Performance on Hi, I'm Muhammad Amal https://muhammadamal.my.id/tags/performance/ Recent content in Performance on Hi, I'm Muhammad Amal Hugo en-us Mon, 23 Jun 2025 09:00:00 +0700 Reading pg_stat_io and Modern Postgres Internals https://muhammadamal.my.id/blog/reading-pg-stat-io-and-modern-postgres-internals/ Mon, 23 Jun 2025 09:00:00 +0700 https://muhammadamal.my.id/blog/reading-pg-stat-io-and-modern-postgres-internals/ A deep dive on pg_stat_io in PostgreSQL 17, explaining buffer cache mechanics, IO contexts, and how to diagnose storage and memory pressure from the view. Advanced PostgreSQL 17 Tuning at Scale, A Practical Guide https://muhammadamal.my.id/blog/advanced-postgresql-17-tuning-at-scale/ Mon, 02 Jun 2025 09:00:00 +0700 https://muhammadamal.my.id/blog/advanced-postgresql-17-tuning-at-scale/ How to tune PostgreSQL 17 for real production scale, with concrete settings, diagnostic queries, and the pitfalls that bite teams under load. PostgreSQL 17 in Production, Features Worth Using https://muhammadamal.my.id/blog/postgres-17-in-production-features-worth-using/ Mon, 04 Nov 2024 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-17-in-production-features-worth-using/ Practical look at the Postgres 17 features that move the needle for production workloads, with real psql snippets and upgrade notes. Rate Limiting Algorithms, Token Bucket, Leaky Bucket, Sliding Window https://muhammadamal.my.id/blog/rate-limiting-algorithms/ Mon, 14 Nov 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/rate-limiting-algorithms/ Rate limit algos: token bucket, leaky bucket, fixed + sliding window. When each wins. Postgres Bulk Loading, COPY and Prepared Statements https://muhammadamal.my.id/blog/postgres-bulk-loading-copy/ Mon, 24 Oct 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-bulk-loading-copy/ Postgres bulk loading: COPY beats INSERT 100x. UNLOGGED, index management, fast ETL writes. Docker Compose Resource Limits, Memory and CPU https://muhammadamal.my.id/blog/docker-compose-resource-limits/ Fri, 22 Jul 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/docker-compose-resource-limits/ Compose resource limits: memory + CPU caps. deploy.resources syntax, tuning for JVM/Node/Go. Image Optimization with next/image in Next.js 12 https://muhammadamal.my.id/blog/nextjs-image-optimization/ Mon, 25 Apr 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/nextjs-image-optimization/ next/image in Next.js 12. Layouts, sizes, lazy loading, WebP/AVIF, remote patterns, perf wins. React 18 Automatic Batching, One Render Pass For All Your State Updates https://muhammadamal.my.id/blog/react-18-automatic-batching/ Fri, 08 Apr 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/react-18-automatic-batching/ React 18 batches all state updates, not just event handlers. flushSync to opt out. Free perf win for most apps. React Concurrent Rendering, useTransition and useDeferredValue Explained https://muhammadamal.my.id/blog/react-concurrent-rendering-usetransition/ Mon, 04 Apr 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/react-concurrent-rendering-usetransition/ React 18 concurrent rendering. useTransition for non-urgent updates, useDeferredValue for derived values. When each wins. Postgres Multi-Column Indexes, Column Order Is Almost Everything https://muhammadamal.my.id/blog/postgres-multi-column-index-order/ Fri, 18 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-multi-column-index-order/ Multi-column index column order in Postgres. Leftmost prefix, INCLUDE, and the three patterns that decide useful vs useless. Postgres Partial Indexes That Make Slow Queries Disappear https://muhammadamal.my.id/blog/postgres-partial-indexes/ Wed, 16 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-partial-indexes/ Postgres partial indexes — index only the rows that matter. Four patterns that catch most production wins. Postgres Index Types, B-tree, GIN, GiST, BRIN, When Each One Wins https://muhammadamal.my.id/blog/postgres-index-types-btree-gin-gist-brin/ Mon, 14 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-index-types-btree-gin-gist-brin/ Postgres index types compared. B-tree, GIN, GiST, BRIN, Hash. When each wins, with real queries and trade-offs. Postgres Autovacuum, When Defaults Fail and How to Fix Them https://muhammadamal.my.id/blog/postgres-autovacuum-tuning/ Wed, 09 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-autovacuum-tuning/ Autovacuum defaults fail on write-heavy tables. Spot the bloat, set per-table overrides, prove it works with metrics. Tuning Postgres Memory, shared_buffers, work_mem, effective_cache_size https://muhammadamal.my.id/blog/postgres-memory-shared-buffers-work-mem/ Mon, 07 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-memory-shared-buffers-work-mem/ Four Postgres memory settings that decide whether queries fit in RAM or spill. shared_buffers, work_mem, effective_cache_size, maintenance_work_mem. Reading the Postgres Query Planner, A Practical EXPLAIN Walkthrough https://muhammadamal.my.id/blog/postgres-query-planner-explain/ Fri, 04 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-query-planner-explain/ Read Postgres EXPLAIN ANALYZE without faking it. Plan nodes, cost vs actual, trouble patterns, and the fix per pattern. Postgres Performance Tuning, My 2022 Checklist https://muhammadamal.my.id/blog/postgres-performance-tuning-checklist/ Wed, 02 Feb 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/postgres-performance-tuning-checklist/ Practical Postgres 14 performance checklist. Memory, autovacuum, indexes, pooling, and the metrics that prove it worked. Multi-Stage Docker Builds Cut Our Image Size by 70% https://muhammadamal.my.id/blog/multi-stage-docker-build-image-size/ Fri, 07 Jan 2022 09:00:00 +0700 https://muhammadamal.my.id/blog/multi-stage-docker-build-image-size/ Multi-stage Docker builds, real numbers. 70% smaller images with Buildx, distroless, and Alpine. CI cache layers that actually save time.