# Mmap effects in databases

DevFeed: [Mmap effects in databases](<https://devfeed.tech/articles/mmap-effects-in-databases-39637.md>)

Original publisher: [Read original article](<https://www.gauravsarma.com/posts/2025-04-22_mmap-effects-in-databases>)

Published: 2025-04-22T00:00:00Z

Content type: article

Language: en

Sources: [Gaurav Sarma's Blog](<https://devfeed.tech/sources/gaurav-sarma-s-blog.md>)

Topics: [Database](<https://devfeed.tech/topics/database.md>), [Operating system](<https://devfeed.tech/topics/operating-system.md>), [data](<https://devfeed.tech/topics/data.md>), [systems](<https://devfeed.tech/topics/systems.md>), [file](<https://devfeed.tech/topics/file.md>), [memory pool](<https://devfeed.tech/topics/memory-pool.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [file](<https://devfeed.tech/tags/file.md>), [memory](<https://devfeed.tech/tags/memory.md>), [mmap](<https://devfeed.tech/tags/mmap.md>), [operating-systems](<https://devfeed.tech/tags/operating-systems.md>), [performance](<https://devfeed.tech/tags/performance.md>), [system](<https://devfeed.tech/tags/system.md>)

## AI overview

This article explains how databases use operating-system storage and memory mechanisms, including buffered writes, storage blocks, database pages, and memory mapping, and discusses their effects on performance and data resiliency.

## Source excerpt

. [mmap Effects in Databases](mmap-effects-in-databases-cover...