On 18-Oct-08, at 12:46 AM, Roch Bourbonnais wrote: > > Leave the default recordsize. With 128K recordsize, files smaller than > 128K are stored as single record > tightly fitted to the smallest possible # of disk sectors. Reads and > writes are then managed with fewer ops. > > Not tuning the recordsize is very generally more space efficient and > more performant. > Large DB (fixed size aligned accesses to uncacheable working set) is > the exception here (tuning recordsize helps) and a few other corner > cases. > > -r > > > Le 15 sept. 08 à 04:49, Peter Eriksson a écrit : > >> I wonder if there exists some tool that can be used to figure out an >> optimal ZFS recordsize configuration? Specifically for a mail >> server using Maildir (one ZFS filesystem per user). Ie, lot's of >> small files (one file per email).
Emails aren't as small as they used to be. I wouldn't be surprised if the median size is a good portion of 128K anyway. --Toby >> -- >> This message posted from opensolaris.org >> _______________________________________________ >> 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 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
