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Technology4h 56m ago

A Linux engineer achieved a 5% storage speed boost in kernel version 7.2 by moving three lines of code.

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N/A

Who
Fengnan Chang, Christian Brauner
What
A Linux engineer achieved a 5% storage speed boost in kernel version 7.2 by moving three lines of code.
When
Tue, 16 Jun 2026 02:28:00 GMT · 4h 56m ago
Where
N/A ·
Why
Moving three lines of code to run post-iteration, specifically skipping an unnecessary iomap memset after iteration, freed write bandwidth.
The Frontline Impact

How this affects you

This small code change significantly boosted Input/Output Operations Per Second (IOPS) by approximately 5% on ext4 and xfs filesystems, enhancing the speed at which storage drives send and receive data in Linux 7.2.

Story chain

2 events in this thread
  1. Currently Reading4h 56m ago
    A Linux engineer achieved a 5% storage speed boost in kernel version 7.2 by moving three lines of code.
  2. Technology4h 56m ago
    Linux 7.2 gained a 5% IOPS performance increase on ext4/xfs filesystems due to a small code change.
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