyptus Systems Partner on Self-Service Public and Private Cloud". Enterprise Management Associates, 2010, p. 2. rPath modeled and managed components and dependencies under version control. It acted as a model-driven and version-controlled repository and software distribution hub.Chalmers, Rachel. "Eucalyptus Systems, newScale and rPath join to build integrated cloud on-ramp". The 451 Group, 2010, p. 1. In November, 2012, rPath was acquired by SAS Institute. Shortly after this, rPath Linux was discontinued. History rPath was founded in April 2005, and was originally known for packaging applications as virtual appliances for its independent software vendors (ISVs) and end-user customers. It was co-founded by Erik Troan, co-author of Red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmeta
Transmeta Corporation was an American fabless semiconductor company based in Santa Clara, California. It developed low power x86 compatible microprocessors based on a VLIW core and a software layer called Code Morphing Software. Code Morphing Software (CMS) consisted of an Interpreter (computing), interpreter, a runtime system and a Binary translation#Dynamic binary translation, dynamic binary translator. x86 instructions were first interpreted one instruction at a time and profiled, then depending upon the frequency of execution of a code block, CMS would progressively generate more optimized translations. The VLIW core implemented features specifically designed to accelerate CMS and translations. Among the features were support for general speculation, detection of memory aliasing and detection of self modifying x86 code. The combination of CMS and the VLIW core allowed for the achievement of full x86 compatibility while maintaining performance and reducing power consumption. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
