{"id":4304,"date":"2024-07-19T04:56:08","date_gmt":"2024-07-19T04:56:08","guid":{"rendered":"https:\/\/crea.space\/?post_type=dictionary&#038;p=4304"},"modified":"2024-07-19T04:56:08","modified_gmt":"2024-07-19T04:56:08","slug":"object-caching","status":"publish","type":"dictionary","link":"https:\/\/crea.space\/web-development-dictionary\/object-caching","title":{"rendered":"Object caching"},"content":{"rendered":"\n<p>Object caching is a technique that stores the results of expensive operations, data retrievals, or frequently accessed objects in a temporary storage location called a cache. This process enhances the efficiency and performance of software applications by reducing the need for repetitive and costly operations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-concepts\">Key concepts<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cache:<\/strong> A high-speed storage layer that temporarily holds data and objects for quick access.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Object:<\/strong> In this context, it refers to any data structure or result that you can store in the cache.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cache hit:<\/strong> You experience a cache hit when you find the requested data in the cache, leading to faster retrieval.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cache miss:<\/strong> You experience a cache miss when you do not find the requested data in the cache, necessitating a fetch from the original source.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-purpose-and-benefits\">Purpose and benefits<\/h2>\n\n\n\n<p>Object caching serves several critical purposes in computing. One of the primary benefits is performance improvement. By storing frequently used objects in fast-access storage, you significantly reduce the time needed to access data. This is crucial for applications that require quick data retrieval to ensure smooth operation and responsiveness. Additionally, object caching aids in resource optimization. It minimizes the load on databases and other data sources by reducing the frequency of expensive operations, allowing these resources to be used more efficiently. Scalability is another key advantage of object caching. By handling a larger number of requests without degradation in performance, systems can better accommodate growth and increased demand. Finally, object caching reduces latency, which directly improves the user experience by decreasing the time taken to load data. This results in faster, more efficient applications that can meet the needs of users effectively.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-types-of-caching\">Types of caching<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>In-memory caching:<\/strong> Stores objects in the system\u2019s RAM for very fast access. Examples include Redis and Memcached.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Distributed caching:<\/strong> Uses multiple nodes to store cache data, suitable for large-scale applications. Examples include Apache Ignite and Amazon DynamoDB Accelerator (DAX).<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Persistent caching:<\/strong> Stores cache data on disk to persist across system reboots. Examples include Ehcache and Hazelcast.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-strategies\">Strategies<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Write-through cache:<\/strong> The system writes data to both the cache and the backing store simultaneously.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Write-around cache:<\/strong> The system writes data directly to the backing store, bypassing the cache.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Write-back cache:<\/strong> The system initially writes data to the cache only and writes to the backing store later.<span class=\"\" data-state=\"closed\"><span class=\"flex h-[30px] w-[30px] items-center justify-center\"><path fill=\"currentColor\" fill-rule=\"evenodd\" d=\"M11 4.91a.5.5 0 0 0-.838-.369L6.676 7.737A1 1 0 0 1 6 8H4a1 1 0 0 0-1 1v6a1 1 0 0 0 1 1h2a1 1 0 0 1 .676.263l3.486 3.196A.5.5 0 0 0 11 19.09zM8.81 3.067C10.415 1.597 13 2.735 13 4.91v14.18c0 2.175-2.586 3.313-4.19 1.843L5.612 18H4a3 3 0 0 1-3-3V9a3 3 0 0 1 3-3h1.611zm11.507 3.29a1 1 0 0 1 1.355.401A10.96 10.96 0 0 1 23 12c0 1.85-.458 3.597-1.268 5.13a1 1 0 1 1-1.768-.934A8.96 8.96 0 0 0 21 12a8.96 8.96 0 0 0-1.085-4.287 1 1 0 0 1 .402-1.356M15.799 7.9a1 1 0 0 1 1.4.2 6.48 6.48 0 0 1 1.3 3.9c0 1.313-.39 2.537-1.06 3.56a1 1 0 0 1-1.673-1.096A4.47 4.47 0 0 0 16.5 12a4.47 4.47 0 0 0-.9-2.7 1 1 0 0 1 .2-1.4\" clip-rule=\"evenodd\"><\/path><path fill=\"currentColor\" fill-rule=\"evenodd\" d=\"M7 5a3 3 0 0 1 3-3h9a3 3 0 0 1 3 3v9a3 3 0 0 1-3 3h-2v2a3 3 0 0 1-3 3H5a3 3 0 0 1-3-3v-9a3 3 0 0 1 3-3h2zm2 2h5a3 3 0 0 1 3 3v5h2a1 1 0 0 0 1-1V5a1 1 0 0 0-1-1h-9a1 1 0 0 0-1 1zM5 9a1 1 0 0 0-1 1v9a1 1 0 0 0 1 1h9a1 1 0 0 0 1-1v-9a1 1 0 0 0-1-1z\" clip-rule=\"evenodd\"><\/path><path fill=\"currentColor\" d=\"M3.07 10.876C3.623 6.436 7.41 3 12 3a9.15 9.15 0 0 1 6.012 2.254V4a1 1 0 1 1 2 0v4a1 1 0 0 1-1 1H15a1 1 0 1 1 0-2h1.957A7.15 7.15 0 0 0 12 5a7 7 0 0 0-6.946 6.124 1 1 0 1 1-1.984-.248m16.992 1.132a1 1 0 0 1 .868 1.116C20.377 17.564 16.59 21 12 21a9.15 9.15 0 0 1-6-2.244V20a1 1 0 1 1-2 0v-4a1 1 0 0 1 1-1h4a1 1 0 1 1 0 2H7.043A7.15 7.15 0 0 0 12 19a7 7 0 0 0 6.946-6.124 1 1 0 0 1 1.116-.868\"><\/path><path fill=\"currentColor\" fill-rule=\"evenodd\" d=\"M11.873 21.496a1 1 0 0 1-.992.496l-.454-.056A4 4 0 0 1 7.1 16.79L7.65 15h-.718c-2.637 0-4.553-2.508-3.859-5.052l1.364-5A4 4 0 0 1 8.296 2h9.709a3 3 0 0 1 3 3v7a3 3 0 0 1-3 3h-2c-.26 0-.5.14-.628.364zM14.005 4h-5.71a2 2 0 0 0-1.929 1.474l-1.363 5A2 2 0 0 0 6.933 13h2.072a1 1 0 0 1 .955 1.294l-.949 3.084a2 2 0 0 0 1.462 2.537l3.167-5.543a2.72 2.72 0 0 1 1.364-1.182V5a1 1 0 0 0-1-1m3 9V5c0-.35-.06-.687-.171-1h1.17a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1z\" clip-rule=\"evenodd\"><\/path><\/span><path fill=\"currentColor\" d=\"M19.898.855a.4.4 0 0 0-.795 0c-.123 1.064-.44 1.802-.943 2.305-.503.503-1.241.82-2.306.943a.4.4 0 0 0 .001.794c1.047.119 1.801.436 2.317.942.512.504.836 1.241.93 2.296a.4.4 0 0 0 .796 0c.09-1.038.413-1.792.93-2.308.515-.516 1.269-.839 2.306-.928a.4.4 0 0 0 .001-.797c-1.055-.094-1.792-.418-2.296-.93-.506-.516-.823-1.27-.941-2.317Z\"><\/path><path fill=\"currentColor\" d=\"M12.001 1.5a1 1 0 0 1 .993.887c.313 2.77 1.153 4.775 2.5 6.146 1.34 1.366 3.3 2.223 6.095 2.47a1 1 0 0 1-.003 1.993c-2.747.238-4.75 1.094-6.123 2.467-1.373 1.374-2.229 3.376-2.467 6.123a1 1 0 0 1-1.992.003c-.248-2.795-1.105-4.754-2.47-6.095-1.372-1.347-3.376-2.187-6.147-2.5a1 1 0 0 1-.002-1.987c2.818-.325 4.779-1.165 6.118-2.504 1.339-1.34 2.179-3.3 2.504-6.118A1 1 0 0 1 12 1.5ZM6.725 11.998c1.234.503 2.309 1.184 3.21 2.069.877.861 1.56 1.888 2.063 3.076.5-1.187 1.18-2.223 2.051-3.094.871-.87 1.907-1.55 3.094-2.05-1.188-.503-2.215-1.187-3.076-2.064-.885-.901-1.566-1.976-2.069-3.21-.505 1.235-1.19 2.3-2.081 3.192-.891.89-1.957 1.576-3.192 2.082Z\"><\/path><span class=\"overflow-hidden text-clip whitespace-nowrap text-sm\"><\/span><\/span><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-challenges\">Challenges<\/h2>\n\n\n\n<p>While object caching provides numerous benefits, it also introduces several challenges. Cache invalidation, for instance, involves keeping the cache updated with the most current data, which can be complex and error-prone. You face another critical challenge in ensuring consistency between the cached data and the underlying data source, as discrepancies can lead to outdated or incorrect information being served. Additionally, you must carefully consider eviction policies to decide which objects to remove from the cache when it reaches capacity. <path fill=\"currentColor\" fill-rule=\"evenodd\" d=\"M11 4.91a.5.5 0 0 0-.838-.369L6.676 7.737A1 1 0 0 1 6 8H4a1 1 0 0 0-1 1v6a1 1 0 0 0 1 1h2a1 1 0 0 1 .676.263l3.486 3.196A.5.5 0 0 0 11 19.09zM8.81 3.067C10.415 1.597 13 2.735 13 4.91v14.18c0 2.175-2.586 3.313-4.19 1.843L5.612 18H4a3 3 0 0 1-3-3V9a3 3 0 0 1 3-3h1.611zm11.507 3.29a1 1 0 0 1 1.355.401A10.96 10.96 0 0 1 23 12c0 1.85-.458 3.597-1.268 5.13a1 1 0 1 1-1.768-.934A8.96 8.96 0 0 0 21 12a8.96 8.96 0 0 0-1.085-4.287 1 1 0 0 1 .402-1.356M15.799 7.9a1 1 0 0 1 1.4.2 6.48 6.48 0 0 1 1.3 3.9c0 1.313-.39 2.537-1.06 3.56a1 1 0 0 1-1.673-1.096A4.47 4.47 0 0 0 16.5 12a4.47 4.47 0 0 0-.9-2.7 1 1 0 0 1 .2-1.4\" clip-rule=\"evenodd\"><\/path><path fill=\"currentColor\" fill-rule=\"evenodd\" d=\"M7 5a3 3 0 0 1 3-3h9a3 3 0 0 1 3 3v9a3 3 0 0 1-3 3h-2v2a3 3 0 0 1-3 3H5a3 3 0 0 1-3-3v-9a3 3 0 0 1 3-3h2zm2 2h5a3 3 0 0 1 3 3v5h2a1 1 0 0 0 1-1V5a1 1 0 0 0-1-1h-9a1 1 0 0 0-1 1zM5 9a1 1 0 0 0-1 1v9a1 1 0 0 0 1 1h9a1 1 0 0 0 1-1v-9a1 1 0 0 0-1-1z\" clip-rule=\"evenodd\"><\/path><path fill=\"currentColor\" d=\"M3.07 10.876C3.623 6.436 7.41 3 12 3a9.15 9.15 0 0 1 6.012 2.254V4a1 1 0 1 1 2 0v4a1 1 0 0 1-1 1H15a1 1 0 1 1 0-2h1.957A7.15 7.15 0 0 0 12 5a7 7 0 0 0-6.946 6.124 1 1 0 1 1-1.984-.248m16.992 1.132a1 1 0 0 1 .868 1.116C20.377 17.564 16.59 21 12 21a9.15 9.15 0 0 1-6-2.244V20a1 1 0 1 1-2 0v-4a1 1 0 0 1 1-1h4a1 1 0 1 1 0 2H7.043A7.15 7.15 0 0 0 12 19a7 7 0 0 0 6.946-6.124 1 1 0 0 1 1.116-.868\"><\/path><path fill=\"currentColor\" fill-rule=\"evenodd\" d=\"M11.873 21.496a1 1 0 0 1-.992.496l-.454-.056A4 4 0 0 1 7.1 16.79L7.65 15h-.718c-2.637 0-4.553-2.508-3.859-5.052l1.364-5A4 4 0 0 1 8.296 2h9.709a3 3 0 0 1 3 3v7a3 3 0 0 1-3 3h-2c-.26 0-.5.14-.628.364zM14.005 4h-5.71a2 2 0 0 0-1.929 1.474l-1.363 5A2 2 0 0 0 6.933 13h2.072a1 1 0 0 1 .955 1.294l-.949 3.084a2 2 0 0 0 1.462 2.537l3.167-5.543a2.72 2.72 0 0 1 1.364-1.182V5a1 1 0 0 0-1-1m3 9V5c0-.35-.06-.687-.171-1h1.17a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1z\" clip-rule=\"evenodd\"><\/path><path fill=\"currentColor\" d=\"M13.091 4.246 4.682 14H11a1 1 0 0 1 .973 1.23l-1.064 4.524L19.318 10H13a1 1 0 0 1-.973-1.229l1.064-4.525Zm-.848-2.08c1.195-1.386 3.448-.238 3.029 1.544L14.262 8h5.056c1.711 0 2.632 2.01 1.514 3.306l-9.075 10.528c-1.195 1.386-3.448.238-3.029-1.544L9.738 16H4.681c-1.711 0-2.632-2.01-1.514-3.306l9.075-10.527Z\"><\/path><span class=\"overflow-hidden text-clip whitespace-nowrap text-sm\"><\/span>This decision impacts the cache's efficiency and effectiveness, requiring a balance between retaining frequently accessed objects and making room for new ones.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-eviction-policies\">Eviction policies<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Least recently used (LRU):<\/strong> Removes the objects that have not been accessed for the longest time.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Least frequently used (LFU):<\/strong> Evicts objects that are accessed the least often.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>First in, first out (FIFO):<\/strong> Removes the oldest objects in the cache first.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-applications\">Applications<\/h2>\n\n\n\n<p>Object caching is widely used in various domains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Web development:<\/strong> Speeds up website loading times by caching HTML, CSS, and JavaScript files.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Database systems:<\/strong> Improves query performance by caching frequently accessed database records.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Distributed systems:<\/strong> Enhances performance and scalability in cloud-based applications.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p>Object caching is an essential technique for optimizing the performance and efficiency of software applications. By strategically storing and managing frequently accessed data, it minimizes latency, reduces server load, and provides a smoother user experience. Despite its complexity and the challenges it presents, effective implementation of object caching can yield significant benefits in various computing environments.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Object caching enhances application performance by storing frequently accessed data in fast-access storage.<\/p>\n","protected":false},"featured_media":4305,"template":"","class_list":["post-4304","dictionary","type-dictionary","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.4 (Yoast SEO v23.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Object caching - CREA SPACE Web Development Dictionary<\/title>\n<meta name=\"description\" content=\"Object caching enhances application performance by storing frequently accessed data in fast-access storage.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/crea.space\/web-development-dictionary\/object-caching\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Object caching\" \/>\n<meta property=\"og:description\" content=\"Object caching enhances application performance by storing frequently accessed data in fast-access storage.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/crea.space\/web-development-dictionary\/object-caching\" \/>\n<meta property=\"og:site_name\" content=\"CREA SPACE\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/creaspaceltd\" \/>\n<meta property=\"og:image\" content=\"https:\/\/crea.space\/wp-content\/uploads\/2024\/07\/crea-space-web-development-dictionary-object-caching-featured-image-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1703\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@creaspaceltd\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/crea.space\/web-development-dictionary\/object-caching\",\"url\":\"https:\/\/crea.space\/web-development-dictionary\/object-caching\",\"name\":\"Object caching - 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