RTRohan Tiwariinrabindranath-tiwari.com.np·1d ago · 5 min readLatency Numbers Every Engineer Should KnowLatency is simply the time between asking for something and getting it back. Every system you will ever touch is built out of layers, and each layer has its own latency because each layer is physicall33TLD
RTRohan Tiwariinrabindranath-tiwari.com.np·Mar 22 · 2 min readUnderstanding HTTP MIME TypesThe internet hosts many kinds of resources, so each resource needs a label to tell clients how to handle it. MIME (Multipurpose Internet Mail Extensions) was originally developed to solve problems mov00
RTRohan Tiwariinrabindranath-tiwari.com.np·Mar 20 · 6 min readCentralized Cache Key Management In RedisIn modern web applications, efficient data access is essential for performance and user experience. Redis, a blazing-fast in-memory store used for caching, messaging, and short-lived persistence, depe00
RTRohan Tiwariinrabindranath-tiwari.com.np·Feb 19 · 6 min readPostgres Multi Version Concurrency Control - MVCCIn 1986 database researcher named Michael Stonebraker was working on a problem that has plauged databases since their inception. how do you let many people read and write to the data simultaneously wi00
RTRohan Tiwariinrabindranath-tiwari.com.np·Feb 19 · 4 min readPostgreSQL TOAST Storage ModelsThe main problem TOAST solves is fundamental : postgres pages are of 8kb, and tuple must fit within that page. so what happens if you try to insert 1MB of text field ? Without toast you would get an error: "Row too big". With toast PostgreSQL handles...00
