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Date:      Thu, 30 Dec 1999 22:34:04 -0800
From:      Mike Smith <msmith@freebsd.org>
To:        Tom <tom@uniserve.com>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: softupdates and debug.max_softdeps 
Message-ID:  <199912310634.WAA00620@mass.cdrom.com>
In-Reply-To: Your message of "Thu, 30 Dec 1999 17:02:33 PST." <Pine.BSF.4.02A.9912301650520.9644-100000@shell.uniserve.ca> 

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>   That is interesting.  So I guess the conclusion to this is, softupdates
> is useful for bursty IO, but not sustained because it can get far behind
> until it eventually reaches the point where the machine reboots silently.
> I guess the delay until reboot is dependent on the size of max_softdeps.
> If it is big, it takes a while.

I mentioned this a while back in the context of suspended I/O (in this 
case, a RAID array busy dealing with a failed disk).  There wasn't much 
interest in dealing with it evinced at that point.

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com




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