Date: Thu, 21 Jul 2011 19:18:07 +0200 From: Ivan Voras <ivoras@freebsd.org> To: Luiz Otavio O Souza <lists.br@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS and large directories - caveat report Message-ID: <CAF-QHFUs7OAAwcFvSymc3YYX3Cdq%2BQUUSP_4OFXCegCbzLkOUA@mail.gmail.com> In-Reply-To: <13577F3E-DE59-44F4-98F7-9587E26499B8@gmail.com> References: <j09hk8$svj$1@dough.gmane.org> <13577F3E-DE59-44F4-98F7-9587E26499B8@gmail.com>
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On 21 July 2011 18:38, Luiz Otavio O Souza <lists.br@gmail.com> wrote: > The general usage on this server is fine, but the periodic (daily) scripts take almost a day to complete and the server is slow as hell while the daily scripts are running. Yes, this is how my problem was first diagnosed. > So, yes, i can confirm that running 'find' on a ZFS FS with a lot of files is very, very slow (and looks like it isn't related to how the files are distributed on the FS). Only it's not just "find" - it's any directory operations - including file creation and removal. I cannot say that is not related to how files are distributed on the file system, except the unusually long operations on the parent of the shard directories in my case.
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