Tag: ext4

How Buddy Allocator do filling disk from empty to full

Let’s see how ext4 buddy allocator work in with such workload

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Buddy allocator request normalization

Request normalization(ext4_mb_normalize_request()) is key buddy allocator step. Required range size is decided at this moment.

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Ext4 buddy allocator

Ext4 has quite complicated block allocation optimisation subsystem – buddy allocator. Let’s research what is it.

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