On 6/10/08, Volker A. Brandt <[EMAIL PROTECTED]> wrote: >> It might just be me, and the 'feel' of it, but it still feels to me that >> the system needs to be under more memory pressure before ZFS gives pages >> back. This could also be because I'm typically using systems with either >> > 128GB, or <= 4GB of RAM, and in the smaller case, not having some >> headroom costs me... > > I can confirm this "feeling". I have several older systems which used > to have UFS and now run using ZFS, and the effect is noticeable. I have > never gotten around to doing any benchmarks, but as a rule of thumb > any box under 2GB RAM is not really good for ZFS.
Here I made the opposite observation: Just installed nv90 to a dated notebook DELL D400; unmodified except of a 80GB 2.5" hard disk and - of course ! - an extra strip of 1 GB of RAM; making it 1.2 GB altogether. Now, first I installed UFS; then wiped everything to install the full ZFS-beauty. And I can't say that there was a noticeable difference between the two in respect to subjective speed behaviour. Uwe > > > Regards -- Volker > -- > ------------------------------------------------------------------------ > Volker A. Brandt Consulting and Support for Sun Solaris > Brandt & Brandt Computer GmbH WWW: http://www.bb-c.de/ > Am Wiesenpfad 6, 53340 Meckenheim Email: [EMAIL PROTECTED] > Handelsregister: Amtsgericht Bonn, HRB 10513 Schuhgröße: 45 > Geschäftsführer: Rainer J. H. Brandt und Volker A. Brandt > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
