# How to Prevent the DB from Becoming a Bottleneck

DevFeed: [How to Prevent the DB from Becoming a Bottleneck](<https://devfeed.tech/articles/how-to-prevent-the-db-from-becoming-a-bottleneck-34683.md>)

Original publisher: [Read original article](<https://newsletter.systemdesigncodex.com/p/how-to-prevent-the-db-from-becoming>)

Author: Saurabh Dashora

Published: 2026-02-24T08:15:03Z

Content type: tutorial

Language: en

Sources: [System Design Codex](<https://devfeed.tech/sources/system-design-codex.md>)

Topics: [Databases](<https://devfeed.tech/topics/databases.md>), [Back end](<https://devfeed.tech/topics/backend.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [Concurrency](<https://devfeed.tech/topics/concurrency.md>), [Deadlock](<https://devfeed.tech/topics/deadlock.md>), [Transactions](<https://devfeed.tech/topics/transactions.md>), [MongoDB](<https://devfeed.tech/topics/mongodb.md>), [MySQL](<https://devfeed.tech/topics/mysql.md>), [PostgreSQL](<https://devfeed.tech/topics/postgresql.md>)

Tags: [concurrency](<https://devfeed.tech/tags/concurrency.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [latency](<https://devfeed.tech/tags/latency.md>), [locking](<https://devfeed.tech/tags/locking.md>), [performance](<https://devfeed.tech/tags/performance.md>)

## AI overview

This tutorial explains how databases can become application performance bottlenecks even when application code is optimized. It covers diagnosing slow queries with profiling and logs, monitoring execution time and latency, and understanding how locking and deadlocks can affect concurrent transactions.

## Source excerpt

Tips and Strategies