Consulting / Support

Client: Tua Rádio

Service

Legacy Fullstack Platform Analysis

Date

December 2017

Visit Project

Technologies Used

PHP (CodeIgniter Framework from 2012)
MySQL Performance Profiling
Query Analysis Tools
Server Monitoring & Diagnostics
Code Audit & Architecture Review

Challenge

Tua Rádio's multimedia news portal (built 2015/16 on 2012 codebase) was in critical condition in 2017/18: homepage loading in 4-8 seconds, servers at 60-80% CPU capacity, and real risk of complete failure during peak traffic.

The client needed to understand whether they should invest months and significant budget in a complete rewrite or if the legacy system could be salvaged.

Before any implementation, they required a thorough diagnostic to identify root causes, evaluate options, and receive a strategic recommendation with clear cost-benefit analysis.

Consulting Approach

Before proposing any solution, I conducted comprehensive technical analysis to understand the real problems:

Performance Profiling: Monitored server resources, tracked page load times across different sections, and identified peak traffic patterns causing CPU spikes
Database Analysis: Mapped all queries executed during typical user sessions, identified slow queries consuming most resources, analyzed database structure and indexing strategy
Code Audit: Reviewed CMS architecture to understand data flow, identified unnecessary data loading, redundant processing, and missing optimization opportunities
Bottleneck Identification: Applied 80/20 analysis to pinpoint the 20% of code responsible for 80% of performance problems (category loading, columnist queries, homepage aggregation)
Solution Estimation: Evaluated two paths: complete rewrite (months of development, content migration, team retraining, business interruption) vs. surgical optimization (targeted interventions on critical bottlenecks)

Delivered Recommendations

Presented comprehensive analysis with strategic recommendations:

Root Cause Report: Documentation of specific performance bottlenecks with quantified impact (which queries, which pages, which resources)
Optimization Roadmap: Prioritized interventions targeting query optimization, strategic caching layers, progressive rendering, and targeted refactoring
Cost-Benefit Analysis: Comparison of rewrite investment (10+ months, full development cost, business risk) vs. optimization approach (weeks, surgical interventions, zero downtime)
Risk Assessment: Evaluation of implementation risks, rollback strategies, and expected performance gains
Timeline & Budget: Realistic estimates for phased optimization implementation with measurable milestones

Results / Impact

Delivered actionable diagnostic identifying specific bottlenecks without vague "the system is old" conclusions
Provided clear strategic direction: optimize rather than rewrite, saving months of development and significant budget
Established realistic performance improvement targets based on data analysis
Enabled informed decision-making with transparent cost-benefit comparison
Created phased implementation roadmap minimizing business disruption
Subsequent implementation validated analysis: homepage load time reduced from 4-8s to acceptable levels, CPU usage moved out of critical 60-80% zone

Why it matters

This project demonstrates the value of thorough technical consulting before jumping into implementation. Many legacy system problems get dismissed as "old code needs rewrite" without understanding real bottlenecks.

Strategic analysis identifies whether systems need replacement or intelligent optimization, saving clients from unnecessary investment while delivering concrete performance improvements based on data, not assumptions.