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Introduction to the Linux Block I/O Layer

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 Thumshin, Johannes

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Introduction to the Linux Block I/O Layer
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63
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CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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In the last years the kernel's block I/O layer has been subject to quite some substantial changes. Ever increasing IOPS rates delivered by Flash based storage and high end SAN infrastructures demanded a refactoring of the I/O layer towards a lockless, multicore utilizing design. This talk will give a short introduction to both, the classic block layer and the so called multi queue block layer.