[Dovecot] 1.0.rc22 released

[Timo Sirainen]

On Tue, 2007-02-06 at 11:41 -0800, Dan Price wrote:
> When dovecot calls fsync on the mailbox, ZFS
> is forced to commit all of those changes to the platter right then and
> there, and forces the application to wait.

BTW. There are two potential problems here:

1) The application needs to wait, which makes it appear slower to the
user.

2) The system I/O load in general could grow, which would make the
system slower for everyone.

I think 1) isn't that big of an issue normally since the delays should
be fractions of a second, but 2) is.

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