🔥 The DB Grill 🔥

Ah, what a delightful read. It’s always so refreshing to see someone focus purely on the raw, unbridled thrill of performance metrics, untroubled by trivialities like, you know, security. It's a bold strategy, and I must commend you for it. This isn't just a benchmark; it's a meticulously crafted roadmap for a future data breach.

I was immediately impressed by your decision to compile MySQL and Postgres from source. Truly artisanal. Nothing says "I have a robust, repeatable, and auditable deployment pipeline" like a custom-built binary running on a production-like server. What could possibly go wrong? I'm sure you verified the integrity of the source tarballs, checked every dependency for known vulnerabilities, and have a plan to manually patch this bespoke snowflake every time a new zero-day drops. It's a full-employment plan for your future incident response team. Bravo.

And the range of versions! MySQL 5.6.51! It’s wonderful to see such nostalgia for the classics. That version is practically a historical artifact. You’re not just benchmarking performance; you’re benchmarking a living museum of CVEs that have long since been patched in the versions people actually use. It’s a bold choice to include a version of MySQL that's so old, its security vulnerabilities are now eligible for social security.

Your testing environment is a masterpiece of minimalist design. A single Ubuntu 24.04 server with discard enabled on the filesystem. It’s a wonderfully efficient way to not only test IO performance but also potentially leak information about filesystem structure to any process clever enough to look. And no mention of user permissions, network segmentation, or even a basic firewall. Why would you need them? You’re just running a few "clients" connecting directly to the database. I'm sure those clients are perfectly benign and couldn't possibly represent an attacker testing how quickly they can exfiltrate 300 million rows of data. It’s a pure, frictionless environment. A threat actor’s paradise.

I particularly enjoyed the part where you provide direct links to your standard MySQL config files. Transparency is such a virtue! It saves a potential attacker so much time not having to guess your configuration. And disabling features for performance? A stroke of genius!

For 9.5.0 I also tried a my.cnf file that disabled a few gtid features that are newly enabled in 9.5 to have a config more similar to earlier releases

Chef’s kiss. Why bother with robust, globally unique transaction identifiers that ensure data integrity and make replication recovery a solvable problem? They clearly get in the way of those precious queries per second. Let’s just turn that off. Our SOC 2 auditors are going to love this. "Yes, we intentionally degraded our data consistency and disaster recovery capabilities for a 3% performance gain in a synthetic benchmark. Please give us our certification."

The entire benchmark design is a security auditor's nightmare, which I mean as the highest form of compliment to your dedication to pure speed. You have:

• Multiple clients establishing direct connections, simulating a beautiful denial-of-service attack.
• Massive insert operations (l.i0), a perfect test case for overwhelming audit logs and intrusion detection systems.
• Concurrent inserts and deletes, which is a fantastic way to create race conditions that a clever attacker could exploit.
• No mention of encryption in transit or at rest, because SSL/TLS overhead would just ruin these lovely, clean charts.

Every step of this benchmark reads less like a performance test and more like a capture-the-flag event where the flag is "all of your customer data." The focus on relative QPS is the cherry on top. It’s fantastic that modern MySQL is faster. It means that when an SQL injection attack finally occurs, the attacker can exfiltrate the entire user table that much more efficiently. We’re not just improving performance; we’re improving the velocity of a catastrophic breach. It’s all about efficiency, after all.

Thank you for this... enlightening article. It’s a wonderful reminder that in the exhilarating race for performance, one can cast aside the heavy burdens of security, compliance, and basic operational sanity. I'll be adding this to my "What Not To Do" training deck immediately.

I can cheerfully promise you I will not be reading your blog again. For security reasons, of course. My browser's threat intelligence filter has already flagged it as a vector for dangerously naive architectural decisions.