November 3, 2025
Master AWS cost efficiency and performance optimization using AWS Compute Optimizer (ACO). This comprehensive guide explains how ACO utilizes machine learning to generate actionable, data-driven recommendations for right-sizing EC2 instances, EBS volumes, and Lambda functions. Learn the specific steps and CLI examples for implementing these changes, ensuring continuous optimization to reduce cloud spending and maintain application reliability.
Choose an EC2 instance size by matching workload CPU, memory, storage, network, and cost signals to AWS instance families.
Size Elasticsearch shards with practical targets, capacity checks, ILM rollover, and safe reindexing plans.
Improve MongoDB query performance with better indexes, projections, scan avoidance, sort planning, and targeted updates.
Optimize MongoDB aggregation pipelines with better stage order, index-aware sorting, lookup tuning, and explain plans.
Speed up Bash scripts by using shell built-ins for tests, arithmetic, and string work while batching external commands.
Diagnose slow Bash scripts with timing, tracing, fewer subprocesses, better loops, and safer I/O patterns.
Speed up Bash loops by reducing external commands, reading files safely, using arrays correctly, and batching file operations.
Unlock hidden performance gains in your Bash scripts by mastering external command usage. This guide explains the significant overhead caused by repeatedly spawning processes like `grep` or `sed`. Learn practical, actionable techniques to replace external calls with efficient Bash built-ins, batch operations using powerful utilities, and optimize file reading loops to dramatically reduce execution time in high-throughput automation tasks.
Speed up Bash scripts by reducing process forks, using built-ins, batching file operations, and choosing the right text tool.
Tune SSH client keepalives, compression, multiplexing, and ciphers for slow or unreliable network links.
Diagnose and eliminate frustrating latency in your Secure Shell (SSH) connections. This guide details five immediate configuration fixes—including disabling DNS lookups and GSSAPI authentication—to restore snappy terminal response times. Learn practical steps for optimizing ciphers and leveraging connection multiplexing for enhanced remote productivity.