Date: Sat, 8 Mar 2003 17:13:50 +0100 From: Matthias Schuendehuette <msch@snafu.de> To: Nuno Teixeira <nunotex@aeiou.pt> Cc: freebsd-current@freebsd.org Subject: Re: softupdates && write cache && ata tags topic Message-ID: <200303081713.50636.msch@snafu.de>
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Hi, > Is it safe to use softupdates + write cache + ata tags (IBM disk)? The summary of *my* experience and knowledge is: It is considered *unsave* to use Soft Updates with WriteCache enabled. I consider it unnecessary to use WriteCache if TaggedQueuing is enabled and working. (The performace gain of WriteCache and TaggedQueuing is more or less the same, the combination of both adds less than 10% of performance and you shouldn't use Soft Updates any more) Soft Updates alone add a huge amount of performance. So I recommend to use Soft Updates with Tagged Queuing enabled. -- Ciao/BSD - Matthias Matthias Schuendehuette <msch [at] snafu.de>, Berlin (Germany) Powered by FreeBSD 5.0-CURRENT To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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