{"id":475,"date":"2026-05-02T05:55:00","date_gmt":"2026-05-02T05:55:00","guid":{"rendered":"https:\/\/harshad-sonawane.com\/blog\/?p=475"},"modified":"2026-04-07T10:31:45","modified_gmt":"2026-04-07T10:31:45","slug":"java-disruptor-high-throughput-event-driven-systems","status":"publish","type":"post","link":"https:\/\/harshad-sonawane.com\/blog\/java-disruptor-high-throughput-event-driven-systems\/","title":{"rendered":"Designing High-Throughput Event-Driven Systems Using Java &amp; Disruptor Pattern"},"content":{"rendered":"<p data-start=\"244\" data-end=\"541\">In today\u2019s world of real-time systems, traditional architectures often fail to meet the demands of ultra-low latency and high throughput. Whether you&#8217;re building trading platforms, telemetry pipelines, or high-scale APIs, the ability to process millions of events per second is no longer optional.<\/p>\n<p data-start=\"543\" data-end=\"666\">This is where the Disruptor pattern, popularized by the <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">LMAX Exchange<\/span><\/span>, becomes a powerful solution.<\/p>\n<p data-start=\"668\" data-end=\"762\">Let\u2019s explore how to design high-throughput event-driven systems using <a href=\"https:\/\/harshad-sonawane.com\/blog\/reduce-cloud-costs-java-applications\/\">Java<\/a> and the Disruptor.<\/p>\n<hr data-start=\"764\" data-end=\"767\" \/>\n<h2 data-section-id=\"1qz5hqr\" data-start=\"769\" data-end=\"823\">Understanding the Limitations of Traditional Queues<\/h2>\n<p data-start=\"825\" data-end=\"856\">Most Java applications rely on:<\/p>\n<ul data-start=\"858\" data-end=\"966\">\n<li data-section-id=\"1cibpna\" data-start=\"858\" data-end=\"921\">Blocking queues (<code data-start=\"877\" data-end=\"897\">ArrayBlockingQueue<\/code>, <code data-start=\"899\" data-end=\"920\">LinkedBlockingQueue<\/code>)<\/li>\n<li data-section-id=\"1908oz0\" data-start=\"922\" data-end=\"966\">Thread pools with producer-consumer models<\/li>\n<\/ul>\n<p data-start=\"968\" data-end=\"1018\">While these are easy to implement, they introduce:<\/p>\n<ul data-start=\"1020\" data-end=\"1128\">\n<li data-section-id=\"1q5vybm\" data-start=\"1020\" data-end=\"1039\">Lock contention<\/li>\n<li data-section-id=\"7m9npf\" data-start=\"1040\" data-end=\"1070\">Context switching overhead<\/li>\n<li data-section-id=\"89xs7i\" data-start=\"1071\" data-end=\"1102\"><a href=\"https:\/\/harshad-sonawane.com\/blog\/java-memory-management-heap-gc-best\/\">Garbage collection<\/a> pressure<\/li>\n<li data-section-id=\"8b9ibw\" data-start=\"1103\" data-end=\"1128\">Unpredictable latency<\/li>\n<\/ul>\n<p data-start=\"1130\" data-end=\"1208\">For high-throughput systems, these inefficiencies become critical bottlenecks.<\/p>\n<hr data-start=\"1210\" data-end=\"1213\" \/>\n<h2 data-section-id=\"pga1ob\" data-start=\"1215\" data-end=\"1248\">What is the Disruptor Pattern?<\/h2>\n<p data-start=\"1250\" data-end=\"1379\">The Disruptor is a lock-free, high-performance inter-thread messaging library developed by <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">LMAX Exchange<\/span><\/span>.<\/p>\n<p data-start=\"1381\" data-end=\"1399\">It is designed to:<\/p>\n<ul data-start=\"1401\" data-end=\"1490\">\n<li data-section-id=\"660ylg\" data-start=\"1401\" data-end=\"1424\">Maximize throughput<\/li>\n<li data-section-id=\"bvk54o\" data-start=\"1425\" data-end=\"1445\">Minimize latency<\/li>\n<li data-section-id=\"doosdo\" data-start=\"1446\" data-end=\"1490\">Eliminate unnecessary memory allocations<\/li>\n<\/ul>\n<p data-start=\"1492\" data-end=\"1597\">Instead of traditional queues, it uses a <strong data-start=\"1533\" data-end=\"1562\">pre-allocated ring buffer<\/strong> for communication between threads.<\/p>\n<hr data-start=\"1599\" data-end=\"1602\" \/>\n<h2 data-section-id=\"1hv0tvu\" data-start=\"1604\" data-end=\"1636\">Understanding the Ring Buffer<\/h2>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" alt=\"https:\/\/miro.medium.com\/0%2AVxXTYKozLnStzmBF.png\" referrerpolicy=\"no-referrer\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/miro.medium.com\/0%2AVxXTYKozLnStzmBF.png\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)]\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" alt=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/f\/fd\/Circular_Buffer_Animation.gif\/500px-Circular_Buffer_Animation.gif\" referrerpolicy=\"no-referrer\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/f\/fd\/Circular_Buffer_Animation.gif\/500px-Circular_Buffer_Animation.gif\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" alt=\"https:\/\/pages.mtu.edu\/~shene\/NSF-3\/e-Book\/SEMA\/DIAGRAM-buffer.jpg\" referrerpolicy=\"no-referrer\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/pages.mtu.edu\/~shene\/NSF-3\/e-Book\/SEMA\/DIAGRAM-buffer.jpg\" \/><\/div>\n<div class=\"pointer-events-none absolute inset-x-2 bottom-2 z-0 flex max-w-[calc(100%-1rem)] flex-wrap items-end justify-end gap-1.5\">\n<div class=\"shrink-0\">\n<div class=\"flex items-center gap-1 rounded-full px-2 py-1.5 text-white backdrop-blur-md backdrop-brightness-75\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p data-start=\"1680\" data-end=\"1742\">The ring buffer is a fixed-size circular data structure where:<\/p>\n<ul data-start=\"1744\" data-end=\"1813\">\n<li data-section-id=\"1uesoxh\" data-start=\"1744\" data-end=\"1772\">Producers publish events<\/li>\n<li data-section-id=\"1rtboo9\" data-start=\"1773\" data-end=\"1813\">Consumers process events in sequence<\/li>\n<\/ul>\n<h3 data-section-id=\"1865oiv\" data-start=\"1815\" data-end=\"1837\">Why it works well:<\/h3>\n<ul data-start=\"1839\" data-end=\"1947\">\n<li data-section-id=\"8ofwhw\" data-start=\"1839\" data-end=\"1871\">No runtime memory allocation<\/li>\n<li data-section-id=\"14uvh94\" data-start=\"1872\" data-end=\"1904\">Better CPU cache utilization<\/li>\n<li data-section-id=\"xoa8ks\" data-start=\"1905\" data-end=\"1947\">Predictable and consistent performance<\/li>\n<\/ul>\n<hr data-start=\"1949\" data-end=\"1952\" \/>\n<h2 data-section-id=\"14hswuj\" data-start=\"1954\" data-end=\"1985\">Core Components of Disruptor<\/h2>\n<h3 data-section-id=\"6y3xe2\" data-start=\"1987\" data-end=\"1996\">Event<\/h3>\n<p data-start=\"1998\" data-end=\"2052\">A simple object representing the data being processed:<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037c8\">class<\/span><span> <\/span><span class=\"\u037ce\">OrderEvent<\/span><span> {<\/span><br \/>\n<span> <\/span><span class=\"\u037c8\">private<\/span><span> <\/span><span class=\"\u037ce\">long<\/span><span> <\/span><span class=\"\u037ce\">orderId<\/span><span>;<\/span><br \/>\n<span>}<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"2114\" data-end=\"2117\" \/>\n<h3 data-section-id=\"1gp4ke\" data-start=\"2119\" data-end=\"2136\">Event Factory<\/h3>\n<p data-start=\"2138\" data-end=\"2167\">Used to pre-allocate objects:<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037ce\">EventFactory<\/span><span>&lt;<\/span><span class=\"\u037ce\">OrderEvent<\/span><span>&gt; <\/span><span class=\"\u037ce\">factory<\/span><span> <\/span><span class=\"\u037c8\">=<\/span><span> <\/span><span class=\"\u037ce\">OrderEvent<\/span><span>::<\/span><span class=\"\u037c8\">new<\/span><span>;<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"2234\" data-end=\"2237\" \/>\n<h3 data-section-id=\"162n8yc\" data-start=\"2239\" data-end=\"2254\">Ring Buffer<\/h3>\n<p data-start=\"2256\" data-end=\"2293\">Central structure for storing events:<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037ce\">RingBuffer<\/span><span>&lt;<\/span><span class=\"\u037ce\">OrderEvent<\/span><span>&gt; <\/span><span class=\"\u037ce\">ringBuffer<\/span><span> <\/span><span class=\"\u037c8\">=<\/span><span> <\/span><span class=\"\u037ce\">disruptor<\/span><span class=\"\u037c8\">.<\/span><span class=\"\u037ce\">getRingBuffer<\/span><span>();<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"2371\" data-end=\"2374\" \/>\n<h3 data-section-id=\"1oe5fea\" data-start=\"2376\" data-end=\"2393\">Event Handler<\/h3>\n<p data-start=\"2395\" data-end=\"2425\">Consumes and processes events:<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037ce\">c<\/span><span class=\"\u037c8\">lass<\/span><span> <\/span><span class=\"\u037ce\">OrderHandler<\/span><span> <\/span><span class=\"\u037c8\">implements<\/span><span> <\/span><span class=\"\u037ce\">EventHandler<\/span><span>&lt;<\/span><span class=\"\u037ce\">OrderEvent<\/span><span>&gt; {<\/span><br \/>\n<span> <\/span><span class=\"\u037c8\">public<\/span><span> <\/span><span class=\"\u037c8\">void<\/span><span> <\/span><span class=\"\u037ce\">onEvent<\/span><span>(<\/span><span class=\"\u037ce\">OrderEvent<\/span><span> <\/span><span class=\"\u037ce\">event<\/span><span>, <\/span><span class=\"\u037ce\">long<\/span><span> <\/span><span class=\"\u037ce\">sequence<\/span><span>, <\/span><span class=\"\u037ce\">boolean<\/span><span> <\/span><span class=\"\u037ce\">endOfBatch<\/span><span>) {<\/span><br \/>\n<span> <\/span><span class=\"\u037c6\">\/\/ processing logic<\/span><br \/>\n<span> }<\/span><br \/>\n<span>}<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"2612\" data-end=\"2615\" \/>\n<h3 data-section-id=\"1xaengu\" data-start=\"2617\" data-end=\"2629\">Producer<\/h3>\n<p data-start=\"2631\" data-end=\"2669\">Publishes events into the ring buffer:<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037ce\">long<\/span><span> <\/span><span class=\"\u037ce\">sequence<\/span><span> <\/span><span class=\"\u037c8\">=<\/span><span> <\/span><span class=\"\u037ce\">ringBuffer<\/span><span class=\"\u037c8\">.<\/span><span class=\"\u037ce\">next<\/span><span>();<\/span><br \/>\n<span class=\"\u037c8\">try<\/span><span> {<\/span><br \/>\n<span> <\/span><span class=\"\u037ce\">OrderEvent<\/span><span> <\/span><span class=\"\u037ce\">event<\/span><span> <\/span><span class=\"\u037c8\">=<\/span><span> <\/span><span class=\"\u037ce\">ringBuffer<\/span><span class=\"\u037c8\">.<\/span><span class=\"\u037ce\">get<\/span><span>(<\/span><span class=\"\u037ce\">sequence<\/span><span>);<\/span><br \/>\n<span> <\/span><span class=\"\u037ce\">event<\/span><span class=\"\u037c8\">.<\/span><span class=\"\u037ce\">setOrderId<\/span><span>(<\/span><span class=\"\u037cb\">123<\/span><span>);<\/span><br \/>\n<span>} <\/span><span class=\"\u037c8\">finally<\/span><span> {<\/span><br \/>\n<span> <\/span><span class=\"\u037ce\">ringBuffer<\/span><span class=\"\u037c8\">.<\/span><span class=\"\u037ce\">publish<\/span><span>(<\/span><span class=\"\u037ce\">sequence<\/span><span>);<\/span><br \/>\n<span>}<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"2849\" data-end=\"2852\" \/>\n<h2 data-section-id=\"1hp8qvc\" data-start=\"2854\" data-end=\"2886\">Designing for High Throughput<\/h2>\n<h3 data-section-id=\"pm2eud\" data-start=\"2888\" data-end=\"2915\">Single Writer Principle<\/h3>\n<p data-start=\"2917\" data-end=\"3028\">Disruptor performs best when contention is minimized. A single producer model reduces synchronization overhead.<\/p>\n<hr data-start=\"3030\" data-end=\"3033\" \/>\n<h3 data-section-id=\"1gkvl1y\" data-start=\"3035\" data-end=\"3062\">Wait Strategy Selection<\/h3>\n<p data-start=\"3064\" data-end=\"3121\">Wait strategies define how consumers wait for new events.<\/p>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table data-start=\"3123\" data-end=\"3309\" class=\"w-fit min-w-(--thread-content-width)\">\n<thead data-start=\"3123\" data-end=\"3153\">\n<tr data-start=\"3123\" data-end=\"3153\">\n<th data-start=\"3123\" data-end=\"3134\" data-col-size=\"sm\" class=\"\">Strategy<\/th>\n<th data-start=\"3134\" data-end=\"3153\" data-col-size=\"sm\" class=\"\">Characteristics<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3184\" data-end=\"3309\">\n<tr data-start=\"3184\" data-end=\"3229\">\n<td data-start=\"3184\" data-end=\"3195\" data-col-size=\"sm\">BusySpin<\/td>\n<td data-col-size=\"sm\" data-start=\"3195\" data-end=\"3229\">Lowest latency, high CPU usage<\/td>\n<\/tr>\n<tr data-start=\"3230\" data-end=\"3262\">\n<td data-start=\"3230\" data-end=\"3241\" data-col-size=\"sm\">Yielding<\/td>\n<td data-col-size=\"sm\" data-start=\"3241\" data-end=\"3262\">Balanced approach<\/td>\n<\/tr>\n<tr data-start=\"3263\" data-end=\"3309\">\n<td data-start=\"3263\" data-end=\"3274\" data-col-size=\"sm\">Blocking<\/td>\n<td data-col-size=\"sm\" data-start=\"3274\" data-end=\"3309\">Lower CPU usage, higher latency<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"3311\" data-end=\"3319\">Example:<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037c8\">new<\/span><span> <\/span><span class=\"\u037ce\">YieldingWaitStrategy<\/span><span>();<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"3361\" data-end=\"3364\" \/>\n<h3 data-section-id=\"1ie1x9t\" data-start=\"3366\" data-end=\"3386\">Batch Processing<\/h3>\n<p data-start=\"3388\" data-end=\"3458\">Processing events in batches improves throughput and cache efficiency.<\/p>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute inset-x-4 top-12 bottom-4\">\n<div class=\"pointer-events-none sticky z-40 shrink-0 z-1!\">\n<div class=\"sticky bg-token-border-light\"><\/div>\n<\/div>\n<\/div>\n<div class=\"w-full overflow-x-hidden overflow-y-auto\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch \u037c5 \u037cj\">\n<div class=\"cm-scroller\">\n<div class=\"cm-content q9tKkq_readonly\"><span class=\"\u037c8\">if<\/span><span> (<\/span><span class=\"\u037ce\">endOfBatch<\/span><span>) {<\/span><br \/>\n<span> <\/span><span class=\"\u037c6\">\/\/ batch processing logic<\/span><br \/>\n<span>}<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"3523\" data-end=\"3526\" \/>\n<h3 data-section-id=\"7v6nja\" data-start=\"3528\" data-end=\"3551\">Avoid False Sharing<\/h3>\n<p data-start=\"3553\" data-end=\"3697\">False sharing can degrade performance. Disruptor internally handles padding, but awareness is important when designing adjacent <a href=\"https:\/\/harshad-sonawane.com\/blog\/advanced-java-collections-internals-performance\/\">data structures<\/a>.<\/p>\n<hr data-start=\"3699\" data-end=\"3702\" \/>\n<h3 data-section-id=\"1az7jrb\" data-start=\"3704\" data-end=\"3731\">Pre-Allocation Strategy<\/h3>\n<p data-start=\"3733\" data-end=\"3774\">Allocate all required objects upfront to:<\/p>\n<ul data-start=\"3776\" data-end=\"3831\">\n<li data-section-id=\"11kn0ll\" data-start=\"3776\" data-end=\"3798\">Reduce GC pressure<\/li>\n<li data-section-id=\"1oxamdq\" data-start=\"3799\" data-end=\"3831\">Maintain predictable latency<\/li>\n<\/ul>\n<hr data-start=\"3833\" data-end=\"3836\" \/>\n<h2 data-section-id=\"18pwj5f\" data-start=\"3838\" data-end=\"3862\">Architecture Overview<\/h2>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" alt=\"https:\/\/java-design-patterns.com\/assets\/img\/eda-architecture-diagram.e2ffe1bb.png\" referrerpolicy=\"no-referrer\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/java-design-patterns.com\/assets\/img\/eda-architecture-diagram.e2ffe1bb.png\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)]\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" alt=\"https:\/\/martinfowler.com\/articles\/images\/lmax\/arch-full.png\" referrerpolicy=\"no-referrer\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/martinfowler.com\/articles\/images\/lmax\/arch-full.png\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" alt=\"https:\/\/miro.medium.com\/v2\/resize%3Afit%3A3332\/1%2AI6MHiMz8QYBR0GNjHeUwog.png\" referrerpolicy=\"no-referrer\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/miro.medium.com\/v2\/resize%3Afit%3A3332\/1%2AI6MHiMz8QYBR0GNjHeUwog.png\" \/><\/div>\n<div class=\"pointer-events-none absolute inset-x-2 bottom-2 z-0 flex max-w-[calc(100%-1rem)] flex-wrap items-end justify-end gap-1.5\">\n<div class=\"shrink-0\">\n<div class=\"flex items-center gap-1 rounded-full px-2 py-1.5 text-white backdrop-blur-md backdrop-brightness-75\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" class=\"h-4 w-4\"><use href=\"\/cdn\/assets\/sprites-core-dd80ba6x.svg#266724\" fill=\"currentColor\"><\/use><\/svg><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 data-section-id=\"6uklta\" data-start=\"3906\" data-end=\"3915\">Flow:<\/h3>\n<ol data-start=\"3917\" data-end=\"4059\">\n<li data-section-id=\"op64q9\" data-start=\"3917\" data-end=\"3946\">Producer publishes event<\/li>\n<li data-section-id=\"1fxoca3\" data-start=\"3947\" data-end=\"3976\">Ring buffer stores event<\/li>\n<li data-section-id=\"1kxfot9\" data-start=\"3977\" data-end=\"4019\">Consumers process events sequentially<\/li>\n<li data-section-id=\"1px1yac\" data-start=\"4020\" data-end=\"4059\">Results flow to downstream systems<\/li>\n<\/ol>\n<hr data-start=\"4061\" data-end=\"4064\" \/>\n<h2 data-section-id=\"7zbpd1\" data-start=\"4066\" data-end=\"4091\">Performance Advantages<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table data-start=\"4093\" data-end=\"4321\" class=\"w-fit min-w-(--thread-content-width)\">\n<thead data-start=\"4093\" data-end=\"4136\">\n<tr data-start=\"4093\" data-end=\"4136\">\n<th data-start=\"4093\" data-end=\"4102\" data-col-size=\"sm\" class=\"\">Metric<\/th>\n<th data-start=\"4102\" data-end=\"4123\" data-col-size=\"sm\" class=\"\">Traditional Queues<\/th>\n<th data-start=\"4123\" data-end=\"4136\" data-col-size=\"sm\" class=\"\">Disruptor<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4178\" data-end=\"4321\">\n<tr data-start=\"4178\" data-end=\"4210\">\n<td data-start=\"4178\" data-end=\"4188\" data-col-size=\"sm\">Latency<\/td>\n<td data-col-size=\"sm\" data-start=\"4188\" data-end=\"4197\">Higher<\/td>\n<td data-col-size=\"sm\" data-start=\"4197\" data-end=\"4210\">Ultra-low<\/td>\n<\/tr>\n<tr data-start=\"4211\" data-end=\"4248\">\n<td data-start=\"4211\" data-end=\"4224\" data-col-size=\"sm\">Throughput<\/td>\n<td data-col-size=\"sm\" data-start=\"4224\" data-end=\"4235\">Moderate<\/td>\n<td data-col-size=\"sm\" data-start=\"4235\" data-end=\"4248\">Very high<\/td>\n<\/tr>\n<tr data-start=\"4249\" data-end=\"4288\">\n<td data-start=\"4249\" data-end=\"4263\" data-col-size=\"sm\">GC Overhead<\/td>\n<td data-col-size=\"sm\" data-start=\"4263\" data-end=\"4277\">Significant<\/td>\n<td data-col-size=\"sm\" data-start=\"4277\" data-end=\"4288\">Minimal<\/td>\n<\/tr>\n<tr data-start=\"4289\" data-end=\"4321\">\n<td data-start=\"4289\" data-end=\"4303\" data-col-size=\"sm\">Scalability<\/td>\n<td data-col-size=\"sm\" data-start=\"4303\" data-end=\"4313\">Limited<\/td>\n<td data-col-size=\"sm\" data-start=\"4313\" data-end=\"4321\">High<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"4323\" data-end=\"4326\" \/>\n<h2 data-section-id=\"1j30au4\" data-start=\"4328\" data-end=\"4356\">When Not to Use Disruptor<\/h2>\n<p data-start=\"4358\" data-end=\"4414\">Disruptor is not always the right choice. Avoid it when:<\/p>\n<ul data-start=\"4416\" data-end=\"4512\">\n<li data-section-id=\"zgmhhh\" data-start=\"4416\" data-end=\"4438\">System load is low<\/li>\n<li data-section-id=\"4wzguq\" data-start=\"4439\" data-end=\"4475\">Simpler solutions are sufficient<\/li>\n<li data-section-id=\"1hnw7zr\" data-start=\"4476\" data-end=\"4512\">Team lacks concurrency expertise<\/li>\n<\/ul>\n<p data-start=\"4514\" data-end=\"4577\">In such cases, traditional approaches may be more maintainable.<\/p>\n<hr data-start=\"4579\" data-end=\"4582\" \/>\n<h2 data-section-id=\"1rouptg\" data-start=\"4584\" data-end=\"4607\">Real-World Use Cases<\/h2>\n<ul data-start=\"4609\" data-end=\"4722\">\n<li data-section-id=\"9yxi4a\" data-start=\"4609\" data-end=\"4643\">High-frequency trading systems<\/li>\n<li data-section-id=\"tmfm19\" data-start=\"4644\" data-end=\"4677\">Real-time analytics pipelines<\/li>\n<li data-section-id=\"1v0xjok\" data-start=\"4678\" data-end=\"4700\">Logging frameworks<\/li>\n<li data-section-id=\"1v0gvkg\" data-start=\"4701\" data-end=\"4722\">Messaging systems<\/li>\n<\/ul>\n<hr data-start=\"4724\" data-end=\"4727\" \/>\n<h2 data-section-id=\"1t9vvr5\" data-start=\"4729\" data-end=\"4754\">Best Practices Summary<\/h2>\n<ul data-start=\"4756\" data-end=\"4956\">\n<li data-section-id=\"nozbnh\" data-start=\"4756\" data-end=\"4799\">Prefer a single producer where possible<\/li>\n<li data-section-id=\"srbt18\" data-start=\"4800\" data-end=\"4834\">Choose the right wait strategy<\/li>\n<li data-section-id=\"1i80j1r\" data-start=\"4835\" data-end=\"4867\">Minimize runtime allocations<\/li>\n<li data-section-id=\"oia6ie\" data-start=\"4868\" data-end=\"4916\">Monitor latency metrics such as P99 and P999<\/li>\n<li data-section-id=\"5m0ik3\" data-start=\"4917\" data-end=\"4956\">Benchmark using realistic workloads<\/li>\n<\/ul>\n<hr data-start=\"4958\" data-end=\"4961\" \/>\n<h2 data-section-id=\"114wazr\" data-start=\"4963\" data-end=\"4980\">Final Thoughts<\/h2>\n<p data-start=\"4982\" data-end=\"5234\">The Disruptor pattern introduces a fundamentally different approach to concurrency in Java. By leveraging lock-free design, memory pre-allocation, and CPU cache optimization, it enables systems to achieve exceptional throughput with consistent latency.<\/p>\n<p data-start=\"5236\" data-end=\"5379\">For engineers working on performance-critical applications, mastering this pattern can significantly elevate system efficiency and scalability.<\/p>\n<hr data-start=\"5381\" data-end=\"5384\" \/>\n<h1 data-section-id=\"afoywu\" data-start=\"5386\" data-end=\"5398\">References<\/h1>\n<ul data-start=\"5400\" data-end=\"5602\">\n<li data-section-id=\"rs4x9w\" data-start=\"5400\" data-end=\"5444\"><a data-start=\"5402\" data-end=\"5444\" rel=\"noopener\" target=\"_new\" class=\"decorated-link\" href=\"https:\/\/lmax-exchange.github.io\/disruptor\/\">https:\/\/lmax-exchange.github.io\/disruptor\/<span aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"><use href=\"\/cdn\/assets\/sprites-core-dd80ba6x.svg#304883\" fill=\"currentColor\"><\/use><\/svg><\/span><\/a><\/li>\n<li data-section-id=\"eufwde\" data-start=\"5445\" data-end=\"5490\"><a data-start=\"5447\" data-end=\"5490\" rel=\"noopener\" target=\"_new\" class=\"decorated-link\" href=\"https:\/\/martinfowler.com\/articles\/lmax.html\">https:\/\/martinfowler.com\/articles\/lmax.html<span aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"><use href=\"\/cdn\/assets\/sprites-core-dd80ba6x.svg#304883\" fill=\"currentColor\"><\/use><\/svg><\/span><\/a><\/li>\n<li data-section-id=\"1rn3u59\" data-start=\"5491\" data-end=\"5535\"><a data-start=\"5493\" data-end=\"5535\" rel=\"noopener\" target=\"_new\" class=\"decorated-link\" href=\"https:\/\/github.com\/LMAX-Exchange\/disruptor\">https:\/\/github.com\/LMAX-Exchange\/disruptor<span aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"><use href=\"\/cdn\/assets\/sprites-core-dd80ba6x.svg#304883\" fill=\"currentColor\"><\/use><\/svg><\/span><\/a><\/li>\n<li data-section-id=\"xwiegs\" data-start=\"5536\" data-end=\"5579\"><a data-start=\"5538\" data-end=\"5579\" rel=\"noopener\" target=\"_new\" class=\"decorated-link\" href=\"https:\/\/mechanical-sympathy.blogspot.com\/\">https:\/\/mechanical-sympathy.blogspot.com\/<span aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"><use href=\"\/cdn\/assets\/sprites-core-dd80ba6x.svg#304883\" fill=\"currentColor\"><\/use><\/svg><\/span><\/a><\/li>\n<li data-section-id=\"xp6pcj\" data-start=\"5580\" data-end=\"5602\"><a data-start=\"5582\" data-end=\"5602\" rel=\"noopener\" target=\"_new\" class=\"decorated-link\" href=\"https:\/\/openjdk.org\/\">https:\/\/openjdk.org\/<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In today\u2019s world of real-time systems, traditional architectures often fail to meet the demands of ultra-low latency and high throughput. Whether you&#8217;re building trading platforms, telemetry pipelines, or high-scale APIs, the ability to process millions of events per second is no longer optional. This is where the Disruptor pattern, popularized [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":478,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":"","jetpack_publicize_message":"Building high-performance systems in Java requires more than just scaling infrastructure.\n\nI recently explored how the Disruptor pattern enables ultra-low latency and high-throughput event processing by eliminating locks and reducing GC overhead.\n\nIf you're working on event-driven architectures or performance-critical systems, this approach is worth understanding.\n\nJava, SystemDesign, Performance, Backend, Microservices, Architecture","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[113],"tags":[351,347,352,216,346,348,350,335,353,349],"class_list":["post-475","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-spring-boot-aws-microservices","tag-backend-scalability","tag-concurrent-programming","tag-disruptor-pattern","tag-event-driven-architecture-2","tag-high-throughput-systems","tag-java-disruptor","tag-java-performance-tuning","tag-low-latency-java","tag-real-time-systems","tag-ring-buffer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Designing High-Throughput Event-Driven Systems Using Java &amp; Disruptor Pattern - &lt;&gt;HARSHAD&#039;s Dev Diary&lt;\/&gt;<\/title>\n<meta name=\"description\" content=\"Learn how to design high-throughput event-driven systems in Java using the Disruptor pattern. Improve performance, reduce latency, and handle millions of events efficiently.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/harshad-sonawane.com\/blog\/java-disruptor-high-throughput-event-driven-systems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Designing High-Throughput Event-Driven Systems Using Java &amp; Disruptor Pattern - &lt;&gt;HARSHAD&#039;s Dev Diary&lt;\/&gt;\" \/>\n<meta property=\"og:description\" content=\"Learn how to design high-throughput event-driven systems in Java using the Disruptor pattern. 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