Slow MySQL Database?
Is your MySQL database getting slower as your application grows?
I can investigate slow queries, missing indexes, inefficient joins, locking, excessive database load and other common MySQL bottlenecks in an existing production system.
What I Can Help With
Diagnose the actual cause of a slow MySQL database.
Typical Problems
Relevant Experience
Diagnosed a MySQL database where inserts were locking for 5+ seconds. Root cause: a combination of missing indexes on the ORDER BY columns and InnoDB gap locking under high concurrent writes. Fixed with targeted indexes and a batched insert strategy.
What Is Included
How It Works
You share slow-log/explain output and schema (or grant read-only access to a replica). I trace the bottleneck — which query, which index, which schema issue — confirm it with EXPLAIN, and return a written diagnosis with the fix order. One focused session.
Fixed price €299
MySQL performance diagnosis and a written report with prioritized recommendations. Implementation is optional and quoted separately.
Frequently Asked Questions
Can you diagnose without a production login?
Yes. The slow query log, EXPLAIN output and SHOW CREATE TABLE are enough to identify the bottleneck.
What if the problem is in the application, not MySQL?
I include application/database interaction review in the diagnosis, so I can tell you whether the fix belongs in the query, the index, the schema or the calling code.
Related Services
MySQL Performance Optimization
Optimize MySQL queries, indexes and schema for a production workload.
Backend Performance Audit
Find and prioritize the real bottlenecks across your full backend stack.
PHP Performance Optimization
Profile and optimize PHP applications that are slow, memory-heavy or consuming too much CPU.
Systems I've Built
AnalyticsForWebsite
Custom solution for collecting and evaluating traffic metrics with emphasis on processing speed and minimizing backend load.
Designed and built the backend for fast traffic metric collection and evaluation.
Cenoskop / Levnobot
Crawler monitoring millions of products. Processing 30M products daily and comparing them.
Built and maintain the full crawling pipeline — from scraping through Elasticsearch indexing to price comparison.
Niftycent
Price intelligence engine for the US market. Processing large-scale product data.
Built the data pipeline and crawling infrastructure for large-scale US product monitoring.
Not sure what's wrong?
Write what's happening and paste anything relevant — errors, logs, metrics. I'll have a look and tell you what I think.