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Date:      Thu, 5 Jun 2003 10:18:27 -0700 (PDT)
From:      Kip Macy <kmacy@fsmware.com>
To:        Gabriel Ambuehl <gabriel_ambuehl@buz.ch>
Cc:        freebsd-cluster@freebsd.org
Subject:   Re: Re[2]: iSCSI and clustering with FreeBSD
Message-ID:  <Pine.LNX.4.21.0306051015210.30871-100000@walnut.he.net>
In-Reply-To: <1386056109.20030605191524@buz.ch>

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> 
> I think it's mostly process migration combined with a scheduler. It
> still doesn't support threads of one process on different machines
> IIRC. Then again, the performance to sync such would be prohibitively
> anyway.

It has a number of extensions for improving performance, including
a clustered file system. The unpatched version (which itself is a
_large_ patch), cannot migrate rfork style threaded programs. The 
problem is linux views (or, at least pre-nptl, viewed) threads as 
separate processes, so only migrating one process would be extremely
expensive.


			-Kip



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