[Bug 219049] ftruncate() slow on UFS+journaled softupdates

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Tue Feb 27 22:11:38 UTC 2018


Mark Johnston <markj at FreeBSD.org> changed:

           What    |Removed                     |Added
                 CC|                            |markj at FreeBSD.org

--- Comment #9 from Mark Johnston <markj at FreeBSD.org> ---
(In reply to Alexander Motin from comment #7)
AFAIK, the journaling code issues BIO_FLUSH only when debug.softdep.flushcache
is set to 1, which it is not by default. I have not been able to reproduce the
issue with or without that sysctl set, but it would interesting to know whether
anyone that can reproduce this is setting that sysctl.

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