Messages in this thread | | | Date | Fri, 19 Mar 2004 23:03:54 +0100 | From | Matthias Andree <> | Subject | Re: True fsync() in Linux (on IDE) |
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On Fri, 19 Mar 2004, Peter Zaitsev wrote:
> If file system would guaranty atomicity of write() calls (synchronous > would be enough) we could disable it and get good extra performance.
Berkeley DB 4.2.52 for instance documents that page writes (of data base pages) must be atomic, hence, if the data base page size is larger than what the FS can write atomically, a crash may leave the data base in a non-recoverable (catastrophic) state. (This assumes using the write-ahead logging "Berkeley DB Transactional Data Store" mode of operation, the other modes aren't recoveable after crash anyways.)
-- Matthias Andree
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