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)
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
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
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
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
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