Date: Mon, 23 Jul 2001 22:38:00 -0500 From: Mike Meyer <mwm@mired.org> To: tonym@biolateral.com.au Cc: "Albert D. Cahalan" <acahalan@cs.uml.edu>, stable@freebsd.org Subject: Re: Softupdate, is it better than journaling file system? Message-ID: <15196.60824.446123.550996@guru.mired.org> In-Reply-To: <3B5CE0EB.2227C110@angis.org.au> References: <200107240144.f6O1iwN277507@saturn.cs.uml.edu> <3B5CE0EB.2227C110@angis.org.au>
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Tony Maher <tonym@angis.org.au> types: > "Albert D. Cahalan" wrote: > > > > Sung Nae Cho writes: > > > > > I was wondering if there is a real perferomance comparison > > > between softupdates and journaling file systems > > > > No, there is not. > > > > Journalling can be very fast when sync writes are required. > > (for email, NFS, or whatever) At other times, it can be slow. > > Your mileage may vary. > > > > Note that many journalling filesystems have performance > > benefits that are completely unrelated to journalling. > > This is simply a result of newer design. > > Or you could read some actual research on the subject: > > http://www.usenix.org/publications/library/proceedings/usenix2000/general/seltzer.html That version requires a membership in usenix. One of the authors has published it at <URL: http://www.lcs.ece.cmu.edu/~soules/papers/seltzer.pdf > <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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