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Date:      Tue, 29 May 2012 23:30:46 +0200
From:      Kees Jan Koster <kjkoster@gmail.com>
To:        Freddie Cash <fjwcash@gmail.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: FreeBSD 9.0 hangs on heavy I/O
Message-ID:  <66F196D1-A6D0-437B-886B-2E1A445A69F2@gmail.com>
In-Reply-To: <CAOjFWZ7MKE9GJQbUW2OxDSdrNV7Z%2Bp8MApSSb_YWtzWAmYq6_A@mail.gmail.com>
References:  <BD5D6BB6-8CFF-456A-B03E-05454EB03AB6@gmail.com> <CAOjFWZ40LX%2B8Lw15mHDG8F3nN0aex5EpqVdjPxRPS89t1Fqkiw@mail.gmail.com> <CAOjFWZ7964oeTNZqADj4cRt3kkdOf5Mwyx8GQDnJnZ8vyONckg@mail.gmail.com> <17320979-2ED2-4DF2-97E9-09035F4DD3BB@gmail.com> <CAOjFWZ7MKE9GJQbUW2OxDSdrNV7Z%2Bp8MApSSb_YWtzWAmYq6_A@mail.gmail.com>

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Dear Freddie,

> Granted, I haven't played with gsched yet (most of our high-I/O
> systems are ZFS), so there may be a way to use it across-GEOMs.

=46rom my previous experiments ZFS suffers the same fate when there is =
heavy write activity. Reads just don't get served in time.

How do you deal with that?
--
Kees Jan

http://java-monitor.com/
kjkoster@kjkoster.org
+31651838192

Change is good. Granted, it is good in retrospect, but change is good.




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