about general cachealgorithms detailed algorithms specific to paging page replacement algorithm detailed algorithms specific to the cache between a CPU and RAM CPU cache In computing , cachealgorithms also frequently called replacement algorithms or replacement policies are Optimization computer science ..., many cachealgorithms in particular, LRU allow this streaming data fill the cache, pushing out ... datasets sometimes known as cyclic access patterns MRU cachealgorithms have more hits than LRU ... items may be necessary. Various algorithms also exist to maintain cache coherency . This applies ... of various cachealgorithms http www.cs.umd.edu class spring2003 cmsc311 Notes Memory fully.html ... cache DEFAULTSORT CacheAlgorithms Category Cache computing Category Memory management algorithms ... ru tr nbellek algoritmalar zh hy Cachealgorithms ... maintained structure can follow to manage a cache computing cache of information stored on the computer. When the cache is full, the algorithm must choose which items to discard to make room for the new ... when there is a miss or, with multi level cache, average memory reference time for the next lower cache math T h math the latency the time to reference the cache when there is a hit E various secondary ... of a cache The latency, and the hit rate. There are also a number of secondary factors affecting cache performance. ref name ajsmith Alan Jay Smith. Design of CPU Cache Memories . Proc. IEEE TENCON, 1987. http www.eecs.berkeley.edu Pubs TechRpts 1987 CSD 87 357.pdf ref The hit ratio of a cache describes how often a searched for item is actually found in the cache. More efficient replacement policies keep track of more usage information in order to improve the hit rate for a given cache size . The latency of a cache describes how long after requesting a desired item the cache can return that item ... or, in the case of direct mapped cache, no information to reduce the amount of time required to update ... more details
selfref For information related to caching Wikipedia, see Wikipedia Cache . wiktionary cache caching cach Cache may refer to Caching or hoarding animal behavior , a food storing behavior of animals An underground weapons or logistics cache, as used by survivalist s not mentioned in article Treasure trove , a valuable cache which has been lost, or left unclaimed by the owner, or a place where items are stored Geocaching , an outdoor treasure hunting game In computing Cache computing , a collection of data duplicating original values stored elsewhere on a computer CPU cache , a small area of fast memory used by the central processing unit Disk buffer , the small amount of buffer memory present on a hard drive Page cache , the cache of disk pages kept by the operating systems, stored in unused main memory Web cache , a mechanism for the temporary storage of web documents to increase performance DNS cache , a server in the domain name system which stores queried results for a period of time P2P caching , a technique used to reduce bandwidth costs for content on peer to peer networks Database caching , a mechanism used to cache database content in multi tier applications InterSystems Cach , an object relational database management system In geography Cache Aosta , a frazione in the Province of Aosta in the Aosta Valley region of Italy Cache, Illinois , an unincorporated community in Alexander County, Illinois, United States Cache, Oklahoma , a city in Comanche County Cache Creek disambiguation , several places Cache County, Utah , United States Cache, Utah , Cache County, Utah, United States Cache Peak , a tall mountain in List of Idaho state parks Castle Rocks State Park Cach ... or pre printed postage Cash , money in the form of liquid currency intitle Cache Lookfrom Cache intitle Cach Lookfrom Cach disambiguation bg de Cache Begriffskl rung es Cach fr Cache it Cache disambigua nl Cache ja nrm Cache pl Cache ujednoznacznienie pt Cache desambigua o ru ... more details
engineering see Software engineering Cachealgorithms CHS conversion converting between disk addressing ...The following is a list of algorithms along with one line descriptions for each. Combinatorial algorithms see Combinatorics General combinatorial algorithms Cycle detection Brent s algorithm Brent s algorithm ... Mersenne twister Graph algorithms see Graph theory Category Graph algorithms Coloring algorithm Graph ... Force based algorithms graph drawing Force based algorithms also known as force directed algorithms ... algorithms for computing the minimum spanning tree of a set of points in the plane Longest path problem ... Kosaraju s algorithm Tarjan s algorithm Sequence algorithms see Sequences Approximate matching Bitap ... Sorting main Sorting algorithms contradict other Sorting algorithm Comparison of algorithms ... build a compact, cache efficient burst trie and then traverse it to create sorted output Counting ... s Computational mathematics see Computational mathematics see also List of algorithms Combinatorial algorithms l1 Combinatorial algorithms List of algorithms Computational science l2 Computational ... Geometry main Category Geometric algorithms l1 Geometric algorithms see Computational geometry Closest ... Collision detection algorithms check for the collision or intersection of two given solids Cone algorithm identify surface points Convex hull algorithms determining the convex hull of a Set mathematics ... algorithm Minimum bounding box algorithms find the Minimum bounding box Arbitrarily oriented minimum ... the nearest point or points to a query point Point in polygon algorithms tests whether a given point ... algorithms decompose a polygon into a set of triangles Voronoi diagram s, geometric duality ... number of dimensions Fortune s Algorithm create voronoi diagram Number theoretic algorithms see Number ... Sieve of Eratosthenes Sieve of Sundaram Numerical algorithms see Numerical analysis List of numerical ... methods , a group of algorithms for solving differential equations using a hierarchy of discretizations ... more details
orphan date October 2009 As opposed to persistent data stored in memory medium for access on demand, transient data originated on line streams are lost if not explicitly stored. These transient data, called data stream s, invalid many existing algorithm s for persistent data. Paralleled with persistent data and data streams, streaming algorithm s is coined which process streams with sublinear memory cost. Among many methods of designing algorithms for data streams, streamlizing algorithms to enable algorithms to process data streams is one of possible research directions. Streaming Graph Semi streaming Graphs With given Vertex graph theory vertex set V, edges in edge set is shown one by one ...... External links WebDB.cn Southeast University http sites.google.com site webdbp2p WebDB.cn Southeast University http cse.seu.edu.cn people zhchong Streaming algorithms http en.wikipedia.org wiki Streaming algorithms Data Stream Mining http en.wikipedia.org wiki Data stream mining DEFAULTSORT Streamlizing Algorithms Category Data management ... more details
orphan date December 2007 XDAIS or eXpressDsp Algorithm Interoperability Standard is a standard for algorithm development by Texas Instruments for the TMS320 DSP family. The standard was first introduced in 1999 and was created to facilitate integration of DSP algorithms into systems without re engineering cost. The XDAIS standard address the issues of algorithm resource allocation and consumption on a DSP. Algorithms that comply with the standard are tested and awarded an eXpressDSP compliant mark upon successful completion of the test The standard consists of a set of general rules and guidelines that should be applied to all algorithms. For instance, all XDAIS compliant algorithms must implement an Algorithm Interface, called IALG. For those algorithms utilizing Direct Memory Access DMA , the IDMA interface must be implemented. Further, specific rules are provided for each family of TI DSP. Problems are often caused in algorithm by hard coding access to system resources that are used by other algorithms. DAIS prohibits the use of this type of hard coding. Instead, DAIS requires a standard API for the application to call a particular algorithm class. This API is defined in the xDM standard , also referred to as the VISA API s video, imaging, speech and audio . A XDAIS developer s kit provides the standard itself, example code, and a demonstration. Benefits of XDAIS over non standardised approaches include Significant reduction in integration time as algorithms do not trash each others resources Easy comparison of algorithms from multiple different sources in the same application Access to broad range of compliant algorithms available from multiple TI DSP Third Parties eliminates need to custom develop complex algorithms Algorithms work out of the box with eXpressDSP Multimedia Framework Products, such as Codec Engine TI See also eXpressDsp External links http focus.ti.com docs toolsw folders print tmdxdaisxdm.html technicaldocuments XpressDSP Algorithm Standard xD ... more details
Infobox book name Introduction to Algorithms title orig translator image Image Clrs3.jpeg thumb image caption Cover of the third edition author Thomas H. Cormen , Charles E. Leiserson , Ron Rivest Ronald L. Rivest , and Clifford Stein illustrator cover artist country USA language English series subject Computer algorithms genre publisher MIT press pub date 1990 first edition english pub date media type pages isbn 978 0 262 03384 8 oclc dewey congress preceded by followed by Image Clrs.jpg thumb Cover of the second edition Introduction to Algorithms is a book by Thomas H. Cormen , Charles E. Leiserson , Ron Rivest Ronald L. Rivest , and Clifford Stein . It is used as the textbook for algorithms courses at many universities. It is also one of the most commonly cited references for algorithms in published papers, citation needed date March 2011 reason We can see that there are many citations, but we need a source corroborating that it s one of the most commonly cited with over 4800 citations documented on CiteSeerX . ref cite web url http citeseerx.ist.psu.edu showciting?cid 1910 title Introduction to Algorithms&mdash CiteSeerX citation query accessdate 2009 09 01 work CiteSeerX publisher ... to algorithms 500k 0810.html title Milestone for MIT Press s bestseller author Larry Hardesty date August ... as CLRS . This first edition of the book was also known as The Big White Book of Algorithms . With the second ... to just The Big Book of Algorithms . ref http www.csd.uwo.ca jamie .Refs tech books.html Neato ... to Algorithms 1 notitlelink 1 Introduction to Algorithms 2 notitlelink 1 Introduction to Algorithms 3 notitlelink 1 References reflist External links Official websites by http mitpress.mit.edu algorithms MIT Press MIT lecture MIT 6.046J 18.410J Introduction to Algorithms Fall 2005 . Held in part by coauthor ... of the lectures. At http videolectures.net mit6046jf05 introduction algorithms VideoLectures.Net ... a los algoritmos ko Introduction to Algorithms it Introduzione agli algoritmi ru ... more details
Unreferenced stub auto yes date December 2009 For computer algorithms List of algorithms In elementary arithmetic , a standard algorithm or method is a specific method of computation which is conventionally taught for solving particular mathematical problems. These methods vary somewhat by nation and time, but generally include carrying, borrowing, long division, and long multiplication using a standard notation, and standard formulas for average, area, and volume. Similar methods also exist for procedures such as square root and even more sophisticated functions, but have fallen out of the general mathematics curriculum in favor of calculators or tables and slide rules before them . The concepts of reform mathematics which the NCTM introduced in 1989 favors an alternative approach. It proposes a deeper understanding of the underlying theory instead of memorization of specific methods will allow students to develop individual methods which solve the same problems. Students alternative algorithms are often just as correct, efficient, and generalizable as the standard algorithms, and maintain emphasis on the meaning of the quantities involved, especially as relates to place values something that is usually lost in the memorization of standard algorithms . The development of sophisticated calculators has made manual calculation less important see the note on square roots, above and cursory teaching of traditional methods has created failure among many students. Greater achievement among all types of students is among the primary goals of mathematics education put forth by NCTM . Some researchers such as Constance Kamii have suggested that elementary arithmetic, as traditionally taught, is not appropriate in elementary school. Many first editions of textbooks written to the original 1989 standard such as TERC deliberately discouraged teaching of any particular method, instead ... of the materials. Standards based Education Reform DEFAULTSORT Standard Algorithms Category Mathematics ... more details
Navigational Algorithms is a source of information whose purpose is to make available the scientific part of the art of navigation, containing specialized articles and software that implements the various procedures of calculus. The topics covered are Celestial navigation Sight Reduction, Line Of Position, Fix... Positional astronomy RA, GHA, Dec Coastal navigation Range, Bearing, Horizontal angles, IALA... Sailings Rhumbs, Loxodromic, Orthodromic, Meridional parts... Weather , tides Software PC PDA Nautical Almanac, Sailings, Variation, Sextant corrections Advanced navigation Include articles about piloting and astronavigation Corrections for sextant altitude, Sight Reduction with calculator Form & Plotting sheet for celestial LoPs, Celestial Fix 2 LoPs, Celestial Fix n LoPs NA Sight Reduction algorithm, Vector equation of the Circle of Position, Vector Solution for the intersection of two Circles of Equal Altitude, Sight Reduction Matrix solution. Basic marine navigation Include papers about introduction to navigation, tides, naval kinematics, weather and oceanography Navigation shareware This section gives a brief description of the free programs available for navigation. Run under Windows XP, maybe under 95 98 2000 NT Nautical Almanac Ephemerides of the celestial bodies used in navigation. Image NA.png thumb 340px Nautical Almanac GHA Greenwich Hour Angle Dec Declination SD Semidiameter HP Horizontal Parallax CelestialFix Astronavigation solution for sight reduction for n observations made with a marine sextant & running fixes The algorithms implemented are For n 2 observations An analytical solution of the two star sight problem of celestial navigation, James A. Van Allen ref An analytical solution of the two star sight problem of celestial navigation. James A. Van Allen. NAVIGATION Vol. 28, No. 1, 1981 ref . Vector Solution for the Intersection of two Circles of Equal ... site navigationalalgorithms Navigational Algorithms http journals.cambridge.org action displayIssue ... more details
more footnotes date March 2010 In computer science , the analysis of algorithms is the determination of the amount of resources such as time and storage necessary to execute them. Most algorithm s are designed to work with inputs of arbitrary length. Usually the efficiency or running time of an algorithm is stated as a function relating the input length to the number of steps time complexity or storage locations space complexity . Algorithm analysis is an important part of a broader computational ... of search for efficient algorithms. In theoretical analysis of algorithms it is common to estimate ... an answer. Exact measures of efficiency are useful to the people who actually implement and use algorithms ... author3 Jeffrey D. Ullman title The design and analysis of computer algorithms year 1974 publisher ... Ingo title Complexity theory exploring the limits of efficient algorithms publisher Springer Verlag ... structures and network algorithms url http books.google.com books?id JiC7mIqg X4C&pg PA3 year 1983 publisher ... in the analysis of arbitrary precision arithmetic algorithms, like those used in cryptography . A key ... and therefore there are algorithms that are faster than what would naively be thought possible ... metrics Since algorithms are platform independent i.e. a given algorithm can be implemented in an arbitrary ... set of algorithms. Take as an example a program that looks up a specific entry in a collation ... but still could serve for comparison of any two given algorithms as to their empirical ... of growth for common algorithms Notes reflist References Cite book authorlink Thomas H. Cormen first ... Clifford last4 Stein title Introduction to Algorithms edition Second publisher MIT Press and McGraw ... book title Algorithms in C, Parts 1 4 Fundamentals, Data Structures, Sorting, Searching edition 3rd ... of Algorithms edition Second location publisher Birkh user year 1982 isbn 374633102X Cite book ... Of Algorithms Category Computational complexity theory Category Analysis of algorithms ar ... more details
have been assigned a color, then we have found a solution. There are more sophisticated algorithms ..., implementations of Sudoku using algorithms for exact cover typically solve 9x9 Sudoku grids instantly .... Randomized algorithms are less vulnerable to worst case inputs, but don t have consistent ... include simulated annealing , and tabu search . Stochastic based optimisation algorithms are known ... however, optimisation algorithms do not necessarily require problems to be logic solvable, giving ... a search routine. Algorithmic search for symmetrical Sudokus with few givens Computer algorithms ... more details
In computing, a distributed cache is an extension of the traditional concept of cache computing cache used in a single Locale computer hardware locale . A distributed cache may span multiple servers so that it can grow in size and in transactional capacity. It is mainly used to store application data residing in database and web session computer science session data. The idea of distributed caching ref cite journal last Paul first S coauthors Z Fei date 2001 02 01 title Distributed caching with centralized control journal Computer Communications volume 24 issue 2 pages 256 268 doi 10.1016 S0140 3664 00 00322 4 accessdate 2009 11 18 ref has become feasible now because Random access memory main memory has become very cheap and Network interface controller network cards have become very fast, with 1Gbit now standard everywhere and 10Gbit gaining traction. Also,a distributed cache works well on lower cost machines usually employed for web server web servers as opposed to Database server database servers which require expensive hardware. ref cite magazine last Khan first Iqbal title Distributed Caching On The Path To Scalability magazine MSDN issue July 2009 url http msdn.microsoft.com en us magazine dd942840.aspx accessdate 2012 3 30 ref Some distributed cache products are Infinispan , AppFabric Caching Service , NCache product NCache , Oracle Coherence , IBM WebSphere eXtreme Scale , Memcached and Ehcache . See also CachealgorithmsCache coherence Cache oblivious algorithm Cache stampede Cache language model Database cacheCache manifest in HTML5 Further reading http www.unilim.fr sci wiki media cali cpumemory.pdf What Every Programmer Should Know About Memory by Ulrich Drepper http msdn.microsoft.com en us library dd129907.aspx Caching in the Distributed Environment References Reflist Category Cache computing ... more details
In computer science , cache coloring also known as page coloring is the process of attempting to allocate free page computer science pages that are contiguous from the CPU cache s point of view, in order to maximize the total number of pages cached by the processor. Cache coloring is typically employed by low level dynamic memory allocation code in the operating system , when mapping virtual memory to physical memory . A virtual memory subsystem that lacks cache coloring is less deterministic with regards to cache performance, as differences in page allocation from one program run to the next can lead to large differences in program performance. Details of operations Image Page Coloring Ja.JPG thumb 400px left Illustration of cache coloring. Left is virtual memory spaces, center is the physical memory space, and right is the CPU cache . A physically indexed CPU cache is designed such that addresses in adjacent physical memory blocks take different positions cache lines in the cache, but this not the case when it comes to virtual memory when virtually adjacent but not physically adjacent memory blocks are allocated, they could potentially both take the same position in the cache. Coloring is a technique implemented in memory management software, which solves this problem by selecting pages that do not contend with neighbor pages. Physical memory pages are colored so that pages with different colors have different positions in CPU cache memory. When allocating sequential pages in virtual memory for processes, the kernel collects pages with different colors and map them to the virtual memory. In this way, sequential pages in virtual memory do not contend for the same cache line ... as deterministic as physical memory in regard to cache performance. Page coloring is employed in operating ... Page Placement Algorithms for Large Real Indexed Caches , by R. E. Kessler, Mark D. Hill ..., Nov. 1996. DEFAULTSORT Cache Coloring Category Cache computing ... more details
CachealgorithmsCache coherence Cache coloring Cache oblivious algorithm Cache stampede Cache language ...Use dmy dates date April 2012 About the computer science optimization concept Cache disambiguation Refimprove date April 2011 In computer science , a cache IPAc en icon k respell KASH ref cite web url http www.merriam webster.com dictionary cache title Cache publisher Merriam Webster, Incorporated ... a cache might be values that have been computed earlier or duplicates of original values that are stored elsewhere. If requested data is contained in the cachecache hit , this request can be served by simply reading the cache, which is comparatively faster. Otherwise cache miss , the data has ..., the greater the number of requests that can be served from the cache, the faster the overall system ... to data that has been requested already. File cache,basic.svg frame Diagram of a CPU memory cache Operation Hardware implements cache as a block data storage block of memory for temporary storage of data likely to be used again. CPU s and hard drive s frequently use a cache, as do web browsers and web servers. A cache is made up of a pool of entries. Each entry has a datum a nugget piece of data ... of the datum in the backing store of which the entry is a copy. When the cache client a CPU, web ... checks the cache. If an entry can be found with a tag matching that of the desired datum, the datum in the entry is used instead. This situation is known as a cache hit . So, for example, a web browser program might check its local cache on disk to see if it has a local copy of the contents of a web ... is the datum. The percentage of accesses that result in cache hits is known as the hit rate or hit ratio of the cache. The alternative situation, when the cache is consulted and found not to contain a datum with the desired tag, has become known as a cache miss . The previously uncached datum fetched from the backing store during miss handling is usually copied into the cache, ready for the next access ... more details
Cache River may refer to The Cache River Arkansas Cache River in Arkansas , site of the Cache River National Wildlife Refuge The Cache River Illinois Cache River in Illinois , site of the Cypress Creek National Wildlife Refuge disambig ... more details
Cache Creek may refer to Cache Creek British Columbia , a stream in the Thompson Country of British Columbia, Canada Cache Creek, British Columbia , a town in British Columbia, Canada, named after the creek Cache Creek Kern County, California , a stream in Kern County, California, United States Cache Creek Oklahoma , a stream in Southwestern Oklahoma, United States Cache Creek Mokelumne River , a Sierra Nevada tributary of the North Fork Mokelumne River Cache Creek Sacramento River , a tributary stream in Yolo, Colusa, and Lake Counties, California, United States Cache Creek Casino Resort , is a casino resort located in Brooks, California dab geo de Cache Creek fr Cache Creek ... more details
Disk cache may refer to Disk buffer , the small amount of buffer memory present on a hard drive. Page cache , the cache of disk pages kept by the operating systems, stored in unused main memory. General application level cache computing caching of data stored on the disk. disambig ko zh ... more details
Unreferenced date December 2008 Cache invalidation is a process whereby entries in a cache computing cache are deleted. It can be done explicitly, as part of a cache coherence protocol in a parallel computing parallel computer . In such a case, a compute node changes a variable and then invalidates the cached values of that variable across the rest of the computer system. Category Cache coherency Parallel computing storage software stub ... more details
Smart Cache is a level 2 or level 3 cache method for multiple execution cores invented by Intel . It shares the cache among cores CPU Core or GPU . In comparison to a dedicated cache per core the overall cache miss rate decreases in times where not all cores need equally much cache space. Consequently a single core can use the full level 2 cache or level 3, if the other cores are inactive. ref cite web url http www.intel.com content www us en architecture and technology intel smart cache.html title Intel Smart Cache Demo publisher Intel accessdate 2012 01 26 ref Furthermore the shared cache makes it faster to share memory among different execution cores. ref cite web url http software.intel.com file 18374 title Inside Intel Core Microarchitecture and Smart Memory Access format PDF 183KiB page 5 publisher Intel date 2006 accessdate 2012 01 26 ref References references category Intel products ... more details
Unreferenced date December 2009 Distinguish DNS cache poisoning Cache pollution describes situations where an executing computer program loads data into CPU cache unnecessarily, thus causing other needed data to be evicted from the cache into lower levels of the memory hierarchy , potentially all the way ... T 0 T 0 1 for i in 0..SIZEOF CACHE C i C i 1 T 0 T 0 C SIZEOF CACHE 1 The assumptions here are that the cache ... data is cacheable, the CPU cache Associativity set associativity of the cache is N where N 1 , and at most ..., T 0 will be fetched from memory into cache, its value updated. However, as the loop executes, because the number of data elements the loop references requires the whole cache to be filled to its capacity, the cache block containing T 0 has to be evicted. Thus, the next time the program requests T 0 to be updated, the cache misses, and the cache controller has to request the computer bus data bus to bring the corresponding cache block from main memory again. In this case the cache is said to be polluted ... the corresponding cache block as least recently used i.e. as the prime candidate for eviction upon a need to evict a block from its cache set. To appropriately use that instruction in the context .... When implemented in this manner, cache pollution would not take place, since the execution of such loop would not cause premature eviction of T 0 from cache. This would be avoided because, as the loop would progress, the addresses of the elements in C would map to the same cache way ... the oldest data not pertinent for the example given would be evicted from cache, which T 0 is not a member ... run time overhead is overwhelmingly larger than any gain achievable by cache pollution avoidance unless the memory region has been non cacheable to begin with . Often in real life the cache is composed of more than one level called the L1 , L2 etc. . Therefore, cache pollution is well defined only for situations where the term cache is unambiguous. Otherwise, it is imperative to specify which level ... more details
Image COAST.jpg thumb right 300px A COASt cache module and a Quarter United States coin quarter for size ... COAST CPU.jpg right thumb 200px 1. CPU Pentium 133 br 2. Tag RAM for CPU cache L2 cache . br 3. Socket for COAST Module. COASt , an acronym for cache on a stick , is a packaging standard for modules containing Static random access memory SRAM used as an CPU cache L2 cache in a computer. COASt modules ... platforms during early to mid 1990s, but with newer computers cache is built into either the Central processing unit CPU or the motherboard . COASt modules decoupled the motherboard from its cache, allowing varying configurations to be created. A low cost system could run with no cache, while a more expensive system could come equipped with 512 KB or more cache. Later COASt modules were equipped ... cache chips. The slot that the COASt module plugged into was named CELP , or card edge low profile ... contacts 42 and 43. Operation COASt modules provided either 256K or 512K of Direct mapped cache direct mapped cache , organized as 8192 or 16384 lines of 32 bytes. A 64 bit data bus allowed the cache ... burst Static RAM SRAM , plus 8 or 11 bits of even faster static RAM per line to store the cache tags ... illustrated to the right placed the tag RAM on the motherboard and only the main cache RAM was on the module ... the cache size, or 64 MiB. An 11 bit tag supports up to 512 MiB. Each cache line also has a valid bit and a dirty bit, stored in the cache controller. 16 Kbits, or 2 Kbytes, total size. A 512K module contains twice as many cache lines, and so requires one fewer tag bit to support the same cacheable memory size. The leftover tag bit is instead used to store the cache line dirty bit, and all 16 Kbits in the cache controller are used for valid bits. References http www.pcguide.com ref mbsys cache structCOASt c.html COASt Modules , PCGuide, April 17, 2001. http www.pcguide.com proc physinst coast.htm Cache Module Physical Installation Procedure , PCGuide, April 17, 2001. Renn, Brian ... more details
Distinguish web cache The Download Cache , or downloaded files cache, is a component of Microsoft s .NET Framework that is similar to the Global Assembly Cache except that it caches .NET assembly assemblies that have been downloaded from the Internet . ref http msdn2.microsoft.com en us magazine cc164080.aspx Basic Instincts Deploying Assemblies Bot generated title ref Assemblies are downloaded from the Internet when a specific Managed code managed Object computer science object is requested using the code < object code HTML element tag in a web page . For example, the following HTML will cause Internet Explorer to download MyAssembly.dll to the Download Cache and will subsequently Object lifetime instantiate MyControl on the page that contains it. code < object id myControlId classid http MyServer MyVirtualFolder MyAssembly.dll MyNamespace.MyControl code code < param name MyProperty value SomeStringValue code code < object code Usage Like the GAC, the Download Cache can be accessed with gacutil.exe ref http msdn2.microsoft.com en us library ex0ss12c VS.80 .aspx Global Assembly Cache Tool Gacutil.exe Bot generated title ref . One can list the contents of the Download Cache using the command pre gacutil.exe ldl pre One can delete the contents of the Download Cache using the command pre gacutil.exe cdl pre References reflist Category .NET framework Category Article Feedback 5 ... more details
Orphan date July 2009 Unreferenced date August 2009 A Cache c ur French language French for hide the heart is a top clothing top for women, composed of two finished triangular parts, each having a strap. It is closed by overlapping the two segments and tying the straps behind the back or along the side, depending on the length. The triangular shape of the sides makes the garment a type of V neck. DEFAULTSORT Cache Cour Category Clothing clothing stub fr Cache c ur it Cache c ur sv Cache c ur ja ... more details
In computing, cache coherence also cache coherency refers to the consistency of data stored in local cache computing caches of a shared resource. Image Cache Coherency Generic.png thumb right 400px Multiple Caches of Shared Resource When clients in a system maintain CPU cache caches of a common memory ... client could be left with an invalid cache of memory without any notification of the change. Cache coherence is intended to manage such conflicts and maintain consistency between cache and memory. Coherency ... the amount of inter cache traffic, which in turn may affect the amount of cache bandwidth available ... have been devised for maintaining cache coherence, such as MSI protocol , MESI protocol MESI aka ... MESIF , Write once cache coherence write once , Synapse protocol Synapse , Berkeley protocol Berkeley ... system so that no data is lost or overwritten before the data is transferred from a cache to the target ..., each processor may have its own memory cache that is separate from the larger RAM that the individual processors will access. A memory cache, sometimes called a cache store or RAM cache, is a portion ... that is changed in any cache is changed throughout the entire system. This is done in either of two ... to its cache. When an entry is changed the directory either updates or invalidates the other caches ... if they have a copy of the block of data that is requested on the bus. Every cache has a copy of the sharing status of every block of physical memory it has. Cache misses and memory traffic due to shared .... Cache coherence aims to solve the problems associated with sharing data. Choice of the consistency model is crucial to designing a cache coherent system. Coherence models differ in performance and scalability ... Jim title The Cache Memory Book publisher Academic Press, Inc. year 1998 isbn 0 12 322980 4 See also Portal Computer science Non Uniform Memory Access Cache coherent NUMA .28ccNUMA.29 ccNUMA Memory barrier Distributed cache Parallel computing Category Cache coherency Category Parallel computing Category ... more details
confusing date August 2011 unreferenced date August 2011 The Oracle data dictionary is a collection of database tables, owned by the SYS and SYSTEM schemas, that contain the metadata about the database, its structures, the privileges and roles of database users. The data dictionary cache holds cached blocks from the data dictionary. Data blocks from tables in the data dictionary are used continually to assist in processing user queries and other DML commands. If the data dictionary cache is too small, requests for information from the data dictionary will cause extra I O to occur these I O bound data dictionary requests are called recursive calls and should be avoided by sizing the data dictionary cache correctly. Fast Access Oracle constantly accesses the data dictionary during database operation to validate user access and to verify the state of schema objects. All information is stored in memory using the least recently used LRU algorithm. The data dictionary cache is accessed for each SQL statement at parse time and again at runtime when the SQL gathers dynamic storage for execution. Dictionary Cache Hit Ratio The data dictionary cache hit ratio is used to measure the ratio of dictionary hits to misses meaning how many times dictionary cache has the dictionary tables data blocks for requested information and how many times Oracle has to do I O for missing on cache. For optimal performance, the overall dictionary cache hit ratio should be greater than 90 To monitor the efficiency of the Data Dictionary Cache, below sql statement can be used class wikitable border 1 select 1 sum getmisses sum gets sum getmisses 100 Dictionary Hit Rate from v rowcache A figure of 90 95 should be maintained if the rate starts to drop, SHARED POOL SIZE should be increased Category Database stubs Category Oracle Corporation ... more details
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