stewartsmith/libeatmydata
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libeatmydata - because fsync() should be a no-op
11 mentions on Hacker News by 11 people: 4 stories, 7 comments · first 2017-12-04 · latest 2025-10-14
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Have a look at libeatmydata - https://github.com/stewartsmith/libeatmydata Things will still get written to disk eventually, it's just that fsync() returns instantly without actually doing anything. It's sometimes used in CI and…
comment by roryirvine · 2025-06-27 · in Save your disk, write files directly into RAM with /dev/shm -
You can also add journal_async_commit,noauto_da_alloc > maybe disable flushes with https://github.com/stewartsmith/libeatmydata overlayfs has a volatile mount option that has that effect. So stacking a volatile overlayfs with the upper and…
comment by the8472 · 2023-05-11 · in Bcachefs – A New COW Filesystem -
…data=writeback, barrier=0, bump up dirty_ratio, tune ^has_journal, maybe disable flushes with https://github.com/stewartsmith/libeatmydata
comment by viraptor · 2023-05-11 · in Bcachefs – A New COW Filesystem -
…using that, you'd probably be comfortable disabling fsync on the datasets for those apps. [0]: https://github.com/stewartsmith/libeatmydata
comment by hardwaresofton · 2023-04-03 · in The secret life of fsync -
I "recommend" https://github.com/stewartsmith/libeatmydata :)
comment by FeepingCreature · 2021-02-24 · in M1 Mac owners are experiencing high SSD writes over short periods of time -
…for the toolbox, to be used very carefully, after thinking about the consequences: libeatmydata: https://github.com/stewartsmith/libeatmydata It disables fsync, o_sync etc, making them no-ops, essentially making the programs writes unsafe.…
comment by Twirrim · 2019-02-18 · in LD_PRELOAD: The Hero We Need and Deserve -
Interesting projects that employ LD_PRELOAD: https://github.com/stewartsmith/libeatmydata https://github.com/wolfcw/libfaketime https://cwrap.org/ https://github.com/dex4er/fakechroot https://blitiri.com.ar/p/libfiu/…
comment by jwilk · 2017-12-04 · in Using LD_PRELOAD to cheat, inject features and investigate programs (2013)