sgi rackable

XFS file system is the Advanced log file system developed by SGI, and XFS is very scalable and robust. Fortunately, SGI transplanted it into the Lin UX system. In the Linux environment. The current version of the latest XFS file system available for version 1.2, can work well under 2.4 core.Introduction of XFS File systemThe main features include the following points: Data complete With XFS file system, whe

This article describes how to parse freeblock in Python from Python source code, including memory space allocation and other knowledge. if you need it, refer to the following 1 introduction. In python memory management, there is a block concept. It is similar to the SGI subspace configurator.First, apply for a large space (4 KB), and then cut it into a small portion (8, 16 to 512 ).When there is a request for memory application, the simple process is

interfaces in view of the features of this distributed shared memory architecture. For example, the SGI Origin 3000 ccNUMA system has been widely used in many fields and is a very successful system. to optimize the performance of Origin 3000, SGI's IRIX operating system implements CpuMemSets on it. By binding the application to the processor and memory, it gives full play to the advantages of NUMA's local memory access. The Linux community has also i

The implementation of CpuMemSets in the Linux operating system-Linux Enterprise Application-Linux server application information. The following is a detailed description. I. Preface The Non-Uniform Memory Access structure is the main branch of the Distributed Shared Memory (Distributed Shared Memory) architecture. It combines the Distributed Memory technology with a single system image (SSI) technology, achieving a compromise between SMP system programming and MPP system scalability, has becom

, but the value of the count variable is already one more, and the data structure is corrupted. The correct wording is: static someclass* getnewinstance (){someclass* p = new SomeClass ();count++;return p;This way, if new fails, the exception is thrown directly, and the value of count does not increase. Similarly, when dealing with thread synchronization, you should also be aware of similar issues: void SomeFunc (){Lock (Somemutex); Add a lockDelete p;p = new SomeClass ();Unlock (Somemutex);At t

This section analyzes the Linux Enterprise Application-Linux server application information of a server built based on NUMA in Linux. The following is a detailed description. NUMA (Non-Uniform Memory Access Architecture) systems are widely used in the market. Many vendors have successfully launched NUMA-based servers. This article focuses on the NUMA Technology in Linux, it mainly includes: storage management, NUMA scheduling, and user-layer APIs, and performs basic NUMA tests on the

Six major STL components-Allocator (memory allocation, profound things) and six stl SGI has designed a dual-layer configurator. The first-level configurator directly uses malloc () and free (). The second-level configurator uses different policies as needed: when the configuration block exceeds bytes, the first-level provisioner is called as "large enough". When the configuration area is smaller than bytes, it is regarded as "too small". In order to r

will read the references below.Type extraction The extraction (traits) programming technology makes upC++HoweverSTLIt only regulates the characteristics of the iterator and developsiterator_traits. Since this technology is so useful, it should be applied to more extensive application scenarios. sgi stl (STL version developed by the Silicon Graphics System) has made an attempt to apply it outside the world of the iterator, therefore, the concept of ty

PostgreSQL is a powerful open-source object relational database system that runs on almost all major operating systems, including Linux, Unix (AIX, BSD, HP-UX, SGI PostgreSQL is a powerful open-source object relational database system that runs on almost all major operating systems, including Linux, Unix (AIX, BSD, HP-UX, SGI PostgreSQL is a powerful open-source object relational database system that r

two parameters of the bind2nd require a 2-tuple function, a numeric value, and a 1-element function.bind2nd is a function adapter.6. Space Configurator (Allocator)The STL Memory Configurator allocates and manages memory for the container. Unified memory management makes the availability, portability, and efficiency of STL libraries a great boost.There are 2 types of space Configurator for Sgi-stl, a simple encapsulation of malloc and free in C, and a

Because before the debug mode found that the STL's sort is simply too slow to endure, so I wrote an SGI sort, and later found in release mode, VS comes with the sort fast no, studied the next.Here are some and sgi-stl interlinked things on the brief, detailed content can see my previous STL source notes:Sgi-sort_linkFirst look at the approximate process: 1.没有调用到一定深度时，就进行划分并进行递归调用。 2.如果超过了一定深度时，这个区间改为调用堆排序

various graphics and other librariesGraphics library, famous for two: OpenGL and DirectX.OpenGL ("Open graphics Library") is a three-dimensional graphics standard with excellent performance and a software interface for graphics hardware. He is a world-renowned SGI and other computer companies advocated by the SGI GL three-dimensional graphics library based on a common shared open three-dimensional graphics

After the ANSI/iso c ++ STL standard version is officially passed, each C ++ compiler vendor can implement the C ++ STL generic library according to the prototype described in the standard, as a result, there are a variety of generic Libraries that comply with the standard interface, but the specific implementation code is different, mainly including: HP STL Hp stl was completed in collaboration with Meng Lee when Alexander Stepanov worked at the HP Palo Alto lab. Hp stl is the first implementat

Recently, I was working on a project with high performance requirements. A server needs to process 20 thousand UDP packets per second, with 40 elements in each package (of course, this is the peak period ). The server needs a linked list, and the algorithm has a logic to add each element to the end of the linked list (only the pointer of this element object, there is no problem with object replication ), then extract these elements from the Linked List (another time point ). A single thread is d

Summary on using hash_map and STL in Linux Summary on using hash_map and STL in LinuxAuthor: zhdrfirst time: 2010-10-21 Source: http://blog.chinaunix.net/u3/119070/showart_2363418.html Hash_map is not part of the C ++ standard library, but it implements hash_map because of its importance to many libraries (such as sgi stl and boost, the header file included in the G ++ compiler also contains the implementation of hash_map.Code(Implemented in

@ localhost ~] # You can use mongodo to edit the sudoers configuration file, but you can also directly modify the sudoers file. However, you 'd better check its sample before editing. sudoers file, which contains a very detailed example for reference.# Part 1: user defined. Users are divided into three categories: fulltimers, parttimers, and webmasters.User_alias fulltimers = millert, mikef, dowdyUser_alias parttimers = bostley, Hangzhou Fox, crawlUser_alias webmasters = Will, Wendy, Wim# Part

is a high-performance 3D graphics standard developed in recent years. It is under the initiative of many world-renowned computer companies such as SGI, A general shared OPEN 3D graphics standard based on the GL 3D graphics library of SGI. Currently, large companies such as Microsoft, SGI, IBM, Dec, sun, and HP all adopt OpenGL as three-dimensional graphics stand

long. The XFS file system is a better choice. We can see that the XFS file system is used to reduce the I/O latency, which is more important than Throughput-oriented evaluation. Therefore, in general, the actual cost, the efficiency of the parallel and OLTP access modes is more important. Not all tests are evaluated because the test results ignore the I/O latency, which is extremely important in the production environment. If you want to correctly evaluate the OLTP system, XFS will be the faste

categories: FULLTIMERS, PARTTIMERS, and WEBMASTERS.User_Alias FULLTIMERS = millert, mikef, dowdyUser_Alias PARTTIMERS = bostley, Hangzhou Fox, crawlUser_Alias WEBMASTERS = will, wendy, wim# Part 2: classify operation types.Runas_Alias OP = root, operatorRunas_Alias DB = oracle, sybase# Part 3: classify hosts. These are all randomly divided for better management.Host_Alias iSCSI = bigtime, eclipse, moet, anchor :\SGI = grolsch, dandelion, black :\ALPH

The simplest reinstallation system in the world (By lsyz0021), lsyz0021 in the worldZookeeper The simplest reinstallation system in the world: 1. Download the corresponding Window System and "SGI Image president" to the computer hard drive (except disk C) 2. Run "SGI Image president", which is convenient to use after the computer is started. Windows XP 32-bit http://pan.baidu.com/s/1kT65RhH Windo