https://bugs.openldap.org/show_bug.cgi?id=10454
Issue ID: 10454
Summary: O_DSYNC is busted on macos
Product: LMDB
Version: unspecified
Hardware: All
OS: Mac OS
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
LMDB relies on O_DSYNC for writing the meta page, unfortunately it doesn't work
on macos. Previous discovery by the tigerbeetle guys:
https://github.com/tigerbeetle/viewstamped-replication-made-famous#leaderboard,
some more context at https://x.com/jorandirkgreef/status/1532314169604726784.
I discovered this during benchmarking and was wondering why lmdb writes were
twice as fast as macos as on linux.
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