Subject: Re: ext2fs is in the tree
To: Johan Danielsson <>
From: Perry E. Metzger <>
List: current-users
Date: 06/11/1997 13:29:12
Johan Danielsson writes:
> > It does give a nice performance boost on most filesystems (on
> > Solaris we see a 20-40% gain on our newsserver). I have not checked
> > the kernel sources, but the linux man pages say that they support
> > sychronous writes on ext2fs, if mounted with that option.
> Wasn't there some patches for FreeBSD to do semi-asynchronous metadata
> operations? IIRC it was about as fast as ext2.

Doing proper ordering/dependancy graphs on file system writes can gain
you substantial performance boots. HOWEVER, I don't know of anyone
that has an implementation for 4.4BSD derived systems that I would

I understand Kirk is working on one, though -- or was a year ago.