#Redis

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#Redis Reel by @codekarlo - Well ofc(AI) , redis , cicd, db everything is there. #programming #coding #ai #programmingmemesandjokes
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@codekarlo
Well ofc(AI) , redis , cicd, db everything is there. #programming #coding #ai #programmingmemesandjokes
#Redis Reel by @sjain.codes - 1️⃣ In-Memory Data Store (Biggest Reason) Redis stores data entirely in RAM, not on disk. 👉 No disk seek time 👉 No I/O wait 👉 No blocking reads
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@sjain.codes
1️⃣ In-Memory Data Store (Biggest Reason) Redis stores data entirely in RAM, not on disk. 👉 No disk seek time 👉 No I/O wait 👉 No blocking reads Accessing RAM takes nanoseconds, while disk access takes milliseconds. So operations like: • GET • SET • INCR • HSET are extremely fast. ⸻ 2️⃣ Single Thread = No Locking Overhead Traditional databases: • Multiple threads • Shared memory • Locks & synchronization • Context switching Problems: • Mutex locks • Race conditions • CPU context switching cost Redis avoids all of this. ✅ Only one thread executes commands ✅ No locks ✅ No thread contention So every request executes deterministically and quickly. Key Insight: Redis trades parallelism for simplicity and predictability. ⸻ 3️⃣ Event Loop + Non-Blocking I/O Redis uses an event-driven architecture similar to Node.js. It relies on OS mechanisms like: • epoll (Linux) • kqueue (Mac) • select/poll Flow: 1. Thousands of clients send requests. 2. Requests are queued in socket buffers. 3. Event loop detects ready connections. 4. Redis processes commands sequentially. Since network I/O is non-blocking, Redis never waits for clients. 👉 One thread can handle tens of thousands of connections simultaneously. ⸻ 4️⃣ Extremely Fast Data Structures Redis operations are optimized: • Hash tables → O(1) • Lists → optimized linked structures • Sorted Sets → skip lists • Bitmaps & HyperLogLog Most commands execute in constant time. ⸻ 5️⃣ Pipelining (Hidden Performance Booster) Clients can send multiple commands without waiting for responses. This reduces network round trips massively. ⸻ 6️⃣ Modern Redis Uses Threads (Important Detail) Redis is not fully single-threaded anymore. Execution is single-threaded, BUT: ✅ Networking I/O uses multiple threads ✅ Background threads handle: • Persistence (RDB/AOF) • Replication • Lazy deletion So the main thread focuses only on fast command execution. #systemdesigninterview #coding #code #google #ai
#Redis Reel by @chhavi_maheshwari_ - Short Interview Answer💯 Redis is single-threaded for command execution, but not single-threaded overall. It handles millions of requests per second b
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@chhavi_maheshwari_
Short Interview Answer💯 Redis is single-threaded for command execution, but not single-threaded overall. It handles millions of requests per second because of: 👉 Event-driven architecture 👉 Non-blocking I/O 👉 In-memory operations 👉 Very small & optimized commands Explanation: ➡️ 1️⃣ No Thread Switching Overhead Redis runs on a single event loop, no context switching between threads. Example: One cashier serving customers quickly instead of 5 cashiers fighting over the same drawer. ⸻ ➡️ 2️⃣ Everything Is In-Memory Redis stores data in RAM, not disk. ⸻ ➡️ 3️⃣ Non-Blocking I/O (Event Loop Model) Uses an event-driven model (epoll/kqueue). Example: While waiting for one client’s network response, it serves others instead of waiting idle. ⸻ ➡️ 4️⃣ Simple Data Structures Optimized internal structures (hash tables, skip lists). Example: Fetching a user session is just a quick hash lookup - no heavy joins. ⸻ ➡️ 5️⃣ Pipelining Clients can send multiple commands at once without waiting for each response. Example: Instead of 10 back-and-forth trips, send 10 commands in one go. ⸻ ➡️ 6️⃣ Horizontal Scaling Redis scales using replication and clustering. Example: 1 instance handles 100K ops → 10 shards handle 1M+ ops. ⸻ ➡️ 7️⃣ Multi-Threaded I/O (Modern Redis) Newer versions use threads for network I/O while keeping command execution single-threaded. (redis architecture explained, redis single threaded performance, how redis handles high throughput, redis event loop model, in memory database performance, redis pipelining and clustering, backend performance optimization) #Redis #BackendEngineering #SystemDesign #ScalableSystems #tech
#Redis Reel by @npmisans (verified account) - An analogy i like using: One genius chef who never puts the knife down beats 10 chefs arguing over who gets to use the cutting board. That's Redis in
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@npmisans
An analogy i like using: One genius chef who never puts the knife down beats 10 chefs arguing over who gets to use the cutting board. That's Redis in one sentence. Here's why it actually works: Multi-threaded databases have a hidden tax. Every thread that touches shared memory needs a lock. Locks mean waiting. Waiting means context switches. Context switches mean the OS is swapping threads in and out, flushing CPU caches, burning microseconds on coordination instead of actual work. You hired 10 chefs and most of them are just standing around. Redis bets on a different model. One thread. No locks. No contention. Every single CPU cycle goes toward executing your command — not managing who gets to execute it. A GET is a memory lookup. It takes nanoseconds. By the time a second thread would've finished acquiring its mutex, Redis already served 10,000 requests.
#Redis Reel by @sujan.codes - Your API takes 2 seconds to respond.�How do engineers reduce it to just 200 milliseconds? Step one is profiling. You must first identify where the de
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@sujan.codes
Your API takes 2 seconds to respond.�How do engineers reduce it to just 200 milliseconds? Step one is profiling. You must first identify where the delay is happening. Check:�database queries�external API calls�heavy processing Find the slowest step. Step two is caching using Redis. If data doesn’t change frequently,�store it in cache. Instead of querying the database every time,�return data from Redis instantly. Step three is using async processing and queues. Heavy tasks like emails, reports, or notifications �should not run during the API request. Send them to a background queue�so the API responds immediately. Step four is reduce payload size. Return only required fields,�not entire database records. Step five is reduce network latency. Use compression, CDNs, and faster servers. In simple words:�Identify bottlenecks, cache data, use async processing,�and reduce unnecessary work.
#Redis Reel by @erin.codes - One barista who never stops making drinks will beat five baristas all waiting to use the same espresso machine ☕️ That's Redis Multi-threaded syste
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@erin.codes
One barista who never stops making drinks will beat five baristas all waiting to use the same espresso machine ☕️ That’s Redis Multi-threaded systems come with a hidden cost As soon as multiple threads need access to the same data ☕️, you need to start locking things down Locks mean waiting & context switching. So the OS is bouncing between threads, CPU caches get disrupted, and time gets spent on coordination instead of actual work So here you have multiple workers… but they’re not all doing useful work at the same time Redis takes a different approach: one main thread handles commands and no locks are needed for core operations Because Redis keeps data in memory and uses an event loop, something like a GET is basically just a memory lookup and super fast To be clear, Redis does use background threads for things like I/O, but your commmands themselves aren’t competing with each other So while a multi-threaded system might be busy coordinating access, Redis is just processing requests back-to-back quick vocab ⭐️ - thread: a unit of execution (think: a worker running code) - lock: ensures only one thread can access certain data at a time - contention: when multiple threads compete for the same resource - context switching: when the CPU switches between threads, adding overhead - event loop: handles many tasks in one thread by processing them quickly, one at a time - in-memory: data stored in RAM instead of disk (much faster) - I/O: reading from or writing to disk or network - CPU cache: very fast temporary storage the CPU uses, losing it can slow things down
#Redis Reel by @mission_compile - It sounds impossible… but it's actually smart engineering. Comment "blog" for detailed blog. ⸻ ➡️ 1️⃣ No Thread Switching Overhead Redis runs on a s
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@mission_compile
It sounds impossible… but it’s actually smart engineering. Comment "blog" for detailed blog. ⸻ ➡️ 1️⃣ No Thread Switching Overhead Redis runs on a single event loop, no context switching between threads. Example: One cashier serving customers quickly instead of 5 cashiers fighting over the same drawer. ⸻ ➡️ 2️⃣ Everything Is In-Memory Redis stores data in RAM, not disk. Example: Reading from RAM takes microseconds vs milliseconds from disk. ⸻ ➡️ 3️⃣ Non-Blocking I/O (Event Loop Model) Uses an event-driven model (epoll/kqueue). Example: While waiting for one client’s network response, it serves others instead of waiting idle. ⸻ ➡️ 4️⃣ Simple Data Structures Optimized internal structures (hash tables, skip lists). Example: Fetching a user session is just a quick hash lookup - no heavy joins. ⸻ ➡️ 5️⃣ Pipelining Clients can send multiple commands at once without waiting for each response. Example: Instead of 10 back-and-forth trips, send 10 commands in one go. ⸻ ➡️ 6️⃣ Horizontal Scaling Redis scales using replication and clustering. Example: 1 instance handles 100K ops → 10 shards handle 1M+ ops. ⸻ ➡️ 7️⃣ Multi-Threaded I/O (Modern Redis) Newer versions use threads for network I/O while keeping command execution single-threaded. (redis architecture explained, redis single threaded performance, how redis handles high throughput, redis event loop model, in memory database performance, redis pipelining and clustering, backend performance optimization) #Redis #BackendEngineering #SystemDesign #ScalableSystems #DistributedSystems
#Redis Reel by @yashudeveloper (verified account) - End of Redis?😭 -----------tags------------ #htmlcss #webdevelopment #frontend #html #css javascript coding htmltricks cssanimations csstricks javas
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@yashudeveloper
End of Redis?😭 -----------tags------------ #htmlcss #webdevelopment #frontend #html #css javascript coding htmltricks cssanimations csstricks javascripttricks
#Redis Reel by @codedsoul_05 - Famous Interview Question: 2 billion users 💀 You type a username on Instagram or Gmail. It instantly says "available" or "taken". How? This is not m
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@codedsoul_05
Famous Interview Question: 2 billion users 💀 You type a username on Instagram or Gmail. It instantly says “available” or “taken”. How? This is not magic. This is scalable lookup design. ⸻ 1️⃣ Naive Approach — Wrong SELECT * FROM users WHERE username = ? Full table scan 💀 At scale → impossible Production lesson: Never scan at scale ⸻ 2️⃣ Add Index — Basic Fix CREATE UNIQUE INDEX ON users(username); Lookup → O(log n) Production lesson: Index makes search fast, not free ⸻ 3️⃣ Cache Layer — Real Production App → Cache → DB Hot usernames → served from cache No DB hit Production lesson: Hot data should not hit DB ⸻ 4️⃣ Bloom Filter — The Real Magic Check before DB Not present → instantly available Maybe present → verify in DB Uses hash + bit array 2B usernames ≈ ~125MB memory Production lesson: Eliminates most DB queries ⸻ 5️⃣ Trade-Off — False Positives May say “taken” when available Fix → always confirm with DB Production lesson: Trade accuracy for massive speed ⸻ 6️⃣ Final Flow User → Cache → Bloom Filter → DB Result in milliseconds Production lesson: Layered lookup wins at scale ⸻ 🔥 Interview One-Liner: At scale, username availability is solved using indexing, caching, and Bloom Filters to avoid scanning billions of records. #backend #systemdesign #scalability #database #redis caching java microservices coding programming developer softwareengineering interviewquestions tech coding-life Indiacoding techindia Follow @codedsoul_05 ❤️
#Redis Reel by @swiggistv - Comment "DEV" and I'll send you every prompt that I use! - Claude = coding. ($20/mo) - Supabase = backend. (Free) - Vercel = deploying. (Free)
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@swiggistv
Comment “DEV” and I’ll send you every prompt that I use! - Claude = coding. ($20/mo) - Supabase = backend. (Free) - Vercel = deploying. (Free) - Namecheap = domain. ($12/yr) - Stripe = payments. (2.9%/transaction) - GitHub = version control. (Free) - Resend = emails. (Free) - Clerk = auth. (Free) - Cloudflare = DNS. (Free) - PostHog = analytics. (Free) - Sentry = error tracking. (Free) - Upstash = Redis. (Free) - Pinecone = vector DB. (Free) Total monthly cost to run a startup: ~$20 There has never been a cheaper time to build.

✨ #Redis Discovery Guide

Instagram hosts 85K posts under #Redis, creating one of the platform's most vibrant visual ecosystems. This massive collection represents trending moments, creative expressions, and global conversations happening right now.

The massive #Redis collection on Instagram features today's most engaging videos. Content from @sjain.codes, @codekarlo and @swiggistv and other creative producers has reached 85K posts globally. Filter and watch the freshest #Redis reels instantly.

What's trending in #Redis? The most watched Reels videos and viral content are featured above. Explore the gallery to discover creative storytelling, popular moments, and content that's capturing millions of views worldwide.

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Content Performance Insights

Analysis of 12 reels

✅ Moderate Competition

💡 Top performing posts average 723.8K views (2.3x above average). Moderate competition - consistent posting builds momentum.

Post consistently 3-5 times/week at times when your audience is most active

Content Creation Tips & Strategy

💡 Top performing content gets over 10K views - focus on engaging first 3 seconds

📹 High-quality vertical videos (9:16) perform best for #Redis - use good lighting and clear audio

✨ Many verified creators are active (25%) - study their content style for inspiration

✍️ Detailed captions with story work well - average caption length is 914 characters

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