Khushal Agrawal - Distributed Systems & Infrastructure EngineerEngineering notebook on distributed systems, observability, AI runtime infrastructure, Linux, databases, and open-source software.https://khushalagrawal.dev/eBPF Tracing Notes for Runtime Latencyhttps://khushalagrawal.dev/blog/ebpf-tracing-runtime-latency/https://khushalagrawal.dev/blog/ebpf-tracing-runtime-latency/A practical outline for using eBPF to observe syscall latency, scheduler pressure, and runtime behavior with minimal application changes.Sat, 02 May 2026 00:00:00 GMTKafka Architecture Notes: Logs, Segments, and Consumer Laghttps://khushalagrawal.dev/blog/kafka-log-segment-architecture/https://khushalagrawal.dev/blog/kafka-log-segment-architecture/Engineering notes on Kafka's log-oriented architecture, segment lifecycle, replication, and why consumer lag is an operational signal rather than just a metric.Wed, 13 May 2026 00:00:00 GMTRedis Internals: The Event Loop as a Systems Primitivehttps://khushalagrawal.dev/blog/redis-internals-event-loop/https://khushalagrawal.dev/blog/redis-internals-event-loop/A concise walkthrough of how Redis uses a single-threaded event loop, multiplexed I/O, and careful data structure choices to stay predictable under load.Wed, 20 May 2026 00:00:00 GMTConcurrent Servers: Notes on Threads, Event Loops, libuv, Redis, and async/awaithttps://khushalagrawal.dev/blog/concurrent-servers-series-notes/https://khushalagrawal.dev/blog/concurrent-servers-series-notes/A series-level writeup from Eli Bendersky's concurrent servers articles, tracing the design space from sequential sockets to threads, event-driven I/O, libuv, Redis, and async/await.Mon, 01 Jun 2026 00:00:00 GMT