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Date:      Sat, 27 Jul 2024 16:01:22 -0700
From:      "Simon J. Gerraty" <sjg@juniper.net>
To:        Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
Cc:        Nuno Teixeira <eduardo@FreeBSD.org>, <freebsd-current@FreeBSD.org>, <sjg@juniper.net>
Subject:   Re: filemon
Message-ID:  <1083.1722121282@kaos.jnpr.net>
In-Reply-To: <ZqUMgp8gcsY6iuAF@plan-b.pwste.edu.pl>
References:  <ZqT6_a_0F8DCUsBm@int21h> <CAFDf7UKxhSu%2BqMGV1KahrSX9ho8vFut4avxNVX4D8QGa6%2B%2BTjQ@mail.gmail.com> <ZqUMgp8gcsY6iuAF@plan-b.pwste.edu.pl>

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Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> wrote:
> 
> What about filesystem perfomnace ? Have you benchmarked your FS and
> whole system  with and without filemon loaded ?

FWIW filemon does nothing unless make opens the device.
and then it only impacts syscalls done by that pid and its children.

> I am not questionining the usecase, but loading this module only when
> it's required seems to be more resonable for me.
> 
> --
> Marek Zarychta



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