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Date:      Sun, 16 Dec 2012 14:28:48 +0200
From:      Andriy Gapon <avg@FreeBSD.org>
To:        Tom <freebsdlists@bsdunix.ch>
Cc:        freebsd-fs@FreeBSD.org
Subject:   Re: zfs: is it possible to set metaslab_debug to 1?
Message-ID:  <50CDBE80.7080308@FreeBSD.org>
In-Reply-To: <50CCA8B8.7010808@bsdunix.ch>
References:  <50CCA8B8.7010808@bsdunix.ch>

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on 15/12/2012 18:43 Tom said the following:
> Hi,
> 
> Is it possible to set metaslab_debug to 1 on freebsd without recompiling:
> usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c
> 
> /*
>  * Metaslab debugging: when set, keeps all space maps in core to verify
> frees.
>  */
> static int metaslab_debug = 0;
> 
> Is this even possible on FreeBSD? It often helps with ZFS perfomance
> issues on Solaris with lots of ram.

kgdb -w
set metaslab_debug=1

Were you looking for something like this?


-- 
Andriy Gapon



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