Tag: #performance
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 72 posts
PostgreSQL Production Operations Complete Guide 2025: Extensions, Tuning, Monitoring, HA
Everything about running PostgreSQL in production! Essential extensions (pgstatstatements/pgvector/PostGIS/TimescaleDB), performance tuning (sharedbuffers/workmem/effectivecachesize), VACUUM/Autovacuum management, monito
2026-04-15 · 7 min read #postgresql#database#production#extensions#performanceRust Tokio Runtime Deep Dive — Future, Waker, Work-Stealing, Pin, Zero-Cost Async (2025)
Rust async/await promises "infinite concurrency with no runtime", but the internals are intricate. This post dissects the Tokio runtime from the ground up: how async fn compiles into a state machine, the Future/Poll/Wake
2026-04-15 · 15 min read #rust#tokio#async#runtime#concurrencyLock-Free Concurrency Programming Complete Guide 2025: Atomics, Memory Model, CAS, Lock-Free Data Structures
Everything about Lock-Free programming: atomics fundamentals, CPU memory models (x86 vs ARM), CAS (Compare-And-Swap), Lock-Free data structures (Queue/Stack/Hash), ABA problem, Hazard Pointers, RCU, Java/Rust/C++ compari
2026-04-15 · 11 min read #lock-free#concurrency#atomics#memory-model#casgRPC Deep Dive 2025: Protocol Buffers, Four Communication Models, Interceptors, Load Balancing
Deep dive into gRPC: Protocol Buffers internals, four communication models (Unary/Server/Client/Bidirectional), interceptors, load balancing, Deadline/Cancellation, streaming backpressure, gRPC-Web, debugging tools.
2026-04-15 · 9 min read #grpc#protobuf#streaming#http2#interceptorLinux I/O Evolution Deep Dive — blocking, select, poll, epoll, io_uring (2025)
How do you handle not 10,000 but 1,000,000 concurrent connections on a single server? 30 years of Linux I/O API evolution — from the 1970s blocking read, through the limits of select/poll, the epoll revolution, to iourin
2026-04-15 · 11 min read #linux#io#epoll#io-uring#asyncThe Science of Modern Web Performance — A Deep Dive into Core Web Vitals, INP, LCP, CLS, RUM, Lighthouse, Critical Rendering Path, and Speculation Rules (2025) ♪ Listenable
Why is my site slow? In 2024, INP officially replaced FID, reshaping the three Core Web Vitals, while the Speculation Rules API, Partial Hydration, HTTP/3, and Early Hints all matured simultaneously. This post traces why
2026-04-15 · 21 min read #web-performance#core-web-vitals#inp#lcp#clsCPU Cache & Memory Hierarchy Complete Guide 2025: L1/L2/L3, Cache Line, False Sharing, Performance Tuning
Everything about the memory hierarchy: L1/L2/L3 cache, cache line, MESI protocol, false sharing, cache-friendly data structures, NUMA, mechanical sympathy, and hands-on performance tuning.
2026-04-15 · 11 min read #cpu-cache#memory#performance#cache-line#false-sharingModern Computer Architecture — CPU Pipelines, Out-of-Order, Caches, Branch Prediction, Meltdown, Apple Silicon, ARM, RISC-V, SIMD, GPU Deep Dive (2025)
Why arrays beat linked lists, why a branch can be 10x slower, how M1 beat Intel. CPU pipelines, Out-of-Order, L1 to L3 caches, branch prediction, Meltdown/Spectre, Apple Silicon, ARM/x86/RISC-V, SIMD, GPU SM/Warp, HBM/CX
2026-04-15 · 15 min read #computer-architecture#cpu#cache#branch-prediction#apple-siliconPerformance & Core Web Vitals 2025 — LCP, CLS, INP, RUM, Image/Font/JS Optimization, Edge, CDN, HTTP/3 (S6 E6)
Performance is not a feature — it is the precondition for every feature. The full 2025 Core Web Vitals map: LCP, CLS, INP (FID successor), RUM vs synthetic, critical rendering path, JS bundle diet, image/font optimizatio
2026-04-15 · 7 min read #performance#core-web-vitals#lcp#cls#inpComplete Guide to Async I/O Models 2025: epoll, io_uring, Reactor/Proactor, and async/await Internals
Everything about async I/O. Blocking vs non-blocking vs async, the select/poll/epoll/kqueue evolution, the iouring revolution, Reactor/Proactor patterns, Tokio/libuv internals, and what async/await actually does.
2026-04-15 · 12 min read #async-io#epoll#io-uring#reactor#proactorAWS Well-Architected Framework Complete Guide 2025: Six Pillars, Practical Adoption, Cost/Security/Performance
Everything about the AWS Well-Architected Framework: six pillars (Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization, Sustainability), practical checklists, Well-Architected Tool usa
2026-04-15 · 14 min read #aws#well-architected#cloud-architecture#security#reliabilityLinux Performance Engineering Complete Guide 2025: Profiling, System Tuning, eBPF, Bottleneck Analysis ♪ Listenable
Everything about Linux performance! USE methodology (Utilization/Saturation/Errors), perf/bpftrace/eBPF, Flame Graphs, CPU/memory/disk/network bottleneck analysis, sysctl tuning, cgroups v2, I/O schedulers, NUMA, kernel
2026-04-14 · 21 min read #linux#performance#profiling#ebpf#perfeBPF Complete Guide 2025: Kernel Programming Revolution for Observability, Networking, Security
Everything about eBPF! Safe Linux kernel programming, BCC vs libbpf vs bpftrace, Cilium (networking), Falco (security), Pixie (observability), Tetragon, CO-RE, real-world tracing, performance optimization, production cas
2026-04-14 · 11 min read #ebpf#kernel#observability#networking#securityKubernetes Database Deep Dive 2025: Operator Patterns, HA Configuration, Backup/Recovery, Performance Tuning ♪ Listenable
K8s DB operations deep dive! CloudNativePG vs Percona Operator comparison, Primary-Replica automatic Failover, pgBackRest/Velero backup, WAL archiving, Connection Pooling (PgBouncer), resource tuning (CPU/Memory/IOPS), A
2026-04-13 · 20 min read #kubernetes#database#operator#cloudnativepg#perconaDatabase Performance Tuning Complete Guide: Query Optimization, Index Strategy, Connection Pool Management
Everything about DB performance tuning! EXPLAIN ANALYZE interpretation, index design (B-Tree/GIN/BRIN), slow query analysis, connection pooling (HikariCP/PgBouncer), N+1 resolution, partitioning, read replicas, query cac
2026-03-24 · 22 min read #database#performance#tuning#indexing#query-optimizationRust in 2025: 45.5% Adoption, TIOBE #13, Linux Kernel — Should Your Team Learn Rust?
Rust organizational adoption hits 45.5% (+17.6% YoY), commercial use grew 68.75%, TIOBE all-time high at 13. Rust is becoming essential in Linux kernel, Android, and cloud infrastructure. Covering learning curve, real-wo
2026-03-22 · 20 min read #rust#programming#systems#linux-kernel#webassemblyCPU, Memory, NUMA, HugePages: How KubeVirt Aligns the Resource Model
Explains how KubeVirt translates VMI CPU and memory requests into launcher Pod resource requests, memory overhead, CPU pinning, NUMA, and hugepages models.
2026-03-20 · 5 min read #architecture#kubevirt#kubernetes#numa#hugepagesSpring Boot Embedded Tomcat Complete Guide: Configuration, Optimization, and Production Tuning
Complete guide to Spring Boot Embedded Tomcat — thread pool, connection timeout, SSL, HTTP/2, compression, access logs, and switching to Undertow/Jetty for production optimization.
2026-03-17 · 8 min read #spring-boot#tomcat#embedded-server#performance#sslPython Advanced Techniques for AI/ML: Performance Optimization, Parallel Processing, Memory Management ♪ Listenable
A comprehensive guide to advanced Python techniques for AI/ML development. Master performance profiling, multiprocessing, async/await, Numba JIT, Cython, memory profiling, and type hints with practical examples.
2026-03-17 · 24 min read #python#advanced#performance#multiprocessing#numbaPostgreSQL Query Optimization and Performance Tuning Practical Guide: From EXPLAIN to Partitioning ♪ Listenable
A systematic guide to practical performance optimization techniques for PostgreSQL including EXPLAIN analysis, index strategies, VACUUM tuning, partitioning, and connection pooling.
2026-03-14 · 19 min read #database#postgresql#query-optimization#performance#indexing