Peter Geoghegan on Twitter: "@axboe @MarkCallaghanDB @omsandov The fsync philosophy" / Twitter

Pretty simple - if you run out of requests trying to read or write data, then the IO is simply dropped rather than queued. That prevents congestion on the device.

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Mark Callaghan

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For buffered IO writes would the error be return on the write by userland or to the kernel on writeback?

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Just EIO it and let the application read or write it somewhere else.

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The fsync philosophy

5:54 PM · Apr 2, 2022Twitter Web App

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